Chinese Journal of Catalysis ›› 2014, Vol. 35 ›› Issue (3): 286-293.DOI: 10.1016/S1872-2067(14)60015-2

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Ni-Mo nitride catalysts:Synthesis and application in the ammoxidation of propane

Xiaoqiang Fana, Huimin Zhangb, Jianmei Lia, Zhen Zhaoa, Chunming Xua, Jian Liua, Aijun Duana, Guiyuan Jianga, Yuechang Weia   

  1. a State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;
    b Department of CTL and Chemicals, Shenhua Group Corporation Ltd, Beijing 100011, China
  • Received:2013-11-03 Revised:2013-12-27 Online:2014-02-26 Published:2014-02-26
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21073235, 21173270, 21177160), the National High Technology Research and Development Program of China (863 Program, 2013AA065302F), and China University of Petroleum Fund (LLYJ-2011-39 and KYJJ2012-06-31).


Five different methods were used to prepare the Ni-Mo oxide precursors including sol-gel, rotary evaporation-microwave drying, co-precipitation, impregnation, and mechanical mixing. Ni-Mo nitride catalysts have been synthesized by temperature-programmed nitration of the oxide precursors in a flow of H2 and N2. The structure and physico-chemical properties of the Ni-Mo oxide precursors and their corresponding nitride catalysts were determined by X-ray diffraction, total nitrogen content analysis, X-ray photoelectron spectroscopy and H2 temperature-programmed reduction, and their catalytic performance for propane ammoxidation was also tested. The catalytic activity and selectivity towards the formation of acrylonitrile over the Ni-Mo nitride catalysts are strongly dependent on the preparation methods for the oxide precursors. The N species in the Ni-Mo nitrides and their mobility and reactivity affect the selectivity for acrylonitrile. The Ni-Mo nitride prepared by co-precipitation, with the largest amount and more reactive N species, exhibited the highest catalytic activity and selectivity for acrylonitrile.

Key words: Nickle-molybdenum nitride, Propane ammoxidation, Acrylonitrile, Preparation method, Nitrogen species