Protic ionic liquid and ionic melts prepared from methanesulfonic acid and 1H-1,2,4-triazole as high temperature PEMFC electrolytes

@article{Luo2011ProticIL,
  title={Protic ionic liquid and ionic melts prepared from methanesulfonic acid and 1H-1,2,4-triazole as high temperature PEMFC electrolytes},
  author={Jiangshui Luo and Jin-Hao Hu and W. Saak and R. Beckhaus and G. Wittstock and I. Vankelecom and C. Agert and O. Conrad},
  journal={Journal of Materials Chemistry},
  year={2011},
  volume={21},
  pages={10426-10436}
}
Protic ionic liquid and ionic melts were prepared from the combination of methanesulfonic acid (CH3SO3H) and 1H-1,2,4-triazole (C2H3N3) at various molar ratios. The thermal properties, crystal structure, acid–base interactions, ionic conductivity, proton conduction behavior and electrochemical stability of the system were studied. The equimolar composition, 1,2,4-triazolium methanesulfonate (C2H4N3+·CH3SO3− (1)), was a proton transfer salt with a melting point of around 134 °C. Single crystal… Expand
1,2,4-Triazolium perfluorobutanesulfonate as an archetypal pure protic organic ionic plastic crystal electrolyte for all-solid-state fuel cells
1,2,4-Triazolium perfluorobutanesulfonate (1), a novel, pure protic organic ionic plastic crystal (POIPC) with a wide plastic crystalline phase, has been explored as a proof-of-principle anhydrousExpand
Protic ionic liquids immobilized in phosphoric acid-doped polybenzimidazole matrix enable polymer electrolyte fuel cell operation at 200 °C
Abstract Protic ionic liquids (PILs) based on the anion bis(trifluoromethanesulfonyl)imide were confined in polybenzimidazole (PBI) matrices. Quasi-solidified ionic liquid membranes (QSILMs) wereExpand
Oxadiazolyl-pyridines and perfluoroalkyl-carboxylic acids as building blocks for protic ionic liquids: crossing the thin line between ionic and hydrogen bonded materials.
TLDR
The important outcome of this investigation is that the complete proton transfer reaction cannot be taken for granted. Expand
Influence of Cation Size on the Ionicity, Fluidity, and Physiochemical Properties of 1,2,4-Triazolium Based Ionic Liquids.
TLDR
In this work, a series of ILs based on 1-alkyl-1,2,4-triazolium cation with trifluoromethanesulfonate anion were synthesized and the effect of cation and temperature on physiochemical properties such as density, viscosity, speed of sound, conductivity, and rheology was studied. Expand
Imidazolium methanesulfonate as a high temperature proton conductor
Imidazolium methanesulfonate (1) has been studied as a model proton conductor for high temperature polymer electrolyte membrane fuel cells (PEMFCs). It is found that 1 undergoes transformation fromExpand
Thermal behavior and electrochemistry of protic ionic liquids based on triethylamine with different acids
Protic ionic liquids (PILs) composed of the triethylammonium cation with dihydrogen phosphite, tosylate, and trifluoroacetate anions were synthesized. All samples were salts with melting points belowExpand
Ionic association and conductance of ionic liquids in dichloromethane at temperatures from 278.15 to 303.15 K
The electrical conductances of very dilute solutions of the ionic liquids 1-ethyl-3-methylimidazolium tetrafluoroborate [emim][BF4] and 1-butyl-3-methylimidazolium tetrafluoroborate [bmim][BF4] inExpand
Improving the Conductivity of Sulfonated Polyimides as Proton Exchange Membranes by Doping of a Protic Ionic Liquid
Proton exchange membranes (PEMs) are a key component of a proton exchange membrane fuel cell. Sulfonated polyimides (SPIs) were doped by protic ionic liquid (PIL) to prepare composite PEMs withExpand
Alkaline imidazolium- and quaternary ammonium-functionalized anion exchange membranes for alkaline fuel cell applications
Alkaline imidazolium-type ionic liquids (ILs) and quaternary ammonium salt functionalized alkaline anion-exchange membranes (AEMs), with the same ion exchange capacity (IEC), were synthesized via inExpand
Development of proton-conducting membrane based on incorporating a proton conductor 1,2,4-triazolium methanesulfonate into the Nafion membrane
In this paper, 1,2,4-triazolium methanesulfonate (C2H4N+3CH3SO−3, [Tri][MS]), an ionic conductor, was successfully synthesized. It exhibited high ionic conductivity of 18.60 mS·cm−1 at 140°C andExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 102 REFERENCES
Proton-Conducting Properties of a Brønsted Acid−Base Ionic Liquid and Ionic Melts Consisting of Bis(trifluoromethanesulfonyl)imide and Benzimidazole for Fuel Cell Electrolytes
A novel protic ionic liquid and ionic melts consisting of a Bronsted acid and base were prepared with the combination of bis(trifluoromethanesulfonyl)imide (HTFSI) and benzimidazole (BIm) at variousExpand
Alkylammonium-based protic ionic liquids. Part I: Preparation and physicochemical characterization.
TLDR
Alkylammonium-based PILs have a relatively low cost and low toxicity and show a high ionic conductivity at room temperature and have wide applicable perspectives for fuel cell devices, thermal transfer fluids, and acid-catalyzed reaction media and catalysts as replacements of conventional inorganic acids. Expand
Protic ionic liquids based on the dimeric and oligomeric anions: [(AcO)xH(x-1)]-.
TLDR
The composition consisting of 3 moles acetic acid and 1 mole N-methylpyrrolidine is shown to form the highest ionicity mixture in this binary due to the presence of oligomeric anionic species [(AcO)(x)H(x-1)](-) stabilised by hydrogen bonds. Expand
Polymer Electrolyte Membranes Based on p-Toluenesulfonic Acid Doped Poly(1-vinyl-1,2,4-triazole): Synthesis, Thermal and Proton Conductivity Properties
Throughout this work, the synthesis, thermal as well as proton conducting properties of acid doped heterocy- clic polymer were studied under anhydrous conditions. In this context,Expand
Electrochemistry of room temperature protic ionic liquids.
TLDR
The survey highlights the problems with voltammetric studies in highly viscous room temperature protic ionic liquids and also suggests the way forward with respect to their possible industrial use. Expand
Intrinsically proton-conducting poly(1-vinyl-1,2,4-triazole)/triflic acid blends
Abstract In the present work, proton conductivity in a polymer blend comprising proton solvating heterocycles was examined. Poly(1-vinyl-1,2,4-triazole), PVTri was produced by free radicalExpand
Development and characterization of polymer electrolyte membranes based on ionical cross-linked poly(1-vinyl-1,2,4 triazole) and poly(vinylphosphonic acid)
Abstract The fabrication, thermal and proton conducting properties of complex polymer electrolytes based on poly(vinylphosphonic acid) (VPA) and poly(1-vinyl-1,2,4-triazole) (PVTri) were investigatedExpand
Brønsted acid-base ionic liquids as proton-conducting nonaqueous electrolytes
A new series of Bronsted acid−base ionic liquids were derived from the controlled combination of a monoprotonic acid with an organic base under solvent-free conditions. Appropriate amounts of solidExpand
Synthesis and proton conductivity of poly(styrene sulfonic acid)/heterocycle‐based membranes
BACKGROUND: High proton conduction through anhydrous polymer electrolyte membranes is crucial for the application to chemical energy conversion devices such as fuel cells. In this context, novelExpand
Effects of different acid functional groups on proton conductivity of polymer-1,2,4-triazole blends
Proton transfer reactions under anhydrous conditions have attracted remarkable interest due to chemical energy conversions in polymer electrolyte membrane fuel cells. In this work, 1H-1,2,4-triazoleExpand
...
1
2
3
4
5
...