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Synthesis and Thermophysical Properties of Ether‐Functionalized Sulfonium Ionic Liquids as Potential Electrolytes for Electrochemical Applications
Author(s) -
Coadou Erwan,
Goodrich Peter,
Neale Alex R.,
Timperman Laure,
Hardacre Christopher,
Jacquemin Johan,
Anouti Mérièm
Publication year - 2016
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201600882
Subject(s) - electrochemical window , ionic liquid , sulfonium , electrochemistry , electrolyte , ionic conductivity , sulfonyl , chemistry , thermal stability , ether , imide , materials science , thermal decomposition , inorganic chemistry , chemical engineering , organic chemistry , alkyl , electrode , salt (chemistry) , engineering , catalysis
During this work, a novel series of hydrophobic room temperature ionic liquids (ILs) based on five ether functionalized sulfonium cations bearing the bis{(trifluoromethyl)sulfonyl}imide, [NTf 2 ] − anion were synthesized and characterized. Their physicochemical properties, such as density, viscosity and ionic conductivity, electrochemical window, along with thermal properties including phase transition behavior and decomposition temperature, have been measured. All of these ILs showed large liquid range temperature, low viscosity, and good conductivity. Additionally, by combining DFT calculations along with electrochemical characterization it appears that these novel ILs show good electrochemical stability windows, suitable for the potential application as electrolyte materials in electrochemical energy storage devices.