This work was supported in part by KRF (KRF-2006-005J04601), and in part by the Research Center for Energy Conversion and Storage (Contract No. R11-2002-102-00000-0). We are grateful to the Pohang Light Source (PLS) for allowing us to conduct our XAS measurements at their facility.
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Communication
Promotional Effect of Palladium on the Hydrogen Oxidation Reaction at a PtPd Alloy Electrode†
Article first published online: 29 OCT 2008
DOI: 10.1002/anie.200802749
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Issue
Angewandte Chemie International Edition
Volume 47, Issue 48, pages 9307–9310, November 17, 2008
Additional Information
How to Cite
Yoo, S., Park, H.-Y., Jeon, T.-Y., Park, I.-S., Cho, Y.-H. and Sung, Y.-E. (2008), Promotional Effect of Palladium on the Hydrogen Oxidation Reaction at a PtPd Alloy Electrode. Angew. Chem. Int. Ed., 47: 9307–9310. doi: 10.1002/anie.200802749
- †
Publication History
- Issue published online: 12 NOV 2008
- Article first published online: 29 OCT 2008
- Manuscript Revised: 31 JUL 2008
- Manuscript Received: 11 JUN 2008
Keywords:
- electrochemistry;
- fuel cells;
- hydrogen oxidation;
- palladium;
- platinum
A volcano curve is observed for the hydrogen oxidation reaction (HOR) as a function of the Pd content of alloyed PtPd electrodes. The maximum exchange current density was obtained for Pt72Pd28, and the results indicate that PdHx species (hydrogen gas spontaneously adsorbed to Pd; see picture) causes the electronic structure of Pt to be favorable for the HOR.