KINETICS AND MECHANISM OF MOLYBDENUM(VI) OXIDE REDUCTION

被引:45
作者
SLOCZYNSKI, J
机构
[1] Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-239 Kraków, ul. Niezapominajiek
关键词
D O I
10.1006/jssc.1995.1314
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Kinetics of the reduction of MoO3 under hydrogen, propene, butene-1, and CO has been studied. It has been found that MoO3 morphology and the addition of MoO2 and metallic platinum affect the rate of reduction under hydrogen. The experimental findings confirm the validity of the CAR model proposed earlier, according to which the reduction of MoO3 to MoO2 is a consecutive reaction and Mo4O11 is the intermediate product. The dissociative adsorption of the reductant yielding atomic hydrogen is the rate-determining step. The process is autocatalytically accelerated by the reaction product, MoO2. (C) 1995 Academic Press, Inc.
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页码:84 / 92
页数:9
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