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In-situ IR study of adsorption and oxidation of methanol on platinum and platinised glassy carbon electrodes in sulphuric acid solution

Authors
Journal
Journal of Electroanalytical Chemistry
0022-0728
Publisher
Elsevier
Publication Date
Volume
250
Issue
1
Identifiers
DOI: 10.1016/0022-0728(88)80198-0
Disciplines
  • Design

Abstract

Abstract The nature of the adsorbates formed during the oxidation of methanol at platinum and platinum/glassy carbon electrodes in acid solution is studied in-situ using Subtractively Normalised Fourier Transform Infra-Red Spectroscopy (SNIFTIRS). The intermediate in the methanol oxidation is identified at Pt 3,COH, and it is shown that the CO ads poison that forms on bulk platinum does not form on small platinum particles adsorbed on carbon, supporting the contention that these particles poison by a different mechanism. The importance of cell design is discussed.

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