首页|Iron-nickel alloy particles with N-doped carbon"armor"as a highly selective and long-lasting catalyst for the synthesis of N-benzylaniline molecules

Iron-nickel alloy particles with N-doped carbon"armor"as a highly selective and long-lasting catalyst for the synthesis of N-benzylaniline molecules

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A scalable strategy for the convenient and rapid preparation of nitrogen-doped carbon-coated iron-based alloy catalysts was developed.By controlling the type and amount of metal salts in the precursor,various types of nitrogen-doped carbon-coated alloy catalysts can be prepared in a targeted manner.Fe2Ni2@CN materials with small particle sizes and relatively homogeneous basic sites showed promising results in the N-alkylation reaction of benzyl alcohol with aniline(optimum yield:99％).It is worth noting that the catalyst can also be magnetically separated and recovered after the reaction,and its performance can be regenerated through simple calcination.Furthermore,it was confirmed by kinetic experiments that the activation of C-H at the benzyl alcohol benzylic position is the rate-determining step(RDS).According to density flooding theory calculations,Fe2Ni2@CN catalysts require less energy than other materials(Fe@CN and Ni@CN)for the RDS(dehydrogenation reaction)process.Therefore N-alkylation reactions are more easily carried out on Fe2Ni2@CN catalysts,which may be the reason for the best catalytic activity of Fe-Ni alloy materials.These carbon-coated alloy materials will show great potential in more types of heterogeneous catalysis.

iron-nickel alloy catalystN-alkylation reactionmagnetic separationreaction pathdehydrogenation reaction

Gang Wang、Longchao Sun、Wanyi Liu、Haijuan Zhan、Shuxian Bi

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College of Chemistry and Chemical Engineering,Ningxia University,Yinchuan 750021,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Ningxia ProvinceNatural Science Foundation of Ningxia Province

22162021218620132021AAC030572023AAC03015

2024

10.1007/s12274-023-6041-z

纳米研究(英文版)

纳米研究(英文版)

CSTPCD
ISSN：
年,卷(期)：2024.17(4)
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