Abstract
The hydrogenation reactivity of surface carbon deposited by CO decomposition was investigated for a rhodium-vanadium catalyst. It appeared that the rate of methanation of reactive surface carbon is decreased by vanadium. The reactivity towards C2+ hydrocarbons is enhanced by vanadium. The relation between stronger adsorbed carbon atoms and the formation of higher hydrocarbons is discussed. ASED calculations support the proposal that changes in metal-carbon bond strength have a significantly larger effect on the rate of methanation than on carbon chain growth.
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Koerts, T., Van Santen, R.A. The reactivity of adsorbed carbon on vanadium promoted rhodium catalysts. Catal Lett 6, 49–57 (1990). https://doi.org/10.1007/BF00764052
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DOI: https://doi.org/10.1007/BF00764052