期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 138, 期 42, 页码 13810-13813出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b08668
关键词
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资金
- U.S. Department of Energy, Office of Science and Office of Basic Energy Sciences [DE-SC0012704]
- INTEVEP
- BID
- National High Technology Research and Development Program of China [2013AA051201]
- National Natural Science Foundation of China [21336006]
- Natural Science Foundation of China [21306125]
An inverse CeO2/Cu2O/Cu(111) catalyst is able to activate methane at room temperature producing C, CHx fragments and COx species on the oxide surface. The addition of water to the system leads to a drastic change in the selectivity of methane activation yielding only adsorbed CHx fragments. At a temperature of 450 K, in the presence of water, a CH4 -> CH3OH catalytic transformation occurs with a high selectivity. OH groups formed by the dissociation of water saturate the catalyst surface, removing sites that could decompose CHx fragments, and generating centers on which methane can directly interact to yield methanol.
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