States of cobalt and iron in catalysts supported on TiO2 from data of diffuse reflectance IR spectra of adsorbed carbon monoxide |
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| Authors: | A. A. Davydov N. Coville |
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| Affiliation: | (1) G. K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 5 ul. Akad. Lavrent'eva, 630090 Novosibirsk, Russian Federation;(2) University of the Wiswatersrand Wits, 2050 Johannesburg, South Africa |
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| Abstract: | The variations in the oxidation states of cobalt and iron atoms in pure and mixed Co- and Fe-containing catalysts supported on TiO2 as a function of the conditions in which the catalysts were prepared and preliminarily treated were studied by analysis of the IR spectra of carbon monoxide adsorbed on these catalysts. A mutual influence of the components was discovered; iron was found to promote reduction of cobalt.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1946–1951, October, 1995. |
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| Keywords: | Co Fe catalysts TiO2 supported catalysts IR spectra of adsorbed CO oxidation states of metal atoms |
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