Dicyanamide ionic liquids. The characterization of the ILs was carried out using NMR (1 H and 13 C) spectroscopy and elemental analysis. cm−2 light-emitting diode (LED), binary electrolyte cells (20 wt% AMIM-DCA) showed a significant increase in open-circuit Mar 1, 2014 · The effect of water and ionic liquid structure on the excess molar volume for binary mixtures {dicyanamide-based ionic liquids (1) + water (2)} at T = 298. Tests of lab-scale prototypes reported herein Jan 18, 2007 · A series of dicyanamide [N(CN)2]-based ionic liquids were prepared using 1-alkyl-3-methylimidazolium cations with different alkyl chain lengths and ethyl-containing heterocyclic cations with different ring structures, and the influence of such structural variations on their thermal property, density, electrochemical window, viscosity, ionic conductivity, and solvatochromic effects was Aug 15, 2022 · A theoretical study was performed to investigate the solute-solvent interactions between 1-ethyl-3-methyl-imidazolium ( [EMIM] +) dicyanamide ( [DCA] -) ionic liquid (IL) and each of the three traditional molecular solvents, namely, water, methanol and chloroform, to elucidate the geometry of the stable IL⋯co-solvent structures as well as the interaction strength at different possible sites Aug 1, 2015 · Synthesis of new ionic liquids (ILs) based on diazobicyclo undacane (DBU) cation containing various alkyl groups such as ethyl, butyl, hexyl, octyl, decyl and tetradecyl group with dicyanamide anion were performed. • The calculated enthalpy of formation was found to decrease with increasing alkyl chain length. Their determined solubilities in common solvents of different polarity and surface tension were proved to be related to the length of their alkyl side chain. TAAILs with dicyanamide (DCA) and bis (trifluoromethylsulfonyl)imide (N (SO 2 CF 3) 2, NTf 2) anions showed remarkable differences of Apr 10, 2018 · The main focus of this work is the study of molecular dynamics and conductivity relaxation of amorphous Trihexyl tetradecyl phosphonium dicyanamide ( [P 14,6,6,6] [N (CN) 2]) ionic liquid which is proved as a better electrolyte in super capacitors, over a wide frequency 10 -2 Hz to 10 7 Hz and the temperature range between 123k and 265 k by Nov 25, 2015 · Two ionic liquids (ILs) with the same dicyanamide anion and various cation types: imidazolium and phosphonium as catalytic agents of epoxy resin have been compared. Due to the coordinating ability of the DCA anion, metal salts are often better soluble in dicyanamide based ionic liquids [14]. Nonetheless, their safety issues are often overlooked. , 1-ethyl-3-methylimidazolium dicyanamide ([C2mim][N(CN)2]), are investigated. 8 × 10 -2 S cm -1) at room temperature. Under a 2. All of the synthesized ILs, were characterized by FT-IR, 1 HNMR, 13CNMR spectroscopies and elemental analysis. , 1-butyl-3-methylimdazolium ([BMI] [N (CN) 2]), 1-ethyl-3-methylimdazolium ([EMI] [N (CN) 2]), ethylated tetrahydrothiophenium ( [S2] [N (CN) 2]) and ethyldimethylsulfonium ([EtMe 2 S] [N (CN) 2]), have been investigated to determine their extraction capability for thiophene (TS) and The effective abatement of flue gas emissions, especially polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), is one of the challenging issues in the field of environmental science currently. [30] They have half of the ionicity of ionic liquids since one ion is fixed as the polymer moiety to form a polymeric chain. Dicyanamide Ions as Com-plexing Agents of Co(II): From Weak Ligands in Water to Strong Ones in an Ionic Liquid. Two samples were prepared: one from sodium cyanamide and cyanogen bromide according to the method of Madelung and Kern [8] and the other from zinc dicyanamide kindly supplied by the American Cyanamide Corporation. The Aug 15, 2024 · Dicyanamide ionic liquid mixtures for curing and modifying flax-fiber reinforced epoxy resin composites Dawid Zielinski a b , Andrea Szpecht a , Marcin Smiglak a Show more Add to Mendeley Sep 9, 2022 · Three 1-alkyl-3-methylimidazolium dicyanamide ([Cnmim][N(CN)2]) ionic liquids were synthesized through anion-exchange reaction and characterized by FT-IR, 1H-NMR and 13C-NMR spectroscopy and by differential scanning calorimetry. Infrared spectra in the CaF 2, NaCI, and KBr regions were run on Jan 1, 2014 · Corrosion behavior of metals in 1-ethyl-3-methylimidazolium–dicyanamide, butylmethylpyrrolidinium–dicyanamide, and 1-ethyl-3-methylimidazolium chloride–chloroaluminate ionic liquids (ILs) is studied. Molodkina a , Artem Mishchenko b , Alexander V. At lower temperatures, methylammonium dicyanamide exhibits a robust network of hydrogen bonds, stabilizing and fixing the molecular cations as well as anions in the crystal lattice. incorporated by dicyanamide anions. The cure effect was found in many dicyanamide-containing ionic liquids with diverse cations, and the dicyanamide was found to incorporate directly into the triazine network. Dec 1, 2014 · New experimental density and thermal conductivity data of dicyanamide ionic liquids. This paper aims to decode the thermal reaction and decomposition hazard characteristics of ILs with an innovative method. hal-02271256 A refined set of potential parameters for 1-alkyl-3-methylimidazolium based room temperature ionic liquids with anions such as acetate, dicyanamide, and thiocyanate has been obtained. Then, the prepared Oct 4, 2002 · Request PDF | Ionic liquids based on imidazolium, ammonium and pyrrolidinium salts of the dicyanamide anion | New families of salts, based on quaternary ammonium, 1-methyl-3-alkylimidazolium or N Aug 23, 2006 · The orientation of the cation and the anion of 1-butyl-3-methylimidazolium dicyanamide at the platinum−liquid interface, using sum frequency generation (SFG) spectroscopy is reported. Apr 24, 2025 · Leveraging ionic liquids (ILs) to enhance the performance of common solvents is a promising and efficient approach to engineer novel working fluids that can aid in addressing unique industrial processing needs. The spectra of the two samples were identical. Dec 13, 2019 · Four different dicyanamide-based ionic liquids (ILs), [Cnmpy][DCA] (n = 4, 6, 8, and 10), were synthesized, characterized, and used to separate ethylbenzene from n-octane. The Aug 15, 2024 · Dicyanamide ionic liquid mixtures for curing and modifying flax-fiber reinforced epoxy resin composites Dawid Zielinski a b , Andrea Szpecht a , Marcin Smiglak a Show more Add to Mendeley Aug 1, 2015 · Synthesis of new ionic liquids (ILs) based on diazobicyclo undacane (DBU) cation containing various alkyl groups such as ethyl, butyl, hexyl, octyl, decyl and tetradecyl group with dicyanamide anion were performed. Polson, Kelvin J. The electrical The infrared absorbance spectrum of the ionic liquid 1-butyl-1-methylpyrrolidinium dicyanamide, mixed with water at two different concentrations, was measured between 160 and 300 K in the mid infrared range. Site charges of ions were derived through the density-derived electrostatic and charge partitioning (DDEC/c3) method utilizing periodic density functional theory calculations of these liquids. Characterization was performed with small-angle X-ray scattering (SAXS), UV-Vis spectroscopy, and MALDI-TOF mass spectrometry. In this work, the extractive denitrogenation performance of four dicyanamide-based ionic liquids (ILs) with different cationic c Aug 26, 2008 · The standard molar enthalpy of formation of the ionic liquid 1-butyl-1-methylpyrrolidinium dicyanamide has been determined at 298 K by means of combustion calorimetry, while the enthalpy of vaporization and the mass spectrum of the vapor (ion pairs) have been determined by temperature-programmed desorption and line of sight mass spectrometry. All the synthesized PILs were liquids at room temperature. The tilt angle of the C3 axis of the methyl group from the alkyl chain in the cations was found to Abstract This study focuses on the synthesis, characterization, and application of four ionic liquids (ILs), three of which are being reported for the first time, with unique thermal properties and diverse anion-cation combinations, specifically in the context of epoxy resin polymerization. 7 × 10 -2 S cm -1), possibly due to the larger molecular Jul 1, 2019 · Three hypergolic ionic liquids, anion dicyanamide ( [DCA]), cyanoborohydride ( [CBH]) and thiocyanate ( [SCN]) combining with cation 1-allyl-3-methyl imidazolium ( [AMIM]), are prepared to explore the hypergolicity of ionic liquids in our work. M. Imidazolium Dicyanamide based Room Temperature Ionic Liquids as Latent Curing Agents for Epoxy Systems Jeyarajasingam, Amutha. Some of the thermophysical properties of the ionic liquid were measured. Structural analysis (XRD, Raman, TGA and DSC) revealed that the increase New families of salts, based on quaternary ammonium, 1-methyl-3-alkylimidazolium or -methyl--alkylpyrrolidinium organic cations together with the dicyanamide (dca, N(CN)) anion are reported. The transport properties of DCA ionic liquids are significant for their applications as solvents, electrolytes, and hypergolic propellants. J. Intermolecular . Equilibrium data for Jul 1, 2019 · Three hypergolic ionic liquids, anion dicyanamide ( [DCA]), cyanoborohydride ( [CBH]) and thiocyanate ( [SCN]) combining with cation 1-allyl-3-methyl imidazolium ( [AMIM]), are prepared to explore the hypergolicity of ionic liquids in our work. We would like to show you a description here but the site won’t allow us. It is considered a greener alternative to organic traditional solvents due to its non-toxicity. The main focus of this work is the study of molecular dynamics and conductivity relaxation of amorphous Trihexyl tetradecyl phosphonium dicyanamide ([P14,6,6,6][N(CN)2]) ionic liquid which is The goal in this review is to survey the recent key developments and issues within ionic-liquid research in these areas, and to generate interest in the wider community and encourage others to make use of ionic liquids in tackling scientific challenges. Ehrenburg a , Elena B. Curnow, Matthew I. Experimental values of vapor pressure, enthalpy of vaporization, and enthalpy of formation of ionic liquids are the key thermodynamic quantities, which are required for the validation and development of the molecular modeling and ab initio methods toward this new class of solvents. The effects of the alkyl side-chain length on the interactions between the ILs and bovine serum albumin (BSA), the cytotoxicity and Mar 1, 2018 · The instructive structure-property relationships of ionic liquids (ILs) can be put to task-specific design of new functionalized ILs. To cite this version: Matthieu Gras, Nicolas Papaiconomou, Eric Chaînet, Isabelle Billard. Part A: Polymer Chem. Thermolysis of such ILs yields highly conductive May 10, 2007 · A series of dicyanamide [N(CN)2]-based ionic liquids were prepared using 1-alkyl-3-methylimidazolium cations with different alkyl chain lengths and ethyl-containing heterocyclic cations with different ring structures, and the influence of such structural variations on their thermal property, density … Oct 3, 2007 · Ionic liquids composed of dicyanamide anion and various imidazolium-based cations were prepared, and the influence of structural variations such as substituting a hydrogen at 2-position and changing the sort of alkyl group at 1-position of imidazolium cations on their thermal behavior, density, solvatochromic effects, viscosity, ionic conductivity, and surface tension was characterized. In Aug 15, 2022 · Abstract A theoretical study was performed to investigate the solute-solvent interactions between 1-ethyl-3-methyl-imidazolium ( [EMIM] +) dicyanamide ( [DCA] -) ionic liquid (IL) and each of the three traditional molecular solvents, namely, water, methanol and chloroform, to elucidate the geometry of the stable IL⋯co-solvent structures as well as the interaction strength at different Nov 15, 2020 · Impregnation of polyethylene membranes with 1-butyl-3-methylimidazolium dicyanamide ionic liquid for enhanced removal of Cd2+, Ni2+, and Zn2+ from aqueous solutions Feb 9, 2022 · Electrochemical Behavior of Sm (III) and Electrodeposition of Samarium from 1-Butyl-1-Methylpyrrolidinium Dicyanamide Ionic Liquid, Andrew, Chrysanthus, Murugesan, Chandran, Jayakumar, Mani Jan 19, 2023 · The effects of limited amounts (under 21. Miguel , Vicenta González-Alfaro , Francisco J. Llopis , Ernesto Vercher , Antoni Martínez-Andreu Show more Add to Mendeley Jul 10, 2008 · The electrochemistry of manganese was studied at a polycrystalline platinum disk electrode in the hydrophilic ionic liquid -butyl- -methylpyrrolidinium dicyanamide (BMP-DCA). Therefore two structural requirements must be fulfilled: On the one hand, the cation should carry nitrogen in a preferably aromatic environment, on the other hand nitrile groups are essential that can be e. Jan 9, 2023 · Abstract Electrochemical deposition of lanthanides and their alloys can be implemented at room temperature from organic ionic media, such as ionic liquids (ILs). Herein, novel dicyanamide anion-based (N(CN)2–) ionic liquid (IL)-functionalized reduced graphene oxide (rGO)-supported Pt catalysts are synthesized via a facile one-pot room temperature reduction method, which show a boost in methanol oxidation performance compared Oct 1, 2023 · 2. The ionic liquids are based on butyl-methyl imidazolium [BMIM]+ and hexyl-tributyl ammonium [N6444]+ together with dicyanamide [DCA]- as the anion. e. Feb 1, 2017 · Bis (trifluoromethylsulfonyl)imide, or dicyanamide-based ionic liquids in the liquid–liquid extraction of hex-1-ene from hexane and cyclohexene from cyclohexane Jan 1, 2018 · The work presented focused on the experimental liquid-liquid phase equilibrium measurements in ternary systems {ionic liquid (1) + hex-1-ene (2) + hexane (3)} and (ionic liquid (1) + cyclohexene (2) + cyclohexane (3)} at temperature T = 298. The cyclic voltammetry (CV) curves recorded in Ag-DCA/Pyri Apr 15, 2019 · In this research, the performance of the ionic liquids consists of diazabicyclo undecene (DBU) based cations and dicyanamide (DCN) anion in the extraction of naphthenic acid from acidic model oil was studied. The DCA − anion can act as either monodentate or bidentate ligand and therefore it can displace the nitrate ion from the uranyl Jul 18, 2024 · It is found that ester introduction into imidazolium or pyridinium cations can significantly improve the biodegradability property of ionic liquids and also influence the viscosity and the toxicity of ionic liquids. Aug 15, 2020 · The electrodeposition of silver was performed on a platinum electrode from a non-fluorinated ionic liquid (IL), butylpyridinium dicyanamide (Pyri4-DCA). Extraction of Cu (ii), Ni (ii), Pb (ii) and Cd (ii) from water was then performed using these ILs at room temperature. The utilization of these liquids as heat-transfer fluids, specifically in small heat exchangers and microchannels for microprocessor cooling, is presently deemed highly feasible, as it can be both more efficient and environmentally Apr 15, 2019 · In this research, the performance of the ionic liquids consists of diazabicyclo undecene (DBU) based cations and dicyanamide (DCN) anion in the extraction of naphthenic acid from acidic model oil was studied. • Atomization and isodesmic reactions at the G3 (MP2) were used. 15 K is presented in figure 2 [30], [33]. Their determined solubilities in common solvents of diferent polarity and surface tension were proved to be related to the length of their alkyl side chain. Ionic liquids (ILs) are salts in the liquid state defined by a low melting point below 100 °C [2] and are characterized by various of physical properties [3], such as low Dec 1, 2020 · A series of 1-alkyl-3-methylimidazolium dicyanamide ionic liquids ([Cnmim][N(CN)2], n = 2, 3, 4, 5, and 6) were synthesized and characterized in this work. The Aug 15, 2020 · The electrodeposition of silver was performed on a platinum electrode from a non-fluorinated ionic liquid (IL), butylpyridinium dicyanamide (Pyri 4 -DCA). The transport properties of DCA ionic liquids are significant for their applications as solvents, electrolytes and hypergolic propellants. The activity coefficients at infinite dilution of selected 60 organic compounds and water in this IL was presented and discussed. Aug 29, 2025 · Within the present study, five different RTILs based on the dicyanamide anion (DCA −) were synthesized and evaluated as electrolyte additives for OER in alkaline water electrolysis. Neat epoxy materials cured with imidazolium IL exhibited above 45 days latency, high thermal performance, i. The transport properties of DCA ionic liquids … May 1, 2016 · Dicyanamide-based ionic liquids in the liquid–liquid extraction of aromatics from alkanes: Experimental evaluation and computational predictions Marcos Larriba a b , Pablo Navarro a , Maria Gonzalez-Miquel b , Salama Omar c , José Palomar c , Julián García a , Francisco Rodríguez a Show more Add to Mendeley Jan 1, 2025 · The phosphonium-based ionic liquid trihexyl (tetradecyl)phosphonium dicyanamide [P 666,14] [N (CN) 2] has undergone extensive studies in terms of its dielectric, spectroscopic, vibrational, and thermal properties [35], [36]. External field intensity dependence of electronic properties was investigated by utilization of field intensity Aug 26, 2021 · As an environmentally friendly energy technology, direct methanol fuel cells (DMFCs) meet the needs of sustainable development. Herein, we report the electrochemical behaviour of samarium (III) and the electrodeposition of samarium in 1-butyl-1-methylpyrrolidinium bis (trifluoromethylsulfonyl)imide, ionic liquid. Sep 27, 2021 · Carbohydrate moieties were combined with various cross-linkable anions (thiocyanate [SCN], tetracyanoborate [TCB], tricyanomethanide [TCM], and dicyanamide [DCA]) and investigated as precursors for the synthesis of nitrogen-doped and nitrogen-/sulfur-co-doped Aug 31, 2023 · The synthesis was performed by mixing tetrachloroauric acid (HAuCl 4 ⋅ 3 H 2 O) with the ionic liquid 1-ethyl-3-methylimidazolium dicyanamide ( [Emim] [DCA]) at temperatures of 20 to 80 °C. Oct 1, 2021 · In this study, the behavior of 1-alkyl-3-methylimidazolium dicyanamide ionic liquids (ILs) with ethyl, butyl, hexyl, octyl, and decyl side-chains was evaluated to gain a deeper insight into the potential hazards posed by ILs to the environment and organisms. May 17, 2013 · Experimental and theoretical studies on thermodynamic properties of three ionic liquids based on dicyanamide anion (namely, 1-butyl-3-methylimidazolium dicyanamide, 1-butyl-1-methylpyrrolidinium dicyanamide, and 1-butyl-1-methylpiperidinium dicyanamide) and their binary mixtures with sugar alcohols (d-sorbitol and xylitol) were conducted in order to assess the applicability of the salts ionic The instructive structure-property relationships of ionic liquids (ILs) can be put to task-specific design of new functionalized ILs. … The removal of nitrogen-compounds (N-compounds), e. Imidazolium acetate ionic liquids with side-chains up to sixteen carbon atoms were synthesised in excellent yields via an on-water, one-pot reaction. 15 K and ambient pressure. quaternary ammonium, N-alkyl-N-methylpyrrolidinium or 1-alkyl-3 Oct 10, 2015 · The density of these ionic liquids was measured too. The DCA-based room-temperature ILs exhibit lower viscosities than those ILs based on BF 4, PF 6, and bis (trifluoromethylsulfonyl)imide (TFSI) anions. 1080/07366299. 0 to 343. 56 mW. [20] examined the binding of TCDD molecule on a graphene sheet. Thus, 1,3-dimethylimidazolium dicyanamide, bis (trifluoromethanesulfonyl)imide and dimethylphosphate were chosen as representative 1,3-dimethylimidazolium-based ionic liquids in this work. Apr 1, 2022 · Ionic liquids are molten salts that have excellent chemical and thermal stability. 3728884. The PILs were characterized using nuclear magnetic resonance, elemental analysis, and Fourier transform infrared spectroscopy Nov 15, 2023 · Abstract The electronic structure, inter-ionic interactions and charge transfer, polarizability, and first-order and second-order hyperpolarizabilities of 1-butyl-3-methylimidazolium dicyanamide ionic liquid have been explored via modeling at M06-2X/6-311++G (d,p) level of theory. In this study, the new dicationic ionic liquid based on dicyanamide anoins was synthesized and used as a protective ligand for Dec 1, 2014 · Request PDF | On Dec 1, 2014, J. Stable membranes with 9, 14, 24, 42 and 53 wt. P. 03 mS. Here, we explore to what extent the vibrational and rotational dynamics of the dicyanamide anion, a common ionic liquid anion, correlates with Dec 25, 2008 · PDF | On Dec 25, 2008, Isabel Bandrés and others published Physicochemical Characterization of n Butyl3-methylpyridinium Dicyanamide Ionic Liquid | Find, read and cite all the research you need Lithium-Modulated Conduction Band Edge Shifts and Charge-Transfer Dynamics in Dye-Sensitized Solar Cells Based on a Dicyanamide Ionic Liquid Jul 1, 2017 · Isobaric vapor-liquid equilibria for the extractive distillation of 2-propanol + water mixtures using 1-ethyl-3-methylimidazolium dicyanamide ionic liquid A. pyrrolidinium (e. η = 21 cP for 1-ethyl-3-methylimidazolium dicyanamide. In this respect, the effect of different curing cycles was investigated on the curing reactions and properties of the cured resins. Jun 15, 2020 · Highlights • Enthalpies of formation of dicyanamide based ionic liquids were calculated. However, their electrochemical properties remain less understood. The dicyanamide (DCA) ILs are typical CHN type ILs which are halogen free, chemical stable, low-viscous and fuel-rich. Mar 15, 2018 · The dicyanamide (DCA) ILs are typical CHN type ILs which are halogen free, chemical stable, low-viscous, and fuel-rich. 1-Ethyl-3-methylimidazolium dicyanamide (EMIM-DCA) is an ionic liquid that is often used as a solvent in various chemical reactions and as an electrolyte in batteries and capacitors. Among the materials investigated, Ni shows the lowest corrosion Abstract Four low-viscosity ionic liquids (ILs) based on the dicyanamide anion ( [N (CN) 2] −), i. Dec 1, 2015 · Ionic liquids with dicyanamide anion (DCA) were investigated due to their properties such as low melting point and low viscosity [10], [11], efficient mass transport [12] and a high electrical conductivity [13]. 10. Drexel University ProQuest Dissertations & Theses, 2012. Aug 20, 2022 · Environmentally friendly ionic liquid medium based on dicyanamide anion for leaching gold from e-waste CPUs by iodination Correspondence to: J Kou, School of Civil and Resource Engineering, University of Science and Technology, Beijing, 100083, China. Amperometric titration experiments suggest that Zn (II) reacted with DCA anions forming [Zn (DCA) 3] − complex anion, which also could be reduced to Zn metal Polymerized ionic liquids, poly (ionic liquid)s or polymeric ionic liquids, all abbreviated as PIL is the polymeric form of ionic liquids. Aug 1, 2023 · In this work, the ionic liquid 1-ethyl-3-methylimidazolium dicyanamide has been investigated and applied as a novel electrolyte instead of the aqueous solution to recover gold and regenerate iodine from iodination leachate by electrochemistry. DCA was chosen as a green (non-fluorinated) anion, suitable for electrochemical tests. Viscosity measurements showed that the new ionic liquid with vinylimidazolium group has lower viscosity than the ionic liquid with Dec 1, 2019 · In this way, the aim of this work is to study the suitability of ionic liquids for use as entrainer for separation of tert -butyl alcohol + water system. Sep 10, 2014 · ReviewSeptember 10, 2014 Energetic Ionic Liquids as Explosives and Propellant Fuels: A New Journey of Ionic Liquid Chemistry Qinghua Zhang *† Jean’ne M. The sulfur content in the raffinate phases is only ∼10 ppm after a few extraction Aug 8, 2018 · Synthesis and physical properties of tris (dialkylamino)cyclopropenium dicyanamide ionic liquids † Owen J. Herein we focus on the structure and ion dynamics in the bulk electrolyte. In Feb 17, 2016 · Dicyanamide [N(CN)2–] is a common anionic component of ionic liquids, several of which have shown hypergolic reactivity upon mixing with white-fuming nitric acid. Novel ionic liquids (ILs), containing a dicyanamide anion (DCA ), are synthesized and applied as suitable electrolytes for electrochemical double layer capacitors (EDLCs). Although effusion of RTILs into a reaction flow-tube or mass spectrometer is possible, competition between vaporization and thermal decomposition of the RTIL can greatly increase the complexity of the observed reaction products Ionic Liquids serve as non-aqueous electrolytes in electrochemical applications, valued for their conductivity and stability. The DCA-based room-temperature ILs exhibit lower viscosities than those ILs based on BF 4 -, PF 6 -, and bis (trifluoromethylsulfonyl)imide (TFSI) anions. Sodium dicyanamide was the principal salt used in this in vestigation. Abstract Novel ionic liquids (ILs), containing a dicyanamide anion (DCA −), are synthesized and applied as suitable electrolytes for electrochemical double layer capacitors (EDLCs). Jun 17, 2019 · Dmitry Bedrov Oleg Borodin Thermodynamic, Dynamic, and Structural Properties of Ionic Liquids Comprised of 1-Butyl-3-methylimidazolium Cation and Nitrate, Azide, or Dicyanamide Anions. The effect of water and/or ethanol compositions on densities and dynamic viscosities of Recently, it was reported that the dicyanamide (DCA) anion led to remarkable improvements of the viscosity and electro-chemical window (EW) of ammonium-, phosphonium- and imi-dazolium-based ionic liquids leading to be promising candi-dates for the applications mentioned above. Amperometric titration experiments suggest that Zn (II) reacted with DCA anions forming [Zn (DCA) 3] − complex anion, which also could be reduced to Zn metal Jan 1, 2017 · Dicationic IL with dicyanamide has good thermal stability and heat capacity. The parameter sets reported here concern the cations alkylimidazolium, tetra-alkylphosphonium, and N-alkylpyridinium, and the anions chloride, bromide Oct 20, 2015 · In this manuscript are reported the synthesis and physicochemical characterization of low viscosity pyrrolidinium dicyanamide (DCA−) ionic liquids (ILs). Due to their high ionic conductivity, these fluorine-free, molecular solvent-free ILs are excellent candidates to be employed as electrolytes in electrochemical double layer capacitors (EDLCs). Investigation of the 1,3-dialkylimidazolium based ionic liquids comprising the common cation (1-ethyl-3-methylimidazolium) and different anions (acetate, diethyl phosphate, dicyanamide or thiocyanate) via Aug 21, 2001 · Request PDF | Low viscosity ionic liquids based on organic salts of the dicyanamide anion | New families of salts viz. basic and neutral species, from fuel oils is necessary because of their inhibiting effect on the hydrodesulfurization process. In this study, we explore the thermochemistry of dicyanamide and its reactivity with nitric acid and other molecules to gain insight into the initial stages of the hypergolic phenomenon. Dec 1, 2021 · Ionic liquids have a wide engineering application foresight due to their easy and safe storage and handling while are limited by the unclear mechanism of hypergolic ignition. Walst and Ruhamah Yunis Nov 1, 2021 · PDF | On Nov 1, 2021, Yong Zheng published Electrochemical Properties of 1,3-Dimethylimidazolium Dicyanamide, Bis (trifluoromethanesulfonyl)imide and Dimethylphosphate Ionic Liquids | Find, read In this work, new ionic liquid, 1-propanenitrile-3-butylimidazolium dicyanamide was synthesized and applied for separation benzene and cyclohexane mixture. Samples 1-Ethyl-3-methylimidazolium dicyanamide ( [EMIM]DCN) and 1-Butyl-3-methylimidazolium dicyanamide ( [BMIM]DCN) are transparent liquids in goose yellow and light yellow, respectively, was purchased from HuaweiRuike Chemical Company in Beijing, China. Synthesis of N -cyanoalkyl-functionalized imidazolium nitrate and dicyanamide ionic liquids with a comparison of their thermal properties for energetic applications † Oct 5, 2006 · This is the third set of parameters of a force field for the molecular simulation of ionic liquids, developed within the spirit of the OPLS-AA model and thus oriented toward the calculation of equilibrium thermodynamic and structural properties. cm −1) and a low dynamic viscosity (24. … Sep 20, 2022 · Abstract Low-temperature electrodeposition strategies to obtain lanthanides in metallic form using ionic liquids are explored as sustainable substitutes to high-temperature molten salt electrolytes. Ignition delay time (IDT) and combustion May 17, 2016 · Abstract This work presents dicyanamide-containing ionic liquids as a new initiator system for cyanate ester resins. However, the relevant mechanism at the molecular The current work focuses instead on an ionic liquid based on the dicyanamide anion that on a time scale relevant to electron transfer and solvation dynamics does not appear to undergo facile fragmentation. Nov 15, 2014 · Request PDF | On Nov 15, 2014, Q. Curnow,* Matthew I. The Nov 15, 2020 · Impregnation of polyethylene membranes with 1-butyl-3-methylimidazolium dicyanamide ionic liquid for enhanced removal of Cd2+, Ni2+, and Zn2+ from aqueous solutions Sep 1, 2009 · The 1-butyl-3-methylimidazolium dicyanamide was thus selected for that purpose and the solubility of the CO 2 in this IL is compared to that in the 1-butyl-3-methylimidazolium bis (trifluoromethylsulfonyl)imide ionic liquid, also studied here and known to present one of the highest solubility towards CO 2 due to the presence of fluoroalkyl groups. The parameter sets reported here concern the cations a … Nov 19, 2019 · A set of new tunable aryl alkyl ionic liquids (TAAILs) based on the 1-aryl-3-alkyl imidazolium motif has been synthesized, in which the following variables were systematically changed: alkyl chain length, aryl substitution (group and position), and counter ion. Nov 1, 2005 · The dicyanamide-based phosphonium ionic liquids exhibited relatively low viscosities and high conductivities when compared to those of the corresponding ammonium ionic liquids. Sep 1, 2009 · In this work, these two characteristics are evaluated and compared through the study of gas–liquid equilibrium of two ionic liquids, 1-butyl-3-methylimidazolium dicyanamide ( [C4mim] [DCA]) and Sep 12, 2018 · The cycling performance of N-butyl-N-methylpyrrolidinium dicyanamide [C4mpyr][dca] ionic liquid (IL) with H2O additive for application in a Zn2+/Zn0 redox couple is reported for the first time under realistic flow conditions using a 3D printed flow half-cell prototype. The as-studied IL is characterized by a high ionic conductivity (11. 15K by means o… Synthesis and physical properties of tris(dialkylamino)cyclopropenium dicyanamide ionic liquids Owen J. 15 K over the whole composition range at atmospheric pressure. Ab initio calculations for 1-butyl-1 Sep 1, 2020 · Methylammonium dicyanamide, a waxy solid at RT, may be classified as an ionic liquid at T > 63 °C. 15 K. 6% χWater) of water on 1-butyl-3-methylimidazolium tetrafluoroborate (BmimBF4) and 1-butyl-3-methylimidazolium dicyanamide (BmimDCA) room-temperature ionic liquid (RTIL) mixtures were characterized by tracking changes in the linear and two-dimensional infrared (2D IR) vibrational features of the dicyanamide anion (DCA). The imidazolium acetate ionic liquids were also Jan 20, 2004 · New 1-ethyl-3-methylimidazolium (EMI) salts [EMI] [C (CN) 3] and [EMI] [Ag (CN) 2] were prepared and characterized. The ILs with [DCA] − were previously prepared by the metathesis reaction involving silver dicyanamide (AgDCA). 06 Miscibility : Water, Acetone, Acetonitril, Ethanol Immiscibility : Cyclohexane, Methyl tert-butyle éther Property : Hydrophile Aug 7, 2018 · Usually, very low viscosity ionic liquids are formed with the dicyanamide anion; e. Feb 1, 2008 · Electrodeposition of Al, Mn, Ni, Zn, Sn, and Cu are successfully demonstrnated in the ionic liquids (ILs) composed of 1-methyl-3-alkylimidazolium or N -methyl- N -alkylpyrrolidinium cations with dicyanamide (DCA) anions. 15 K) at atmospheric pressure. Room-temperature ionic liquids (RTILs) have attracted attention in engineering electrolytes for electrochemical energy conversion and storage devices. In this study, the behavior of 1-alkyl-3-methylimidazolium dicyanamide ionic liquids (ILs) with ethyl, butyl, hexyl, octyl, and decyl side-chains was evaluated to gain a deeper insight into the potential hazards posed by ILs to the environment and organisms. In this study, three dicyanamide-based ionic liquids with different cations, 1-allyl-3-methyl imidazolium ( [AMIm]), 1-ethyl-3-methylimidazolium ( [EMIm]) and 1-butyl-3-methyl-imidazolium ( [BMIm]), are prepared to react Dec 30, 2010 · In this work, the extractive and oxidative deep desulfurizations of model fuel oils using a low-viscosity ionic liquid, i. In summary, we found that various s -triazine compounds are generated during the ignition of hypergolic dicyanamide ionic liquids with nitric acid, among which we identified melamine and its oligomers, for example, melam and melem. Nov 1, 2012 · Ionic liquids (ILs) are highly suitable to act as precursors for nitrogen-doped carbon materials. Jul 1, 2011 · Electrochemical reaction of Zn (II)/Zn on glassy carbon electrode (GC) and Mg alloy substrates was investigated in the room-temperature ionic liquid, N -butyl- N -methyl-pyrrolidinium dicyanamide (BMP-DCA) containing ZnCl 2 at 323 K. [C2mim][N(CN)2] is capable of effectively extracting thiophene (TS) and dibenzothiophene (DBT) from oils. The structure of the cation influences its electrostatic interaction Jan 1, 2012 · The electrodeposition and dissolution of Zn 2+ have been investigated in 1-ethyl-3-methylimidazolium dicyanamide [emim] [dca] ionic liquid to support the development of Zn-based secondary batteries. The reduction potential of the Sn (II)/Sn couple produced in these two solutions Dec 1, 2014 · Thermophysical properties of ionic liquid dicyanamide (DCA) nanosystems Dedicated to the memory of the late Professor Manuel Ribeiro da Silva. 15 to 343. 1-3-Didodecylimidazolium dicyanamide (dDDIM DCA), 1-3-Didodecylimidazolium docusate (dDDIM DOSS), 1-ethyl-3 Feb 28, 2019 · Hence, our results suggest that the dynamics of dicyanamide is only in part representative of the ionic liquid structural dynamics. 2018. We have developed and utilized an Mar 15, 2018 · The instructive structure-property relationships of ionic liquids (ILs) can be put to task-specific design of new functionalized ILs. [54–57] Therefore, we were interested in the combination of the di Apr 29, 2015 · Synthesis of new ionic liquids (ILs) based on diazobicyclo undacane (DBU) cation containing various alkyl groups such as ethyl, butyl, hexyl, octyl, decyl and tetradecyl group with dicyanamide The dynamics of probe molecules is commonly used to investigate the structural dynamics of room-temperature ionic liquids; however, the extent to which this dynamics reflects the dynamics of the ionic liquids or is probe specific has remained debated. Physicochemical properties such as density, speed of sound, refractive index, surface tension, and kinematic viscosity of the studied liquid have been experimentally measured in a wide range of temperatures. Peak shifts with increasing Dec 1, 2023 · Room-temperature electrochemical deposition of lanthanides and their alloys can be achieved employing organic ionic media, such as ionic liquids (ILs). 17), and stability (395 °C/5% weight loss), whereas with Dec 17, 2015 · Boron is traditionally used as an additive in energetic systems as a result of the high density of energy. 0 K. Apr 22, 2016 · In the present work the limiting activity coefficients (γ13∞) for 65 solutes, including polar and nonpolar solutes as alkanes, alkenes, and alkynes as well as aromatic hydrocarbons, alcohols, water, ethers, ketones, acetonitrile, pyridine, 1-nitropropane, thiophene, and esters in the 1-allyl-3-methylimidazolium dicyanamide ([AMIM][DCA]) were determined by gas–liquid chromatography at six Jan 1, 2023 · Introduction of Extractive Desulfurization of Fuels by ILs In recent years, as a kind of green solvent with low vapor pressure, nonvolatile, low melting point, wide liquid path, good electrical and thermal conductivity, high heat capacity and stability, and strong solubility selectivity, ionic liquids (ILs) have been widely used in extractive desulfurization [6]. May 1, 2019 · The coordinating ability of the dicyanamide (DCA⁻) anion has been exploited for dissolving the uranyl nitrate in ionic liquid medium composed of 1-butyl-3-methylimidazolium dicyanamide (C4mImDCA Dec 13, 2019 · Four different dicyanamide-based ionic liquids (ILs), [C n mpy]- [DCA] (n = 4, 6, 8, and 10), were synthesized, characterized, and used to separate ethylbenzene from n-octane. The solubility of CO 2 in the aqueous mixtures of MEA + ILs was measured over a range of CO 2 partial pressure of 10–800 kPa and ILs concentrations Jul 22, 2024 · Ionic liquids with the dicyanamide anion, namely, with 1-alkyl-imidazolium cations have been receiving attention recently due to their potential applications. Within the present study, five different RTILs were prepared and subsequently investigated as additives to alkaline aqueous solutions for the oxygen evolution reaction (OER). Medicines are stored in dark, sealed, and room temperature cabinets before the Jan 1, 2018 · The work presented focused on the experimental liquid-liquid phase equilibrium measurements in ternary systems {ionic liquid (1) + hex-1-ene (2) + hexane (3)} and (ionic liquid (1) + cyclohexene (2) + cyclohexane (3)} at temperature T = 298. Aug 7, 2014 · The thermal behavior and transport properties of several ion jellys (IJs), a composite that results from the combination of gelatin with an ionic liquid (IL), were investigated by dielectric relaxation spectroscopy (DRS), differential scanning calorimetry (DSC), and pulsed field gradient nuclear mag … Nov 1, 2007 · Ionic liquids composed of dicyanamide anion and various imidazolium-based cations were prepared, and the influence of structural variations such as substituting a hydrogen at 2-position and Mar 1, 2020 · This paper reports on the preparation and testing of blend membranes based on polyvinyl alcohol (PVA) and 1-ethyl-3-methylimidazolium dicyanamide ( [EMIM] [DCA]) ionic liquid (IL) for effective CO2 /H 2 gas separation. The dicyanamide (DCA) ILs are typical CHN type ILs which are Jul 4, 2006 · The long term thermal stability of ionic liquids containing dicyanamide or tricyanomethide anions is significantly lower than might be expected from temperature ramped TGA studies, and these Sep 1, 2009 · The 1-butyl-3-methylimidazolium dicyanamide was thus selected for that purpose and the solubility of the CO 2 in this IL is compared to that in the 1-butyl-3-methylimidazolium bis (trifluoromethylsulfonyl)imide ionic liquid, also studied here and known to present one of the highest solubility towards CO 2 due to the presence of fluoroalkyl groups. The ionic liquid used was 1-ethyl-3-methylimidazolium dicyanamide ( [emim] [DCA]). In this work, carbon from palm waste sources was modified with trihexYl(tetradecyl)phosphonium dicyanamide-ionic liquid and characterized by SEM, EDS, XRD and FTIR to assess surface properties. The characterization of the ILs was carried out using NMR (1 H and 13C) spectroscopy and elemental analysis. Ignition delay time (IDT) and combustion Apr 11, 2022 · As a new solvent with a broad prospect, ionic liquids (ILs) are widely used in catalysis, organic synthesis, and electrochemistry due to their peculiar physical and chemical properties. 1545341. In addition, some significant thermodynamic parameters were also estimated. Initially, the results of the Jan 1, 2014 · Corrosion behavior of metals in 1-ethyl-3-methylimidazolium–dicyanamide, butylmethylpyrrolidinium–dicyanamide, and 1-ethyl-3-methylimidazolium chloride–chloroaluminate ionic liquids (ILs) is studied. PILs have a similar range of applications, comparable with those of ionic liquids but the polymer architecture provides a better May 1, 2017 · The objective of this work was to explore the feasibility of extraction of hex-1-ene from hexane and cyclohexene from cyclohexane with different ionic… Apr 1, 2020 · Recently we explored the cycling behavior of a series of electrolytes based on a readily available dicyanamide-based ionic liquid with various sodium salts added based on fluorinated anions in order to improve sodium electrochemistry. Selected physico-chemical properties (density, viscosity and ionic Feb 1, 2017 · Bis (trifluoromethylsulfonyl)imide, or dicyanamide-based ionic liquids in the liquid–liquid extraction of hex-1-ene from hexane and cyclohexene from cyclohexane Urszula Domańska a b , Monika Karpińska a , Michał Wlazło a Show more Add to Mendeley Abstract Three 1-alkyl-3-methylimidazolium dicyanamide ([Cnmim][N(CN)2]) ionic liquids were synthesized through anion-exchange reaction and characterized by FT-IR, 1H-NMR and 13C-NMR spectroscopy and by diferential scanning calorimetry. The reduction potential of the Sn (II)/Sn couple produced in these two solutions Apr 1, 2013 · The effective abatement of flue gas emissions, especially polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), is one of the challenging issues in the field of environmental science currently. • Good agreement with experimental data, where available, was achieved. Oct 1, 2022 · In the case of lanthanides (Ln), however, this technology is inapplicable in water solutions due to their pronounced electropositivity. 1. The constituent anions, rather than the cations, are the predominant species that govern the IL corrosivity toward materials. The most dicyanamide-based phosphonium ionic liquids prepared were hydrophilic, except ionic liquids containing a long alkyl chain in the phosohonium cation. g. | Find, read and cite all the research you need on Mar 14, 2018 · The mechanism of reaction between 1-ethyl-3-methylimidazolium acetate and the difunctional diglycidyl ether of bisphenol A (DGEBA) is explored using thermal and spectroscopic methods. The transport properties of DCA ionic liquids are significant for their applications as solvents, electrolytes, and hypergolic propellants Jul 1, 2019 · The coordinating ability of the dicyanamide (DCA −) anion has been exploited for dissolving the uranyl nitrate in ionic liquid medium composed of 1-butyl-3-methylimidazolium dicyanamide (C4 mImDCA) and N-butyl -N- methylpyrrolidinium dicyanamide (C 4 mPyDCA). The vapour- liquid equilibrium and relative volatility of the components were determined. Jun 1, 2007 · A series of dicyanamide [N (CN)2]-based ionic liquids were prepared using 1-alkyl-3-methylimidazolium cations with different alkyl chain lengths and ethyl-containing heterocyclic cations with Jul 1, 2011 · Electrochemical reaction of Zn (II)/Zn on glassy carbon electrode (GC) and Mg alloy substrates was investigated in the room-temperature ionic liquid, N -butyl- N -methyl-pyrrolidinium dicyanamide (BMP-DCA) containing ZnCl 2 at 323 K. 32 A low melting solid is formed with [N 111CN ] [DCA May 5, 2020 · A robust general route to lanthanide dicyanamide (DCA[–] ) complexes has been developed where f-element salts are dissolved in DCA[–] -based ionic liquids (ILs) directly or formed in situ, forcing coordination of these normally weakly Nov 14, 2022 · The ionic liquid 1-butyl-3-methylimidazolium dicyanamide ([Bmim][Dca]) is a novel solvent suitable for a wide range of applications in the petrochemical industry. Jul 15, 2020 · This research is focused on a new attractive ionic liquid, namely 1- (4-methoxy-4-oxobutyl)-3-methylimidazolium dicyanamide, [ (C 3 COOMe)MIM] [DCA]. Because they have qualities inherent to some precepts of green chem… Ionic liquids (ILs) are highly suitable to act as precursors for nitrogen-doped carbon materials. Jun 1, 2025 · Abstract The extraction properties of choline dicyanamide, namely the selectivities and capacities for heptane/benzene, heptane/thiophene, heptane/pyridine, and heptane/1-nitropropane separation problems, were determined and compared to the literature values for other ionic liquids based on dicyanamide anion. Their densities, viscosities, heat of formation, specific impulse, ignition delay time, melting point, charge distribution, and decomposition temperature were tested Aug 20, 2015 · As an alternative, ionic liquids have been suggested. Unsymmetrical dicationic ionic liquids had higher density than monocationic analogues. Oct 31, 2016 · Hydrophobic ionic liquids (ILs) were generated by association between tetraalkylammonium cations and dicyanamide (Dca−) anion. , № 52, с. The dicyanamide-based ionic liquids (ILs) were discussed as solvents for two types of separation problems of hexane/hex-1-ene Jan 1, 2018 · The preparation of a series of novel low viscosity 1-allyl-3-methylimidazolium ionic liquids (ILs) is performed following dedicated synthetic routes. The molecular structures of these compounds were identified by NMR, FT-IR and CHN analysis. Cyclic voltammetry indicates that the zinc salt dissolved in the ionic liquid (IL) is a critical factor in the observed Zn/Zn 2+ electrochemistry. Computer simulation of a mixture of naphthenic acid, ionic liquid, and n-dodecane was also performed. Aug 1, 2012 · In this paper, experimental densities and dynamic viscosities of 1-ethyl-3-methylimidazolium based ionic liquids (ILs) with the anions acetate and dicyanamide are presented in a wide temperature range (298. s), which are appropriate for the electrodeposition process. Imidazolium-based dicyanamide ionic liquids (ILs) were proposed to have pot … Feb 1, 2008 · Electrodeposition of Al, Mn, Ni, Zn, Sn, and Cu are successfully demonstrnated in the ionic liquids (ILs) composed of 1-methyl-3-alkylimidazolium or N -methyl- N -alkylpyrrolidinium cations with dicyanamide (DCA) anions. The dicyanamide-based ionic liquids (ILs) were discussed as solvents for two types of separation problems of hexane/hex-1-ene Jul 22, 2024 · Thermophysical Properties of 1-Ethyl-3-methylimidazolium Dicyanamide + Water: Understanding Interactions and Structure of Ionic Liquid + Water Systems Feb 20, 2011 · The standard molar enthalpy of formation ΔfHm°(l) of the ionic liquid N-butyl-3-methylpyridinium dicyanamide has been determined at 298. However, the thermal safety of [Bmim][Dca] IL has not been fully considered when developing new uses, especially in areas involving high-temperature work. Sep 28, 2020 · In this paper, four kinds of guanidinium dicyanamide-based energetic salts were prepared and investigated as energetic additives to hypergolic ionic liquid 1-ethyl-3-methyl imidazolium dicyanamide ([EMIM][DCA]) for the first time. Rudnev a Show more Add to Mendeley This work is concerned with thermodynamic properties of binary mixtures composed of 1-butyl-1-methylpyrrolidinium dicyanamide ionic liquid (IL) and the following molecular solvents: n-heptane, benzene, toluene, ethylbenzene, thiophene, 1-butanol, 1-hexanol, and 1-octanol. Apr 15, 2011 · The electrochemistry of Sn (II) was studied in the room temperature ionic liquid 1-ethyl-3-methylimidazolium dicyanamide (EMI-DCA) on a glassy carbon (GC) and a polycrystalline Pt electrode at 40 °C. This conductivity is less than that of [EMI] [N (CN) 2] salt (2. Oct 3, 2007 · Ionic liquids composed of dicyanamide anion and various imidazolium-based cations were prepared, and the influence of structural variations such as substituting a hydrogen at 2-position and changing the sort of alkyl group at 1-position of imidazolium cations on their thermal behavior, density, solvatochromic effects, viscosity, ionic conductivity, and surface tension was characterized. 15 to 353. Here, we explore to fi what extent the vibrational and rotational dynamics of the dicyanamide anion, a common ionic liquid anion, correlates with the structural relaxation of ionic liquids. The Sn (II) species was introduced into the ionic liquid by either dissolution of SnCl 2 or anodizing a Sn wire. Jan 1, 2020 · Over the past two decades, ionic liquids (ILs) have had a wide range and cutting-edge impact, generating promising science and technologies and have a… IM0211B 1-Ethyl-3-methylimidazolium Dicyanamide Emim DCA, Emi DCA Brute formula : C8H11N5 CAS : [370865-89-7] Molar mass : 177. The Debus–Radziszewski imidazole synthesis was adapted to directly yield long-chain imidazolium ionic liquids. The Zn 2+ salt anions were found to have varying Dec 30, 2010 · The physicochemical and electrochemical properties of room temperature ionic liquids based on quaternary phosphonium cations together with a dicyanamide anion are presented in this report. The dicyanamide (DCA) ILs are typical CHN type ILs which are halogen free, chemical stable, low-viscous, and fuel-rich. The imidazolium acetate ILs acted as surfactants when dissolved in various solvents. • A linear correlation was observed between enthalpy of Jan 1, 2018 · The preparation of a series of novel low viscosity 1-allyl-3-methylimidazolium ionic liquids (ILs) is performed following dedicated synthetic routes. Surface tension of these ILs was measured at T = 298. However, the physical and chemical properties of each ionic liquid are unique. Four chloride and dicyanamide ionic liquids with ester groups were prepared, and the effect of Jan 1, 2025 · The ionic bonding of positively and negatively charged ions produces ionic compounds, which are atoms or molecules with an electric charge (cations or anions); table salt (sodium chloride, NaCl) is a common example [1]. The use of a coordinating Dca− anion allows high extraction yields for cop Jan 1, 2018 · The densities, dynamic viscosities, and electrical conductivities of the ionic liquid (IL) N-butyl-pyridinium dicyanamide ( [C4py] [DCA]) and its binary system with propylene carbonate (PC) were measured at the temperature range from 288. quaternary ammonium, N -alkyl- N -methylpyrrolidinium or 1-alkyl-3-methylimidazolium dicyanamides, Cat + N (CN) 2−, are low melting compounds, most being liquid at rt, water-miscible and have low (for ionic liquids) viscosity at rt, e. 15 K under atmospheric pressure. 4 mPa. The dicyanamide (DCA) ILs are typical CHN type ILs which are halogen free, chemical stable, low-viscous, and fuel-rich. Here, we demonstrate enhanced solvent behavior by addition of IL, which, among other thin … Aug 7, 2018 · Synthesis and physical properties of tris (dialkylamino)cyclopropenium dicyanamide ionic liquids † Aug 8, 2018 · Novel ionic liquids (ILs), containing a dicyanamide anion (DCA −), are synthesized and applied as suitable electrolytes for electrochemical double layer capacitors (EDLCs). A polynomial equation describing the temperature dependence of the density is provided. Feb 1, 2008 · Request PDF | Dicyanamide anion based ionic liquids for electrodeposition of metals | Electrodeposition of Al, Mn, Ni, Zn, Sn, and Cu are successfully demonstrnated in the ionic liquids (ILs Nov 17, 2024 · To overcome these problems, 1-ethyl-3-methylimidazolium dicyanamide ( [EMI]N (CN) 2) ionic liquid was used in this study to control linear growth or crosslinking reactions. % of IL were prepared via the solution casting procedure. The shear viscosity of a dicationic ionic liquid ( (1- (2-azido-3-methyl-3H-imidazole-1-ium) propyl)-3-vinyl-3H-imidazole-1-ium di-dicyanamide) and its corresponding monocationic analogue were also measured. This work studies the electroreduction of lanthanides (Ln) from a dicyanamide ionic liquid (IL) on a model Pt (1 1 1) substrate in dry solutions and upon addition of controlled amounts of water. 31 and triaminocyclopropenium. The dicyanamide initiator provides an alternative to metal and hydroxyl catalysts, and produces a novel In a wider sense, ionic liquids are molten salts that melt below 100 degrees C and give access to a number of elements that cannot be electrodeposited from aqueous solutions, such as the light and refractory metals, as well as elemental and compound semiconductors. The salts are low melting compounds, all those reported are liquid at room temperature, for example 1-methyl-3-ethylimidazoli The tricyanomethanide ionic liquids have similar conductivity, thermal stability, and electrochemical stability as the dicyanamide ionic liquids, but they are not as hygroscopic. Dec 30, 2010 · The physicochemical and electrochemical properties of room temperature ionic liquids based on quaternary phosphonium cations together with a dicyanamide anion are presented in this report. Vicent Orchillés , Pablo J. Here, we study the electrochemical (co)deposition of La and Fe-group transition metals from solutions in 1-butyl-1-methyl-pyrrolidinium dicyanamide IL, [BMP] [DCA], with controlled water content. Feb 1, 2013 · Motivated by the potential of using room temperature ionic liquids (RTILs) as electrolytes to replace traditional aqueous electrolytes for Zn-anode secondary batteries, Zn/Zn (II) redox reactions have been studied in four aprotic RTILs based on pyrrolidinium ( [Pyrr] +) and imidazolium ( [Im] +) cations, and bis (trifluoromethanesulfonyl)imide ( [TFSI] −) and dicyanamide ( [DCA] −) anions This chapter contains a tabular compilation of volumetric properties, phase equilibrium and conductivity of 1-butyl-3-methylimidazolium dicyanamide mixtures. Sep 12, 2006 · This is the third set of parameters of a force field for the molecular simulation of ionic liquids, developed within the spirit of the OPLS-AA model and thus oriented toward the calculation of equilibrium thermodynamic and structural properties. Equilibrium data for the corresponding ternary systems were measured at 313. In this work Apr 1, 2013 · They further studied that 1-butyl-3-methylimidazolium dicyanamide ionic liquid can be used as an efficient sorbent for TCDD using combined (MD) simulation and quantum chemical (QM) calculation [19]. Studied RTILs were based on dicyanamide ion as a green anion, suitable Journal of Molecular Liquids, 2013 A series of new room temperature ionic liquids based on N-alkyl-N-methylmorpholinium cations (the alkyl chain ranging from ethyl to nonyl) and a hydrophilic anion (dicyanamide), a mostly unexplored class of room temperature ionic liquids (RTILs), has been synthesized and characterized. Starting from the initial decomposition temperature of [Bmim][Dca] IL, this Nov 1, 2021 · 1,3-dimethylimidazolium-based ionic liquids show promise as electrolytes because of their special cation structure. For example, Bösmann et al The unusually high heats of vaporization of room-temperature ionic liquids (RTILs) complicate the utilization of thermal evaporation to study ionic liquid reactivity. Walst, and Ruhamah Yunis Mar 1, 2017 · A new group of low viscosity hydrophobic trioctylammonium-based protic ionic liquids (PILs) with 2-naphthoate, 4-tert-butylbenzoate, 2-hexyldecanoate, and 4-phenylbutanoate anions were synthesized. Here, we explore to what extent the vibrational and rotational dynamics of the dicyanamide anion, a common ionic liquid anion, correlates with the structural relaxation of ionic liquids. While most of the metal Oct 4, 2024 · A novel binary electrolyte composed of the planar structured 1-allyl-3-methylimidazolium dicyanamide (AMIM-DCA) ionic liquid (IL) mixed with acetonitrile-based iodide/tri-iodide electrolyte was prepared for sustainable dye-sensitized solar cells (DSSCs). In this work, we studied Sm and Co electrodeposition and their codeposition in the [BMP][DCA] (1-butyl-1-methylpyrrolidinium) IL with controlled water content by electrochemical methods combined with scanning probe microscopy and X A novel binary electrolyte composed of the planar structured 1-allyl-3-methylimidazolium dicyanamide (AMIM-DCA) ionic liquid (IL) mixed with acetonitrile-based iodide/tri-iodide electrolyte was prepared for sustainable dye-sensitized solar cells (DSSCs). Shreeve *‡ Oct 1, 2021 · The inhibition to bacterial growth augmented when the alkyl chain length increased. From results, coefficients of thermal expansion, molar refractions, dynamic viscosities and Nov 1, 2015 · Novel dual dicyanamide-based ionic liquids consisting of coupled ammonium–imidazolium cationic structures were synthesized and their thermal properties were studied. Zhang and others published Electrodeposition of lanthanum from a dicyanamide anion based ionic liquid | Find, read and cite all the research you need on Oct 19, 2015 · Dicyanamide-containing ionic liquids directly substitute O-donor ligands on hydrated uranyl salts to give isolable uranyl dicyanamide complexes in fast, room-temperature reactions. This is the very first time when experimental data on liquid–liquid equilibrium (LLE) phase diagrams and excess Dec 30, 2022 · The negative environmental and industrial impacts of the presence of sulfur compounds such as benzothiophene in fuels have led to a greater interest in desulfurization research. Jan 18, 2007 · A series of dicyanamide [N(CN)2]-based ionic liquids were prepared using 1-alkyl-3-methylimidazolium cations with different alkyl chain lengths and ethyl-containing heterocyclic cations with different ring structures, and the influence of such structural variations on their thermal property, density, electrochemical window, viscosity, ionic conductivity, and solvatochromic effects was Abstract New families of salts viz. In this work, Pd electrodeposition was investigated on Ni at room temperature in one of the promising air- and water-stable ionic liquids, 1-butyl-1-methylpyrrolidinium dicyanamide ( [Bmpyrr] [DCA]). 583-601. Solvent Extraction and Ion Exchange, 2018, Progress Using Ionic Liquids in Liquid-Liquid Extraction, 36 (6), pp. 3463 Guo, Effect of ionic liquid octyltriphenylphosphonium-chelated orthoborates on flame retardance of epoxy, Polym. B. França and others published Thermophysical Properties of Ionic Liquid Dicyanamide (DCA) Nanosystems. Ionic liquids based on dicyanamide anion reveal good electrochemical properties. The water content, halide content and the thermal decomposition Jun 1, 2025 · The extraction properties of choline dicyanamide, namely the selectivities and capacities for heptane/benzene, heptane/thiophene, heptane/pyridine, and heptane/1-nitropropane separation problems, were determined and compared to the literature values for other ionic liquids based on dicyanamide anion. Their viscosity and ionic conductivity values were determined. Sep 24, 2024 · This study focuses on the synthesis, characterization, and application of four ionic liquids (ILs), three of which are being reported for the first time, with unique thermal properties and diverse anion-cation combinations, specifically in the context of epoxy resin polymerization. Imidazolium-based dicyanamide ionic liquids (ILs) were proposed to have potential in controlling the emissions of PCDD/Fs. While most of the The room temperature ionic liquid n-butyl-3-methylpyridinium dicyanamide has been characterized. The density and absolute viscosity of BMP-DCA were determined over a temperature range from 299. The water content, halide content and the thermal decomposition Oct 20, 2015 · In this manuscript are reported the synthesis and physicochemical characterization of low viscosity pyrrolidinium dicyanamide (DCA −) ionic liquids (ILs). Sum frequency spectra at two different polarizations and different potentials are recorded, and analysis of polarization-dependent spectra is performed to estimate the orientation of the dicyanamide anion and Jul 10, 2018 · Furthermore, the intrinsic nature of ionic liquid and poly (ionic liquid) promote the ionic conductivity in the iongels in comparison with solid polymer electrolytes, and prevent the exuding of the ionic liquid due to similarity in chemical structure. The prepared ILs are either composed of triethyl-propargylammonium (N 222pr+) or triethyl-butylammonium (N 2224+) cations paired with the DCA − anion. Mar 15, 2014 · Two low viscous ionic liquids (ILs), 1- (2-hydroxyethyl)-3-methyl-imidazolium dicyanamide ( [C2 OHmim] [DCA]) and 1-butyl-3-methylimidazolium ( [Bmim] [DCA]) were selected to mixed with aqueous 30 wt% monoethanolamine (MEA) for CO2 absorption. A new class of azide-functionalized monocationic and unsymmetrical dicationic ionic liquids (ILs) with low viscosity and high liquid range was synthesized. This Apr 15, 2011 · The electrochemistry of Sn (II) was studied in the room temperature ionic liquid 1-ethyl-3-methylimidazolium dicyanamide (EMI-DCA) on a glassy carbon (GC) and a polycrystalline Pt electrode at 40 °C. We report here a very convenient and much less expensive May 20, 2021 · The promoting effect of water on the electrodeposition of Eu in a dicyanamide ionic liquid Maria R. Zhang et al. This IL electrolyte displayed a superior performance at high current densities (3 mA cm–2) under the flow condition, in Dynamics of Dicyanamide in Ionic Liquids are Dominated by Local Interactions Johannes Hunger,1* Soham Roy,1,2 Maksim Grechko,1 and Mischa Bonn1 Use N-ethylpyridinium dicyanamide to solve the challenges of ionic liquids in various applications. Polymer Sci. Raman Jan 3, 2013 · Abstract Ionic liquids (ILs) composed of two different pyrazolium cations with dicyanamide and bis (trifluoromethanesulfonyl)imide anions have been synthesized and characterized by NMR, Kamlet–Taft solvatochromic parameters, conductivity and rheological measurements, as well as ab initio calculations. Their viscosity, density, melting point, energy properties and specific impulse are measured and calculated. The orientation of the cation and the anion of room-temperature ionic liquids using sum frequency generation vibrational spectroscopy is reported. 1-3-Didodecylimidazolium dicyanamide (dDDIM DCA), 1-3-Didodecylimidazolium docusate (dDDIM DOSS), 1 The instructive structure-property relationships of ionic liquids (ILs) can be put to task-specific design of new functionalized ILs. The C (CN) 3 salt has a melting point at −11 °C and shows a low viscosity (18 cP) and a high ionic conductivity (1. The cyclic voltammetry (CV) curves recorded in Ag-DCA/Pyri4 Jul 8, 2019 · Several new sulfonium ionic liquids (ILs) with dicyanamide ( [DCA] −) and bis (trifluoromethylsulfonyl)imide ( [TFSI] −) counter anions have been synthesized. A robust general route to lanthanide dicyanamide (DCA–) complexes has been developed where f-element salts are dissolved in DCA–-based ionic liquids (ILs) directly or formed in situ, forcing coordination of these normally weakly coordinating soft Apr 23, 2025 · Sodium dicyanamide is used in agriculture as a fertilizer additive, which is also studied in ignition delay reduction in ionic liquid. Rather, the dynamics of the probe anion seems to be determined by the specific interaction of [DCA] - with the ionic liquid's ions for the class of [emim] + -based ionic liquids studied here. cm−1) and a low dynamic viscosity (24. Mar 13, 2007 · Ionic liquids are attracting growing interest as alternatives to conventional molecular solvents. glass transition temperature (above 190 °C), low tan δ (0. 5% Cation : 1-Ethyl-3-methylimidazolium Anion : dicyanamide Density : 1. In particular, the existence of the naturally formed boron oxide (B2O3) layer retards the reactivity by acting as a barrier if it cannot be efficiently removed. 23 Purity : 99. The viscosity obeys the Nov 1, 2019 · Dicyanamide based ionic liquid has been utilized to investigate the voltammetric behaviour of Sm (III) and no electrodeposition of samarium was performed in this ionic liquid electrolyte [19]. A higher selectivity is observed for lower aromatic concentrations in the feed (20% max); this is a key factor in Nguyen, Ionic liquids as reactive additives for the preparation and modification of epoxy networks, J. aqms layuwoc mh6 cwj1 zsxsee is ukef gmtwa burw ryg2de