The cationic portion of N-ethyl-N-methylpiperidine bis(trifluoromethanesulfonyl)imide salt is the piperidine ring, which belongs to a six-membered cyclic structure and has an ethyl and a methyl group attached to the nitrogen atom. This structure gives it high chemical stability and low viscosity. The TFSI anion is a bulky fluorine-containing anion with excellent electrochemical stability and low pairing energy. The presence of TFSI allows it to exhibit a low melting point and good conductivity, while being non-volatile, reducing its environmental impact. It can be used as battery electrolytes, supercapacitors, green solvents and lubricants and coatings.
Pyridine ionic liquids (Pyr-ILs) play a significant role in gas capture and separation processes due to their unique combination of physicochemical properties, including high thermal stability, low volatility, tunable vi...
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