CHARACTERIZATION OF SILICA-SUPPORTED COPPER-CATALYSTS BY MEANS OF TEMPERATURE-PROGRAMMED REDUCTION

被引：119
|
作者：
VANDERGRIFT, CJG
MULDER, A
GEUS, JW
机构：
[1] Department of Inorganic Chemistry, University of Utrecht, 3522 AD Utrecht
来源：
APPLIED CATALYSIS | 1990年 / 60卷 / 01期
关键词：
catalyst characterization (TPR); catalyst preparation (several techniques); co-precipitation; copper/silica; impregnation; ion exchange;
D O I：
10.1016/S0166-9834(00)82181-8
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：
The effect of the preparation procedure on the reduction behavior of silica-supported copper catalysts was studied. The reduction process was monitored by measurement of the hydrogen consumption during temperature-programmed reduction (TPR). The catalysts were prepared by a variety of methods, viz. impregnation, ion-exchange, homogeneous deposition-precipitation, and co-precipitation. The results show that the reduction behavior of the catalysts strongly depends on the preparation method as well as on the thermal pretreatment. Comparison of the TPR profiles of the catalysts with results obtained on mineral copper hydrosilicates and bulk copper oxide facilitated identification of the copper precursor species present in the catalysts. © 1990.
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页码：181 / 192
页数：12
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