An electrochemical study of the oxidation of hydrogen at platinum electrodes in several room temperature ionic liquids

D.S. Silvester, Leigh Aldous, Christopher Hardacre, R.G. Compton

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

The electrochemical oxidation of dissolved hydrogen gas has been studied in a range of room-temperature ionic liquids (RTILs), namely [C(2)mim][NTf2], [C(4)mim][NTf2], [N-6,N-2,N-2,N-2][NTf2], [P-14,P-6,P-6,P-6][NTf2], [C(4)mpyrr][NTf2], [C(4)mim][BF4], [C(4)mim][PF6], [C(4)mim][OTf], and [C(6)mim]Cl on a platinum microdisk electrode of diameter 10 mu m. In all cases, except [C(6)mim]Cl, a broad quasi-electrochemically reversible oxidation peak between 0.3 to 1.3 V vs Ag was seen prior to electrode activation ([C(6)mim]Cl showed an almost irreversible wave). When the electrode was pre-anodized (
Original languageEnglish
Pages (from-to)5000-5007
Number of pages8
JournalJournal of Physical Chemistry B
Volume111 (18)
Issue number18
DOIs
Publication statusPublished - 10 Feb 2007

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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