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Citation: Wang Yufu, Liu Zhongfan, He Jixian, Wu Yue. ACTIVE STRUCTURE AND CATALYTICAL ROLE OF CO SHIFT CATALYSTS IN AMMONM SYNTHESIS[J]. Chinese Journal of Applied Chemistry, ;1985, 2(2): 7-11. shu

ACTIVE STRUCTURE AND CATALYTICAL ROLE OF CO SHIFT CATALYSTS IN AMMONM SYNTHESIS

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Received Date: 25 April 1985
Available Online: 27 October 1985

By means of x-ray diffraction analysis and Mossbauer spectroscopy study it has been confirmed that the catalytically active structure of the B104 CO shift catalyst containing about 7-9% Cr consists of non-stoichiometric magn etite and iron-chromium solid solution. It appears that the iron ions in the B site of the magnetite play more important role than those in the A site, and that the electrons being exchanged rapidly between Fe²⁺ and Fe³⁺ in the B site may take part in the catalytic process.
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