Selective oxidation of methane by the bis(μ-oxo)dicopper core stabilized on ZSM-5 and mordenite zeolites

被引:672
作者
Groothaert, MH [1 ]
Smeets, PJ [1 ]
Sels, BF [1 ]
Jacobs, PA [1 ]
Schoonheydt, RA [1 ]
机构
[1] Katholieke Univ Leuven, Ctr Surface Chem & Catalysis, B-3001 Louvain, Belgium
关键词
D O I
10.1021/ja047158u
中图分类号
O6 [化学];
学科分类号
0703 [化学];
摘要
This work reports on the capability of the O2-activated Cu-ZSM-5 and Cu-MOR zeolites to selectively convert methane into methanol at a temperature of 398 K. A strong correlation between (i) the activity and (ii) the intensity of the 22700 cm-1 UV-vis band, assigned to the bis(μ-oxo)dicopper core, is found (i) as a function of the reaction temperature, (ii) as a function of the Cu loading of the zeolite, and (iii) in comparison to other Cu materials. These three lines of evidence firmly support the key role of the bis(μ-oxo)dicopper core in this selective, low-temperature hydroxylation of methane. Copyright © 2005 American Chemical Society.
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收藏
页码:1394 / 1395
页数:2
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