One-step synthesis of palladium/SBA-15 nanocomposites and its catalytic application

被引：96

作者：

Han, Peng

Wang, Xiaomei

Qiu, Xuepeng

Ji, Xiangling

Gao, Lianxun

机构：

[1] Chinese Acad Sci, Grad Sch, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, Lab Polymer Engn, Changchun 130022, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2007年 / 272卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

mesoporous SBA-15; palladium nanoparticles; Suzuki coupling reaction; heck coupling reaction;

D O I：

10.1016/j.molcata.2007.03.006

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：

Well-dispersed palladium nanoparticles in mesoporous SBA- 15 SiO2 were prepared in a facile one-step approach during sol-gel route under reductive atmosphere. X-ray diffraction (XRD) results indicate that as-synthesized nanocomposites basically remain ordered two-dimensional hexagonal mesostructure while transmission electron microscopy (TEM) study exhibits a well dispersion of palladium nanoparticles within the mesoporous SBA-15 channels. The size of Pd nanoparticles is approximately in the range of 5-10nm. However, the resulting nanocomposites exhibit a highly catalytic activity and reused ability at least after five recycles without ligand in air for both the Suzuki and Heck coupling reactions. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：136 / 141

页数：6

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