Kinetics and mechanism of hydrogen reduction of MoO3 to MoO2

被引：100

作者：

Dang, Jie ^{[1
,2
]}

Zhang, Guo-Hua ^{[1
,2
]}

Chou, Kuo-Chih ^{[1
,2
]}

Reddy, Ramana G. ^{[3
]}

He, Yu ^{[4
]}

Sun, Yuanjun ^{[5
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Dept Phys Chem, Sch Met & Ecol Engn, Beijing 100083, Peoples R China

[3] Univ Alabama, Dept Met & Mat Engn, Tuscaloosa, AL 35487 USA

[4] Shaanxi Nonferrous Met Holding Grp Co Ltd, Xian 710075, Peoples R China

[5] Jinduicheng Molybdenum Co Ltd, Xian 710077, Peoples R China

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2013年 / 41卷

基金：

中国国家自然科学基金;

关键词：

MoO3; Mo4O11; MoO2; Hydrogen reduction; Kinetics; TEMPERATURE-PROGRAMMED REDUCTION; MOLYBDENUM; POWDER;

D O I：

10.1016/j.ijrmhm.2013.04.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Kinetics and mechanism of the hydrogen reduction of MoO3 to MoO2 were studied in this work. The experimental findings confirmed that the reduction of MoO3 to MoO2 was a consecutive reaction with the intermediate product Mo4O11. The dual reactions (MoO3 -> Mo4O11, Mo4O11 -> MoO2) occurred simultaneously, and the rate of the first reaction was higher than that of the second one. The reduction kinetics of MoO3 was analyzed according to a two-interface model, the predicted curves of which agreed well with the experimental results. Using this model, the rate controlling steps and the corresponding activation energies were obtained. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：216 / 223

页数：8

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