Collection of Czechoslovak Chemical Communications · 1988 · 11 citations · 0 references
Natural SciencesChemistryMaterials SciencePhysical ChemistrySurface ChemistrySurface ScienceAdsorption ProcessesSurface AdsorptionSurface KineticsSurface Reaction KineticsSurface ReactionsSurface ReactivityAdsorption ChemistryAdsorption KineticsRate ConstantsSurface Adsorption PhenomenaSurface Chemistry Of AluminaSurface Reaction DynamicsSurface Reaction MechanismsSurface Temperature
Dynamic behavior of surface complexes of 2-propanol on aluminia during adsorption and dehydration was studied using IR spectroscopy. Good agreement was found between the first-order rate constants of alkene formation in pulse-flow experiments and that of disapearance of a reactive surface complex. It was shown that the simple surface alkoxide 2-Pr-O-Al remains on the surface constant temperature, but it can be completely removed by hydrolysis, or by heating up to 200 °C. The surface carboxylates are formed very slowly and are stable even in the presence of water vapour at 300 °C.