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Catalytic activity and XPS investigation of dalofossite oxides, CuMO2 (M=Al, Cr or Fe)

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Abstract

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 °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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Christopher, J., Swamy, C.S. Catalytic activity and XPS investigation of dalofossite oxides, CuMO2 (M=Al, Cr or Fe). J Mater Sci 27, 1353–1356 (1992). https://doi.org/10.1007/BF01142052

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