A new method for the synthesis of highly dispersive and catalytically active platinum nanoparticles confined in mesoporous zirconia

被引：62

作者：

Chen, HR ^{[1
]}

Shi, JL ^{[1
]}

Li, YS ^{[1
]}

Yan, JN ^{[1
]}

Hua, ZL ^{[1
]}

Chen, HG ^{[1
]}

Yan, DS ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

ADVANCED MATERIALS | 2003年 / 15卷 / 13期

关键词：

D O I：

10.1002/adma.200304973

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pure metallic platinum nanocrystallites with uniform diameter, confined in the pore channels of mesoporous zirconia, have been synthesized by a new ion-exchange reaction followed by in-situ reduction. Such a nanostructured platinum-zirconia mesoporous composite material is demonstrated to be an efficient catalyst for the oxidation of CO. Incorporation of ceria into the zirconia walls is shown to lead to a material with promise as a high-performance exhaust-conversion catalyst with immediate activation of the catalyst on engine start-up.

引用

页码：1078 / +

页数：5

共 18 条

[1] Water-soluble platinum and palladium nanoparticles modified with thiolated β-cyclodextrin [J].