An in-situ Raman study of the oxygen reduction reaction in ionic liquids
An in-situ Raman study of the oxygen reduction reaction in ionic liquids
In-situ Raman spectroscopy is applied, for the first time, to elucidate the reaction products of oxygen reduction in two types of ionic liquids: 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (C2mimTFSI) and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (Pyr14TFSI). The degradation of C2mimTFSI by superoxide attack is evidenced by the appearance of bands characteristic of amide and carbonate compounds. On the contrary, Pyr14TFSI is found to be resistant towards degradation. It is observed that superoxide is the first product of oxygen reduction in Pyr14TFSI, and the formation of Li2O2 is observed at longer times
33-35
Frith, James T.
349b19de-36a7-4136-9f2d-af8160311d38
Russell, Andrea E.
b6b7c748-efc1-4d5d-8a7a-8e4b69396169
Garcia-Araez, Nuria
9358a0f9-309c-495e-b6bf-da985ad81c37
Owen, John R.
067986ea-f3f3-4a83-bc87-7387cc5ac85d
September 2014
Frith, James T.
349b19de-36a7-4136-9f2d-af8160311d38
Russell, Andrea E.
b6b7c748-efc1-4d5d-8a7a-8e4b69396169
Garcia-Araez, Nuria
9358a0f9-309c-495e-b6bf-da985ad81c37
Owen, John R.
067986ea-f3f3-4a83-bc87-7387cc5ac85d
Frith, James T., Russell, Andrea E., Garcia-Araez, Nuria and Owen, John R.
(2014)
An in-situ Raman study of the oxygen reduction reaction in ionic liquids.
Electrochemistry Communications, 46, .
(doi:10.1016/j.elecom.2014.06.001).
Abstract
In-situ Raman spectroscopy is applied, for the first time, to elucidate the reaction products of oxygen reduction in two types of ionic liquids: 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (C2mimTFSI) and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (Pyr14TFSI). The degradation of C2mimTFSI by superoxide attack is evidenced by the appearance of bands characteristic of amide and carbonate compounds. On the contrary, Pyr14TFSI is found to be resistant towards degradation. It is observed that superoxide is the first product of oxygen reduction in Pyr14TFSI, and the formation of Li2O2 is observed at longer times
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Accepted/In Press date: 2 June 2014
e-pub ahead of print date: 9 June 2014
Published date: September 2014
Organisations:
Electrochemistry
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Local EPrints ID: 371757
URI: http://eprints.soton.ac.uk/id/eprint/371757
ISSN: 1388-2481
PURE UUID: 8bbb9a97-58b2-4be7-a1b7-963eaf035d36
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Date deposited: 14 Nov 2014 14:38
Last modified: 15 Mar 2024 03:46
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Author:
James T. Frith
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