No CrossRef data available.
Article contents
A Study of Copper-Chromium Oxide Catalysts and a Method to Determine Catalytic Activities
Published online by Cambridge University Press: 06 March 2019
Abstract
An extensive investigation of chemical composition, particle size, and surface area of copper-chromium oxide catalysts has been made. The two phases present in the activated material are copper oxide (CuO) and copper-chromium spinel (CuCr2O4). The crystallite size of the CuO phase (determined by X-ray diffraction line broadening) can be correlated with the catalytic activity measured on a CO-CO2 oxidation reaction. The catalytic activity of the oxide catalyst can be expressed as a function of the X-ray fluorescence intensity of the Cu Kα line even on changing the absolute copper concentration up to 3%. An attempt is made to explain this phenomenon by the heterogeneity effect caused by the difference in the linear absorption factors for the Cu Kα radiation in the system CuO-CuCr2O4.
- Type
- Research Article
- Information
- Copyright
- Copyright © International Centre for Diffraction Data 1963
References
1.
Stroupe, James D., “An X-Ray Diffraction Study of the Copper Chromites and of the ‘Copper-Chromium Oxide’ Catalyst,” J. Am. Chem, Soc.
71: 569, 1949.Google Scholar
2.
Glemser, O., Hauschild, U., and Trlipel, F., “Chromium Oxides Between Cra03 and CrO3,” Naturwiss.
40: 317, 1953.Google Scholar
4.
Adkins, H., Burgoyne, E. E., and Schneider, H. J., “The Copper-Chromium Oxide Catalyst for Hydrogenation,“J. Am. Chem. Soc.
72: 2626, 1950.Google Scholar
5.
Claisse, F. and Samson, C., “Heterogeneity Effects in X-iray Analysis,” Advances in X-Ray Analysis, Vol. 5, University of Denver, Plenum Press, New York, 1962, p. 335.Google Scholar