The influence of air and its components on the cathodic stability of N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide
2007 (English)In: Electrochimica Acta, ISSN 0013-4686, E-ISSN 0019-4686, Vol. 53, no 4, 1837-1842 p.Article in journal (Refereed) Published
Although water- and air-stable ionic liquids have been in use for some years, experiments found in the literature are still per-formed in inert gas with ppm levels of oxygen and water. In this study, the influence of different environments (vacuum, argon, nitrogen, air and oxygen and water) on the cathodic electrochemical window of the ionic liquid N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14TFSI) is reported and compared with investigations and processes found in the literature. The investigation indicates that this ionic liquid is highly stable in a vacuum and under argon flow. However, its cathodic stability is reduced in nitrogen and dry air. The simultaneous presence of water and air strongly affected the useful electrochemical window, as seen previously for imidazolium-based ionic liquids.
Place, publisher, year, edition, pages
2007. Vol. 53, no 4, 1837-1842 p.
ionic liquid, PYR14TFSI, electrochemical cathodic stability, reduction, environment
IdentifiersURN: urn:nbn:se:kth:diva-7981DOI: 10.1016/j.electacta.2007.08.029ISI: 000251759900058ScopusID: 2-s2.0-35548987452OAI: oai:DiVA.org:kth-7981DiVA: diva2:13178