Optical Spectroscopic Studies of CuCr2O4/γ-Al2O3. Catalyst Deactivation under Operation in Catalytic Heat Generators
Reaction Kinetics and Catalysis Letters
, E-ISSN: 1588-2837
Institute of Catalysis, Novosibirsk, USSR
The state of metal cations in CuCr2O4/γ-Al2O3 catalysts under its operation in catalytic heat generators has been examined. IR spectra of adsorbed CO indicate copper ion reduction in the catalyst to Cu+, whose surface concentration was determined. Diffuse reflectance spectra have revealed that the initial catalyst contains Cr(VI), disappearing after reaction.