Preparation of PtSn/C Electrocatalyst by Successive Reduction for Ethanol Electro-Oxidation

PtSn/C electrocatalyst was prepared in two steps: i) initially SnCl2.2H2O was reduced on the carbon support using sodium borohydride as reducing agent. At the second step the obtained Sn/C was used as support and H2PtCl6.6H2O was reduced by an alcohol-reduction process. The obtained PtSn/C electroca...

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Bibliographic Details
Published inECS transactions Vol. 43; no. 1; pp. 339 - 344
Main Authors Ribeiro, Vilmaria A., Neto, Almir O., Linardi, Marcelo, Spinacé, Estevam V.
Format Journal Article
LanguageEnglish
Published The Electrochemical Society, Inc 23.04.2012
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Summary:PtSn/C electrocatalyst was prepared in two steps: i) initially SnCl2.2H2O was reduced on the carbon support using sodium borohydride as reducing agent. At the second step the obtained Sn/C was used as support and H2PtCl6.6H2O was reduced by an alcohol-reduction process. The obtained PtSn/C electrocatalyst was characterized by X-ray diffraction and cyclic voltammetry. The electro-oxidation of ethanol was studied by chronoamperometry. The commercial electrocatalyst PtSn/C BASF (PtSn alloy) was used for comparison. The results showed that the PtSn/C electrocatalyst prepared by successive reduction was more active for ethanol electro-oxidation than the commercial PtSn/C BASF electrocatalyst.
ISSN:1938-5862
1938-6737
DOI:10.1149/1.4704976