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Issue 4, 2014
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Facile route fabrication of nickel based mesoporous carbons with high catalytic performance towards 4-nitrophenol reduction

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Abstract

Novel nickel based mesoporous carbons are firstly in situ fabricated via pyrolysis of CTAB-chitosan-nickel supramolecular aggregates, which are pre-constructed by CTAB-directed self-assembly of 8-quinolinol modified chitosan and nickel acetate under basic conditions. This facile route fabrication method renders smart and homogeneously dispersed Ni nanoparticles (NPs) on the mesoporous carbonaceous framework without using any stabilizer and additional reductant, verified by high-energy X-ray diffraction, TEM, X-ray absorption fine structure, N2 adsorption/desorption and Raman spectroscopy. Moreover, it is found that the morphology of Ni NPs, the textural property of carbonaceous supports, and the corresponding catalytic performance towards 4-nitrophenol reduction vary with the pyrolysis temperature. It is suggested that the nickel based mesoporous carbon pyrolyzed at 750 °C (Ni/MC-750) simultaneously possessing uniform spherical Ni NPs (24.5 nm) and bottle-neck mesopores exhibits the largest activity factor of 20.9 s−1 g−1 of any nickel catalysts.

Graphical abstract: Facile route fabrication of nickel based mesoporous carbons with high catalytic performance towards 4-nitrophenol reduction

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Publication details

The article was received on 13 Oct 2013, accepted on 08 Jan 2014 and first published on 09 Jan 2014


Article type: Paper
DOI: 10.1039/C3GC42121J
Citation: Green Chem., 2014,16, 2273-2280
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    Facile route fabrication of nickel based mesoporous carbons with high catalytic performance towards 4-nitrophenol reduction

    Y. Yang, Y. Ren, C. Sun and S. Hao, Green Chem., 2014, 16, 2273
    DOI: 10.1039/C3GC42121J

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