Chinese Journal of Catalysis ›› 2009, Vol. 30 ›› Issue (6): 537-542.

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Reduction Performance and Mechanism of Ba-Doped Nano-magnesia-Sup-ported Ru Catalysts for Ammonia Synthesis

HUO Chao*, XIA Qinghua, LUO Yan, YANG Xiazhen, LIU Huazhang   

  1. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China
  • Received:2009-06-25 Online:2009-06-25 Published:2013-03-22

Abstract: The Ru/Ba-MgO and Ru/La-Ba-MgO catalysts were reduced due to the BaO acting as the most activate form. The effect of reduction conditions on the catalytic performance of the ruthenium catalysts was studied by a heating-holding-heating reduction program, and the reduction mechanism of ruthenium catalysts under hydrogen atmosphere was discussed.

Key words: barium, nano-magnesia, ruthenium, supported catalyst, ammonia synthesis, reduction performance, coupling reaction