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Large-scale preparation of B/N co-doped graphene-like carbon as an efficient metal-free catalyst for reduction of nitroarenes

Abstract

Boron and nitrogen co-doped graphene-like carbon (BNG) as metal-free catalysts are synthesized by combining with ball-milling and thermal treatment. Firstly, the edge-selectively functionalized graphene nanoplatelets (EFGnPs) were prepared through ball milling of the pristine graphite, which can facilitate the boron incorporation. The BNG catalysts with high content of boron and nitrogen are obtained by pyrolysis the mixture of EFGnPs and boric acid. It is found that the reduction of nitroarenes can be catalyzed by using a low BNG loading and a small amount of N2H4 in ethanol with high yield. It is worth noting that the type of boron species in the BNG catalyst has an important effect on the reduction reaction that the catalyst containing the most B/N shows the highest catalytic activity during reduction of nitroarenes, indicating that the doped B/N in BNG is one of the key active sites in impelling this reaction. Moreover, the BNG catalyst can be used for six times and no dehalogenation phenomenon occurs during the reduction process for halogen-substituted nitroarenes in contrast to conventional metal catalysts.

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Publication details

The article was received on 30 Oct 2017, accepted on 08 Jan 2018 and first published on 10 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ04187J
Citation: New J. Chem., 2018, Accepted Manuscript
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    Large-scale preparation of B/N co-doped graphene-like carbon as an efficient metal-free catalyst for reduction of nitroarenes

    F. Yang, Y. Cao, Z. Chen, X. He, L. Hou and Y. Li, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ04187J

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