Dendrimer-encapsulated nanoparticle precursors to supported platinum catalysts

被引：251

作者：

Lang, HF ^{[1
]}

May, RA ^{[1
]}

Iversen, BL ^{[1
]}

Chandler, BD ^{[1
]}

机构：

[1] Trinity Univ, Dept Chem, Austin, TX 78712 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2003年 / 125卷 / 48期

关键词：

D O I：

10.1021/ja0364120

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this contribution, we report the successful preparation of supported metal catalysts using dendrimer-encapsulated Pt nanoparticles as metal precursors. Polyamidoamine (PAMAM) dendrimers were first used to template and stabilize Pt nanoparticles prepared in solution. These dendrimer-encapsulated nanoparticles were then deposited onto a commercial high surface area silica support and thermally activated to remove the organic dendrimer. The resulting materials are active oxidation and hydrogenation catalysts. The effects of catalyst preparation and activation on activity for toluene hydrogenation and CO oxidation catalysis are discussed.

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页码：14832 / 14836

页数：5

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