An ESR study of electron transfer and oxygen adsorption on 95Mo supported catalysts |
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| Authors: | M. Che J.C. McAteer A.J. Tench |
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| Affiliation: | Institut de Recherches sur la Catalyse, C.N.R.S., 69626 Villeurbanne, France;Chemistry Division, A.E.R.E., Harwell, UK |
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| Abstract: | ESR studies using molybdenum enriched in 95Mo have confirmed that (O2?)s is stabilised at Mo6+ sites at 77 K on silica and alumina supported molybdenum. Warming the Mo/Al2O3 to 300 K leads to an increase in the number of (O2?)s ions observed due to electron transfer from reduced molybdenum sites to give additional (O2?)s adsorbed at Al3+ sites on the support. Molybdenum is not involved at the adsorption site of (O2?)s on the magnesia supported catalyst. |
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