Journal
CURRENT APPLIED PHYSICS
Volume 11, Issue 4, Pages S2-S5Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cap.2011.07.005
Keywords
Methanol oxidation; Electrocatalyst; Platinum; Metal-phosphate
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Nanostructured Pt/CePO(4) thin-film electrodes consisting of the Pt nanocrystallites and amorphous CePO(4) were synthesized by sputtering, and the enhanced electrooxidation properties of methanol were investigated. Compared to a bare Pt electrocatalyst, the Pt/CePO(4) nanocomposites exhibited remarkably higher activities. The improved catalytic activities were observed even after normalization by the electrochemical surface area. This can be explained by both the bi-functional effect of CePO(4) and the modified electronic structure of Pt by the charge transfer from CePO(4) to Pt. (C) 2011 Elsevier B.V. All rights reserved.
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