Thermalcharacterisation of molybdenum and platinum-molybdenum catalysts |
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| Authors: | Z. Sarbak W. K. Jóźwiak |
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| Affiliation: | (1) Laboratory of Adsorption and Catalysis in Environmental Protection, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland, 60780, Grunwaldzka 6;(2) Institute of General and Ecological Chemistry, Technical University, Łódż, Poland, 90-924, Żeromskiego 116 |
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| Abstract: | Alumina supported Mo and Pt-Mo catalysts was subject to temperature programmed reduction (TPR) using H2 and CO. After earlier oxidation step TPR–H2 profiles shows different surface species, which depends on the composition of the catalysts and reduction temperature. Change in reducing gas from H2 into CO results in significant changes in catalyst system. Hydrogen causes a decrease in oxidation number of metals, while carbon monoxide reacts with chemisorbed chemicals. |
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| Keywords: | Mo/Al2O3 Pt-Mo/Al2O3 catalysts TPR– CO TPR– H2 |
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