Titania-supported PdAu bimetallic catalysts prepared from dendrimer-encapsulated nanoparticle precursors

被引：204

作者：

Scott, RWJ ^{[1
]}

Sivadinarayana, C ^{[1
]}

Wilson, OM ^{[1
]}

Yan, Z ^{[1
]}

Goodman, DW ^{[1
]}

Crooks, RM ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 05期

关键词：

D O I：

10.1021/ja044446h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the synthesis, characterization, and catalytic activity of titania-supported bimetallic PdAu particles prepared using dendrimer-encapsulated nanoparticle (DEN) precursors. Single-particle energy-dispersive spectroscopy indicates a homogeneous distribution of bimetallic nanoparticles having compositions closely related to the metal-ion ratios used to prepare the DEN precursors. The catalytic activity of the supported PdAu catalysts was compared to that of supported Pd-only and Au-only catalysts; the enhanced CO oxidation activity of the PdAu catalysts is indicative of a synergetic bimetallic interaction. Copyright © 2005 American Chemical Society.

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页码：1380 / 1381

页数：2

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