Oxidative addition of dihydrogen to the bimetallic sulfide catalysts: evidence by X-ray photoelectron spectroscopy |
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| Affiliation: | 1. Department of Chemistry, Colorado State University, Fort Collins, CO 80523, United States;2. School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, United States;3. Department of Chemical & Biological Engineering, Colorado State University, Fort Collins, CO 80523, United States |
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| Abstract: | Reversible transformations Ni(IV)↔Ni(II) in alumina and Sibunit supported (Ni,Mo) sulfide catalysts were observed after in situ thermal treatment of catalysts in an X-ray photoelectron spectrometer chamber. The phenomenon is interpreted as a reductive elimination of occluded hydrogen under low pressure and high temperature, and oxidative addition of hydrogen after catalyst treatment with an (H2+H2S) mixture. |
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