Ambient temperature CO oxidation using copper manganese oxide catalysts prepared by coprecipitation: Effect of ageing on catalyst performance

被引：79

作者：

Hutchings, GJ ^{[1
]}

Mirzaei, AA ^{[1
]}

Joyner, RW ^{[1
]}

Siddiqui, MRH ^{[1
]}

Taylor, SH ^{[1
]}

机构：

[1] UNIV NOTTINGHAM,DEPT CHEM,CATALYSIS RES CTR,NOTTINGHAM NG11 7NS,ENGLAND

来源：

CATALYSIS LETTERS | 1996年 / 42卷 / 1-2期

关键词：

catalyst preparation; coprecipitation; effect of ageing; copper manganese oxide; CO oxidation;

D O I：

10.1007/BF00814462

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：

Copper manganese oxides are prepared using a coprecipitation procedure and studied for the oxidation of CO at ambient temperature. In particular, the effect of the ageing time, i.e. the time that the precipitate remains in contact with the precipitating medium, is investigated. It is shown that this parameter is of crucial importance in controlling the catalytic performance and that catalysts which are aged for less than or equal to 30 min or greater than or equal to 300 min give the best performance. Preliminary characterisation using powder X-ray diffraction indicates that a combination between CuO and copper manganese oxide may be responsible for the enhanced activity observed with these samples.

引用

页码：21 / 24

页数：4

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