Untersuchungen an Metallkatalysatoren. XI. Untersuchungen an eisen-, kobalt- und nickelmodifizierten Pt-η-Al2O3-Katalysatoren |
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Authors: | S Engels W Mrke J Siedler |
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Institution: | S. Engels,W. Mörke,J. Siedler |
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Abstract: | Investigations on Metal Catalysts. XI. Investigations on Pt? η-Al2O3 Catalysts Modifieded by Iron, Cobalt, and Nickel Pt? Me? η-Al2O3 catalysts (M: Fe, Co, Ni) were characterized by magnetic investigations, reflectance spectra and determination of dispersity (chemisorption of CO, oxygen-hydrogen titration), respectively. The phase structure of platinum-rich catalysts is composed of a high degree by Pt3Fe super-structure. All the Pt? Fe? η-Al2O3 catalysts contained FeIII ions in octahedral symmetry. The dispersity of the metallic components is determined essentially by their phase structure. |
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