期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 32, 页码 10197-10201出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201805609
关键词
aluminum; C-C bonds; methanol conversion; solid-state NMR; zeolites
资金
- National Natural Science Foundation of China [21622311, 21473245, 21603265, 21733013, 21773296]
- key program for frontier science of the Chinese Academy of Sciences [QYZDB-SSW-SLH027]
Surface methoxy species bound to an extra-framework Al (SMS-EFAL) was unambiguously identified by advanced C-13-{Al-27} double-resonance solid-state NMR technique in the methanol-to-olefins reaction on H-ZSM-5 zeolite. The high reactivity of the SMS-EFAL leads to the formation of surface ethoxy species and ethanol as the key intermediates for ethene generation in the early reaction stage. A direct route for the initial C-C bond formation in ethene was proposed and corroborated by density functional theory calculations.
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