Mechanistic approach to the oxidation of phenol at a platinum/gold electrode in an acid medium

Autor:	P.I. Iotov, S. V. Kalcheva
Rok vydání:	1998
Předmět:	Aqueous solution General Chemical Engineering Inorganic chemistry Oxide chemistry.chemical_element Electrocatalyst Electrochemistry Analytical Chemistry chemistry.chemical_compound chemistry Electrode Phenol Cyclic voltammetry Platinum
Zdroj:	Journal of Electroanalytical Chemistry. 442:19-26
ISSN:	1572-6657
Popis:	The electrochemical oxidation of phenol was investigated at a platinum/gold (60/40 at.%) alloy electrode in a 0.5 M H2SO4 aqueous solution at 308.7 K by cyclic voltammetry. Comparative studies were carried out by using platinum and gold electrodes under similar experimental conditions. A tentative mechanism on the electrochemical oxidation of phenol at Pt, Au and Pt/Au electrodes is proposed. It is based on the incipient hydrous oxide adatom mediator model of electrocatalysis and generalizes the behaviour of all electrodes studied in the oxidation of phenol. The advantage of the alloy catalyst is due to the more effective removal of the surface fouling which is attributed to the presence of an α2-phase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d2e6b5fc9489fd37ffca1de0be8f6714 https://doi.org/10.1016/s0022-0728(97)00455-5 Zobrazit plný text záznamu Full Text from ScienceDirect