Chinese Journal of Catalysis ›› 2015, Vol. 36 ›› Issue (2): 160-167.DOI: 10.1016/S1872-2067(14)60254-0

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Supported Au-Ni nano-alloy catalysts for the chemoselective hydrogenation of nitroarenes

Haisheng Weia,b, Xing Weia, Xiaofeng Yanga, Guangzhao Yinc, Aiqin Wanga, Xiaoyan Liua, Yanqiang Huanga, Tao Zhanga   

  1. a State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b University of Chinese Academy of Sciences, Beijing 100049, China;
    c School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2014-09-27 Revised:2014-11-03 Online:2015-01-21 Published:2015-01-21
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21176235, 21203182, 21202163, 21303194, and 21373206) and the Hundred Talents Program of Dalian Institute of Chemical Physics, Chinese Academy of Sciences.

Abstract:

A modified two-step approach was developed for the synthesis of uniform and highly dispersed Au-Ni alloy nanoparticles on a silica support. The supported Au-Ni alloy nanoparticles were investigated for the chemoselective hydrogenation of substituted nitroarenes, which showed a strong synergistic effect between Au and Ni. The best catalyst was AuNi3/SiO2 that afforded a selectivity to 3-vinylaniline of 93.0% at a 3-nitrostyrene conversion of 90.8% after 70 min under mild conditions.

Key words: Gold-nickel, Alloy, Chemoselective hydrogenation, Nitroarenes