化学
铜
催化作用
程序升温还原
降水
无机化学
氢
有机化学
物理
气象学
作者
C.J.G. van der Grift,A. Mulder,J.W. Geus
出处
期刊:Applied Catalysis
[Elsevier]
日期:1990-01-01
卷期号:60 (1): 181-192
被引量:111
标识
DOI:10.1016/s0166-9834(00)82181-8
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.
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