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The impedance study of the oxidation of formic acid at a platinum electrodes

✍ Scribed by H. Matsui; M. Yasuzawa; A. Kunugi

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 263 KB
Volume: 38
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(93)80312-n

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✦ Synopsis

The oxidation of formic acid at a platinum electrode in 0.5 mol dm-j HsSO, was investigated by dc and cc methods. The oxidation rate of formic acid was approximately independent of the potential at potentials above about 0.35V vs. rhe, when the blocking effect of adsorbed carbon monoxide was compensated and the rate retardation at high surface coverages was avoided. The faradaic impedance study showed that the rate determining step was the adsorption of formic acid molecules at the above potentials.

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