Preparation of PtSn/C electrocatalysts by an alcohol-reduction process using different conditions for ethanol electro-oxidation

V. A. Ribeiro, R. C. Sekol, A. D. Taylor, A. Oliveira Neto, E. V. Spinacé

Research output: Contribution to journalArticle

Abstract

PtSn/C electrocatalysts were prepared by an alcohol-reduction process using Pt(C5H7O2)2 and SnCl 4•5H2O as metal precursors, a mixture of ethylene glycol:water as both a solvent and reducing agent and Carbon Vulcan XC72 as support. The electrocatalysts were prepared with 20 wt% of metal content and Pt:Sn atomic ratio of 50:50 using different conditions: under reflux (RFX) at 160°C for 3 h and in an autoclave (ATC) at 200°C under autogeneous pressure for 30 min. The obtained PtSn/C electrocatalysts were characterized by X-ray diffraction and cyclic voltammetry. The electro-oxidation of ethanol was evaluated by chronoamperometry in acid medium. A similar performance was observed for commercial PtSn/C BASF and PtSn/C RFX while PtSn/C ATC showed a superior performance.

Original languageEnglish (US)
Pages (from-to)141-145
Number of pages5
JournalECS Transactions
Volume58
Issue number25
DOIs
StatePublished - 2013

ASJC Scopus subject areas

  • Engineering(all)

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