1. Fe/Fe3C Encapsulated in N-Doped Carbon Tubes: A Recyclable Catalyst for Hydrogenation with High Selectivity
- Author
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Xiao Lv, Wanjiao Ma, Suna Wang, Zhang Shi, Tian Sheng, Liu Shoujie, and Ruirui Yun
- Subjects
010405 organic chemistry ,Inorganic chemistry ,chemistry.chemical_element ,010402 general chemistry ,01 natural sciences ,0104 chemical sciences ,Catalysis ,Inorganic Chemistry ,Nitrobenzene ,chemistry.chemical_compound ,Aniline ,chemistry ,Nitro ,Physical and Theoretical Chemistry ,Chemoselectivity ,Melamine ,Pyrolysis ,Carbon - Abstract
Herein, a series of Fe-based catalysts have been designed and prepared by grinding a mixture of MIL-88d and melamine, and then the mixture was followed by pyrolysis. An unusual Fe/Fe3C-activated site is uniformly encapsulated in the N-doped carbon tubes obtained by pyrolysis of the film-like nanocrystals of MIL-88d. Experimental characterizations and theoretical calculations demonstrate that the surface N sites can effectively trap the nitrobenzene and aniline by their phenyl groups with the formation of three C–N bonds that made the catalyst exhibit excellent catalytic activity (turnover frequencies of ≤11268 h–1 calculated on the basis of nitrobenzene) and chemoselectivity for the reduction of nitro derivatives under facile conditions.
- Published
- 2019