Preparation of Cu/ZnO/M2O3 (M = Al, Cr) Catalyst to Stabilize Cu/ZnO Catalyst in Methanol Dehydrogenation

被引：0
|
作者：
Kwang-Deog Jung
Oh-Shim Joo
机构：
[1] Korea Institute of Science and Technology Cheongryang,Eco
来源：
Catalysis Letters | 2002年 / 84卷
关键词：
methanol dehydrogenation; reduction of ZnO; solid solution; hydrotalcite precursor;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
ZnO reducibility in three component catalysts was monitored in a methanol stream by a microbalance. The ZnO in the Cu/ZnO is reduced in the methanol stream from ca 500 K, but the addition of a third component to Cu/ZnO can suppress the reduction of ZnO. The Cu/ZnO/Cr2O3 prepared from a hydrotalcite-like precursor shows high stability in methanol dehydrogenation. The high stability of Cu/ZnO/Cr2O3 is due to the stabilization of ZnO by formation of ZnCr2O4 even in the reduced condition.
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页码：21 / 25
页数：4
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