Preparation of MoO2 by the Solid State Reaction Between MoS2 and MoO3

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• 作者：Lu Wang ; Chun-Yang Bu ; Guo-Hua Zhang ; Tao Jiang ; Kuo-Chih Chou
• 刊名：JOM Journal of the Minerals, Metals and Materials Society
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：68
• 期：3
• 页码：1031-1036
• 全文大小：778 KB
• 参考文献：1.P. Jarosz, JOM 65, 1615 (2013).
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• 作者单位：Lu Wang (1)
  Chun-Yang Bu (2)
  Guo-Hua Zhang (1)
  Tao Jiang (1)
  Kuo-Chih Chou (1)
  
  1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, China
  2. Jinduicheng Molybdenum Co. Ltd., Xi’an, 710077, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Metallic Materials
  Nanotechnology
  Crystallography
  
• 出版者：Springer Boston
• ISSN：1543-1851

文摘

In the present study, the solid state reactions between molybdenum disulfide (MoS₂) and molybdenum trioxide (MoO₃) under different mixing molar ratios and different reaction temperatures have been investigated in order to produce industrial grade molybdenum dioxide (MoO₂). It was found that it was difficult to react completely when the temperature was less than 873 K. However, when the temperature was up to 923 K or 973 K, the final product MoO₂ with low residual sulfur can be obtained. Results of the residual sulfur levels at different conditions show that the content of residual sulfur decreases with the increase of temperature. In addition, the excess additions of MoO₃ are effective and necessary in order to decrease the residual sulfur level. When the mixing molar ratio of MoS₂ to MoO₃ is 1:6.5, the content of residual sulfur can decrease down to 0.075% at 973 K. It was also found that the reaction between MoS₂ and MoO₃ obeyed the shrinking core model.