SECM Studies on the Electrocatalytic Oxidation of Glycerol at Copper Electrodes in Alkaline Medium

This study aims at analyzing the reaction mechanism of the electrooxidation of glycerol at copper surfaces in NaOH solutions using Scanning Electrochemical Microscopy (SECM) in the substrate generation/tip collection (SG/TC) mode. Experiments showed the dependence of the current at the tip on the di...

Full description

Saved in:
Bibliographic Details
Published inElectroanalysis (New York, N.Y.) Vol. 24; no. 8; pp. 1778 - 1782
Main Authors Dantas, L. M. F., De Souza, A. P. R., Castro, P. S., Paixão, T. R. L. C., Bertotti, M.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.08.2012
WILEY‐VCH Verlag
Subjects
ANODIZING
Biodiesel
Copper
DIFFUSION
ELECTRODES
Glycerol
Glycerols
Microelectrodes
Microscopy
SECM
Online AccessGet full text

Cover

More Information
Summary:This study aims at analyzing the reaction mechanism of the electrooxidation of glycerol at copper surfaces in NaOH solutions using Scanning Electrochemical Microscopy (SECM) in the substrate generation/tip collection (SG/TC) mode. Experiments showed the dependence of the current at the tip on the distance between generator and tip, as well as on the concentration of the NaOH solution. The current at the tip decreased significantly after addition of glycerol, as a result of the competition between diffusion of the free‐soluble Cu(III) species and its consumption during the diffusion in the solution. The determination of the analyte in a castor biodiesel sample employing a single copper microelectrode was carried out.
Bibliography:ArticleID:ELAN201200144
istex:04B8D5E5A31469042077EC69F4D8F52AEBC4BF60
ark:/67375/WNG-WRFTDLCC-1
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201200144