Origin of the enhanced catalytic activity of carbon nanocoil-supported PtRu alloy electrocatalysts

被引：176

作者：

Park, KW ^{[1
]}

Sung, YE ^{[1
]}

Han, S ^{[1
]}

Yun, Y ^{[1
]}

Hyeon, T ^{[1
]}

机构：

[1] Kwangju Inst Sci & Technol, Dept Mat Sci & Engn, Kwangju 500712, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 03期

关键词：

D O I：

10.1021/jp0368031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The origin of the excellent electrocatalytic performance of PtRu alloy catalysts supported on newly synthesized carbon nanocoil supports was investigated. Among three commercially available carbon materials-Vulcan XC-72, multiwall carbon nanotube, and activated carbon, the Vulcan XC-72-supported catalyst exhibited the best catalytic performance. Carbon nanocoils with variable surface areas and crystallinity were employed as the supports for 60 wt % Pt/Ru (1:1) catalysts. The catalysts supported on all these three carbon nanocoils exhibited better electrocatalytic performance compared to the catalyst supported on Vulcan XC-72 carbon. In particular, the PtRu alloy catalyst supported on CNC-2, which has both good crystallinity and a large surface area, showed a superior electrocatalytic performance, compared to the catalysts supported on CNC-1 and CNC-3 carbons.

引用

页码：939 / 944

页数：6

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