1. Ethanol Electrooxidation on Pt with Lanthanum Oxide as Cocatalyst in a DAFC
- Author
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T. A. B. Santoro, A. Oliveira Neto, C. A. L. G. de O. Forbicini, M. Linardi, J. L. Rodríguez, and E. Pastor
- Subjects
Chemistry ,QD1-999 - Abstract
Electrocatalytic activity toward ethanol electrooxidation of Pt particles in PtLa/C catalysts with different Pt : La ratios has been studied with different electrochemical and spectroscopic techniques, and the results were compared to those of Pt/C catalyst. Significant enhancement in the electrocatalytic activity has been achieved by depositing the Pt particles with lanthanum oxides/hydroxides using an alcohol reduction method. Compared to Pt/C catalyst, PtLa/C materials exhibit a lower onset potential and a higher electron-transfer rate constant for the investigated reaction. These studies illustrate the possibility of utilizing Pt/C with La oxides/hidroxides as electrocatalyst for direct alcohol fuel cells (DAFCs).
- Published
- 2012
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