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Journal of Materials Science
Published in: Journal of Materials Science 14/2018

23-04-2018 | Chemical routes to materials

Preparation of Mo2C by reduction and carbonization of MoO2 with CH3OH

Authors: Zepeng Lv, Jie Dang, Yijie Wu, Xuewei Lv, Shengfu Zhang

Published in: Journal of Materials Science | Issue 14/2018

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Abstract

Molybdenum hemicarbide (Mo2C) can be widely used in the fields of steel, metal ceramics, and catalyst of hydrogen-involved reactions. This work reported a new and simple method for preparing molybdenum hemicarbide by reducing and carbonizing MoO2 with methanol, and both thermodynamic and experimental studies were carried out. Based on the results, the reduction and carbonization routes are obtained: MoO2 was reduced and carburized directly to Mo2C in one step at lower temperatures, and first reduced to metallic Mo and then carburized to Mo2C at higher temperatures. The reduction mechanisms at low and high temperatures were proposed as well: The pseudomorphic transformation mechanism dominated the reaction at low temperatures, but at high temperatures, the reaction obeyed the chemical vapor transport mechanism.
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Metadata
Title
Preparation of Mo2C by reduction and carbonization of MoO2 with CH3OH
Authors
Zepeng Lv
Jie Dang
Yijie Wu
Xuewei Lv
Shengfu Zhang
Publication date
23-04-2018
Publisher
Springer US
Published in
Journal of Materials Science / Issue 14/2018
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-2339-8

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