Catalytic CO oxidation reaction studies on lithographically fabricated platinum nanowire arrays with different oxide supports

被引：20

作者：

Contreras, A. M. ^{[1
]}

Yan, X. -M.

Kwon, S.

Bokor, J.

Somorjai, G. A.

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Mat & Chem Div, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA

[4] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

来源：

CATALYSIS LETTERS | 2006年 / 111卷 / 1-2期

关键词：

CO oxidation; platinum nanowires; model catalysis;

D O I：

10.1007/s10562-006-0123-x

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：

Deep-ultraviolet lithography has been coupled with size-reduction and nanoimprint lithography to create high-density arrays of 20-nm wide platinum nanowires supported on oxide thin films of silica, alumina, zirconia, and ceria. These nanowire arrays have been used as two-dimensional platinum model catalyst systems to study the effects of support on catalytic activity during the catalytic oxidation of carbon monoxide. Strong support dependence is seen for both reaction turnover frequency and the measured activation energy. In addition, the stability of the nanowire arrays under reaction conditions shows support dependence.

引用

页码：5 / 13

页数：9

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