Nanostructured platinum/iron phosphate thin-film electrodes for methanol oxidation

被引：31

作者：

Lee, Byungjoo ^{[1
]}

Kim, Chunjoong ^{[1
]}

Park, Yejun ^{[1
]}

Kim, Tae-Gon ^{[1
]}

Park, Byungwoo ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151744, South Korea

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2006年 / 9卷 / 10期

关键词：

D O I：

10.1149/1.2256688

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanostructured Pt-FePO4 thin-film electrodes consisting of Pt nanocrystals and amorphous FePO4 were fabricated by cosputtering, and nanocomposites containing similar to 3 or similar to 5 nm Pt crystalline phases were obtained. Compared with the pure Pt electrodes, the Pt-FePO4 electrodes containing similar to 3 nm Pt nanophases showed a significantly high efficiency, stability, and low charge-transfer resistance for methanol oxidation. The improved catalytic activities of the Pt-FePO4 thin-film electrodes can be attributed to both an increase in the active surface area, and the possible ability of FePO4 for the effective transfer of protons and the CO oxidation during methanol oxidation. (c) 2006 The Electrochemical Society.

引用

页码：E27 / E30

页数：4

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