Dynamic impedance of formic acid electrooxidation on polycrystalline palladium

R. L. Sacci, D. A. Harrington

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

The electrooxidation of formic acid on polycrystalline palladium electrodes in sulfuric acid is studied by dc voltammetry and dynamic electrochemical impedance spectroscopy. Impedance spectra with a frequency range of 5 decades with 10 points per decade, obtained with a multi-sine waveform at various scan rates are used to study the mechanism of the electrooxidation on Pd. The use of the dynamic impedance method allows for studying the active electrooxidation at varying potential and surface coverage. We also give some results showing that CO may not be the poisoning species nor present in the electrooxidation pathway.

Original languageEnglish
Title of host publicationImpedance in Electrochemistry - From Analytical Applications to Mechanistic Speculation 2
PublisherElectrochemical Society Inc.
Pages123-129
Number of pages7
Edition20
ISBN (Electronic)9781566777629
ISBN (Print)9781607681120
DOIs
StatePublished - 2009
Externally publishedYes

Publication series

NameECS Transactions
Number20
Volume19
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

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