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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.)

Oscillatory electro-oxidation of glycerol on platinum

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Author(s):
Oliveira, Cristiane P. [1] ; Lussari, Natalia V. [1] ; Sitta, Elton [1] ; Varela, Hamilton [1, 2]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Chem Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[2] Ertl Ctr Electrochem & Catalysis, Kwangju 500712 - South Korea
Total Affiliations: 2
Document type: Journal article
Source: Electrochimica Acta; v. 85, p. 674-679, DEC 15 2012.
Web of Science Citations: 12
Abstract

This paper describes the experimental study of the oscillatory electro-oxidation of glycerol on platinum under galvanostatic control. The system was investigated in both acidic and alkaline media and for different glycerol concentrations. In acidic supporting electrolyte, the oscillatory behavior is rather simple and the main features such as period, amplitude and waveform are barely affected by the glycerol concentration. A more complex picture including the presence of different temporal patterns and strong dependence with glycerol concentration emerges in alkaline medium. In both media, the composite oscillations visit two clearly discernible potential windows, and potential oscillations in alkaline media are observed only when the working electrode is kept stationary. The mechanistic implications of our findings are discussed in connection with available data obtained under close-to-equilibrium conditions. (C) 2012 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 09/07629-6 - Electrocatalysis IV: fundamental and applied aspects of electrocatalytic processes, bio-electrocatalysis and kinetic instabilities
Grantee:Edson Antonio Ticianelli
Support type: Program for Research on Bioenergy (BIOEN) - Thematic Grants
FAPESP's process: 09/16449-1 - Kinetic instabilities in electrocatalysis: mechanism and spatio-temporal dynamics
Grantee:Cristiane Pontes de Oliveira
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 11/07226-9 - Mapping of the oscillatory dynamics in glycerol electrooxidation in acidic media
Grantee:Natália Lussari Vrech
Support type: Scholarships in Brazil - Scientific Initiation