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The influence of air and its components on the cathodic stability of N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide

TitoloThe influence of air and its components on the cathodic stability of N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2007
AutoriRandström, S., Appetecchi Giovanni Battista, Lagergren C., Moreno A., and Passerini S.
RivistaElectrochimica Acta
Volume53
Paginazione1837-1842
ISSN00134686
Parole chiaveArgon flow, Cathodes, Electrochemical window, Environmental engineering, Inert gases, Ionic liquids, Nitrogen, Reduction, vacuum, Water
Abstract

Although water- and air-stable ionic liquids have been in use for some years, experiments found in the literature are still performed 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. © 2007 Elsevier Ltd. All rights reserved.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-35548987452&doi=10.1016%2fj.electacta.2007.08.029&partnerID=40&md5=c0a2bc08026d74c4f90b6a6b02393911
DOI10.1016/j.electacta.2007.08.029
Citation KeyRandström20071837