One-pot encapsulation of Pt nanoparticles into the mesochannels of SBA-15 and their catalytic dehydrogenation of methylcyclohexane

被引：39

作者：

Chen, Aibing ^{[1
]}

Zhang, Weiping ^{[1
]}

Li, Xiaoyun ^{[1
]}

Tan, Dali ^{[1
]}

Han, Xiuwen ^{[1
]}

Bao, Xinhe ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

来源：

CATALYSIS LETTERS | 2007年 / 119卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Pt Nanoparticles; Co-assembly; SBA-15; methylcyclohexane; catalytic dehydrogenation;

D O I：

10.1007/s10562-007-9214-6

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：

Highly dispersed Pt nanoparticles have been confined in the mesochannels of SBA-15 silica by a simple "one-pot" co-assembly method. Metallic Pt can be encapsulated in the mesochannels by changing the amount of Pt ions in the starting materials. The catalytic performances of Pt-SBA-15 were evaluated for methylcyclohexane dehydrogenation. Compared with conventional supported Pt-SiO2 catalysts, the Pt-SBA-15 catalysts show higher stability. TEM studies show that the confinement effect of ordered mesochannels of SBA-15 may restrict the further growth of Pt nanoparticles during the reaction.

引用

页码：159 / 164

页数：6

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