Synthesis and characterization of ordered intermetallic PtPb nanorods

被引：150

作者：

Maksimuk, Sean ^{[1
]}

Yang, Shengchun ^{[1
]}

Peng, Zhenmeng ^{[1
]}

Yang, Hong ^{[1
]}

机构：

[1] Univ Rochester, Dept Chem Engn, Rochester, NY 14627 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 28期

关键词：

D O I：

10.1021/ja071980r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have demonstrated the synthesis of ordered intermetallic PtPb nanorods by simultaneously reducing platinum acetylacetonate and lead acetylacetonate with a tert-butylamine-borane complex in a mixture of diphenyl ether, adamantanecarboxylic acid, hexadecanethiol, and hexadecylamine. The formation of rodlike morphology is attributed to the preferable incorporation of Pt and Pb adatoms onto sites with high-coordination numbers of the growing low-index surfaces based on a Kossel crystal analysis. These PtPb nanorods can be deposited onto carbon black and show high-catalytic properties toward methanol oxidation. The current mass density of this PtPb/C catalyst is above 700 mA mg(-1) Pt, which is significantly higher than that of a commercial PtRu/C catalyst.

引用

页码：8684 / +

页数：3

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