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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

High Order Cyclic Voltammograms During Electrooxidation of Ethanol Catalyzed by Gold

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Author(s):
da Silva, Kaline N. ; Maruyama, Suelen T. ; Sitta, Elton
Total Authors: 3
Document type: Journal article
Source: Journal of the Brazilian Chemical Society; v. 28, n. 9, p. 1725-1731, SEP 2017.
Web of Science Citations: 0
Abstract

Under fixed limits, potential sweeps in some electrochemical systems depict current profile whose shape repeats in every n cycle (with n > 1), receiving the name of high order voltammograms (HOV). HOV have been observed during electrooxidation of organic molecules catalyzed mainly by Pt. The present study shows HOV behavior during ethanol electrooxidation reaction onto gold in alkaline media. Firstly, a strong dependence of HOV with minimum potential is remarkable in this system and has not been considered in previous numeric models. Moreover, due to high sensibility of HOV to surface conditions, it was possible to follow effects caused by cation interactions with adsorbed oxygenated species. (AU)

FAPESP's process: 14/23916-3 - Instabilities in electrocatalysis: complex kinetics catalyzed by model Pt surfaces, Au and microelectrodes
Grantee:Elton Fabiano Sitta
Support Opportunities: Regular Research Grants