Abstract
FTIR spectra of a Ru-RuOx/TiO2 catalyst obtained on co-adsorption of CO, CO2 and H2 in the temperature range of 300–500 K were found to be the sum total of corresponding spectra observed during methanation of individual oxides. The two oxides compete for metal sites and at each temperature they reacted simultaneously to form distinct transient Ru(CO)n type species even though the nature, the stability and the reactivity of these species were different in the two cases. The monocarbonyl species formed during adsorption/reaction of CO alone or of CO + H2 were bonded more strongly than those formed during CO2 + H2 reaction.
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Gupta, N.M., Kamble, V.S., Iyer, R.M. et al. FTIR studies on the CO, CO2 and H2 co-adsorption over Ru-RuO x /TiO2 catalyst. Catal Lett 21, 245–255 (1993). https://doi.org/10.1007/BF00769476
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DOI: https://doi.org/10.1007/BF00769476