Preparation, characterization and catalytic activity for CO oxidation of SiO2 hollow spheres supporting CuO catalysts

被引：26

作者：

Song, Chunyan ^{[1
]}

Wang, Chunling ^{[1
]}

Zhu, Haiyang ^{[1
]}

Wu, Xingcai ^{[1
]}

Dong, Lin ^{[1
]}

Chen, Yi ^{[1
]}

机构：

[1] Nanjing Univ, Key Lab Mesoscop Chem, MOE, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

来源：

CATALYSIS LETTERS | 2008年 / 120卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

hollow spheres; CuO/SiO2; CO oxidation; catalytic activity;

D O I：

10.1007/s10562-007-9272-9

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：

Silica hollow spheres were synthesized by sol-gel process using carbon microspheres as templates, and used as supports for CuO/SiO2 catalysts. The samples were characterized by TEM, nitrogen adsorption-desorption, XRD and TPR, and furthermore, the catalytic performance for CO oxidation was approached. The results indicated that the catalytic activity of CuO supported on SiO2 hollow spheres exhibited much higher as compared to that supported on commercial SiO2. Enhancement of the catalytic activity may be attributed to the fact that the unique hollow spherical texture should facilitate the formation of main active species and gas diffusion in catalysts.

引用

页码：215 / 220

页数：6

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