Silver catalysts supported over activated carbons for the selective oxidation of CO in excess hydrogen: effects of different treatments on the supports

被引：13

作者：

Chen, Limin ^{[1
]}

Ma, Ding ^{[1
]}

Li, Xiaoyun ^{[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 | 2006年 / 111卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

CO selective oxidation; activated carbon; textural properties; surface functional groups;

D O I：

10.1007/s10562-006-0139-2

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：

Commercial activated carbon (AC) was used as a support either in its original form or after various modifications, giving diverse textural and surface chemical characteristics. The changes of these properties were monitored by N-2 adsorption-desorption isotherms, temperature programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS). Ag catalysts were prepared over the AC supports by a conventional wet impregnation method. The catalytic performances of supported Ag/AC catalysts in the selective oxidation of CO in excess H-2 were tested. The results indicate the textural and surface chemical characteristics are responsible for the different catalytic performances.

引用

页码：133 / 139

页数：7

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