CATALYTIC ACTIVITY AND XPS INVESTIGATION OF DALOFOSSITE OXIDES, CUMO2 (M = AL, CR OR FE)

被引：39

作者：

CHRISTOPHER, J

SWAMY, CS

机构：

[1] Department of Chemistry, Indian Institute of Technology, Madras

来源：

JOURNAL OF MATERIALS SCIENCE | 1992年 / 27卷 / 05期

关键词：

D O I：

10.1007/BF01142052

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Catalytic decomposition of N2O has been carried out on oxides having dalofossite structure CuMO2; (M = Al, Cr or Fe) at 50 and 200 torr initial pressure of N2O in the temperature range 380-480-degrees-C. CuFeO2 showed higher activity while CuCrO2 showed low conversion in the temperature range studied. The variation in activity has been explained based on the presence of mixed valence copper and the concentration of copper on the surface as evinced from X-ray photoelectron spectroscopy.

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页码：1353 / 1356

页数：4

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