Study on reduction reaction of MoO 2  powder with  NH  3 | Zendy

Wang Lu | Zendy; Zhang GuoHua | Zendy; Chou KuoChih | Zendy

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Study on reduction reaction of MoO 2 powder with NH 3

Author(s) -

Wang Lu,

Zhang GuoHua,

Chou KuoChih

Publication year - 2017

Publication title -

journal of the american ceramic society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.9

H-Index - 196

eISSN - 1551-2916

pISSN - 0002-7820

DOI - 10.1111/jace.14740

Subject(s) - molybdenum , metal , atmospheric temperature range , raw material , nitride , phase (matter) , materials science , reaction mechanism , metal powder , reaction conditions , chemistry , crystallography , inorganic chemistry , metallurgy , catalysis , nanotechnology , thermodynamics , organic chemistry , physics , layer (electronics)

Reaction mechanism between MoO 2 powder and NH 3 in the temperature range of 1028‐1273 K has been investigated. The results show that reduction products are strongly dependent on the reaction temperature employed. It is found that molybdenum nitride (Mo 2 N) can be successfully synthesized when the temperature is below 1078 K, with the morphologies keep the same as that of the raw material MoO 2 . Although the temperature is above 1078 K, metal Mo powder will be turned up; at the even higher temperatures, the thermodynamically stable phase will be metal Mo. In addition, MoO x N 1− x as an intermediate product is formed during the reduction processes.

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