期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 34, 页码 9902-9907出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201603556
关键词
CO hydrogenation; heterogeneous catalysis; iron catalysts; olefins; sodium dopant
资金
- Natural Science Foundation of China [21473003, 21222306, 21473229, 91545121]
- 973 Project [2013CB933100]
Zn- and Na-modulated Fe catalysts were fabricated by a simple coprecipitation/washing method. Zn greatly changed the size of iron species, serving as the structural promoter, while the existence of Na on the surface of the Fe catalyst alters the electronic structure, making the catalyst very active for CO activation. Most importantly, the electronic structure of the catalyst surface suppresses the hydrogenation of double bonds and promotes desorption of products, which renders the catalyst unexpectedly reactive toward alkenes-especially C5+ alkenes (with more than 50% selectivity in hydrocarbons)-while lowering the selectivity for undesired products. This study enriches C-1 chemistry and the design of highly selective new catalysts for high-value chemicals.
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