Chemistry Letters · 1993 · 35 citations · 1 references
Natural SciencesChemistryMaterials ScienceInorganic ChemistryPhysical ChemistrySurface ScienceAdsorption At InterfacesCatalyst CharacterizationSupported CatalystsSurface AdsorptionSurface PhysicsSurface ReactionsChemical DesorptionDesorptionRearrangement ReactionsSelectivityTemperature DependenceZeolite AdsorbentsZeolite AdsorptionZeolites
Abstract The temperature dependence of the FT-IR spectra of adsorbed cyclohexanone oxime on pentasil zeolite revealed that the rearrangement to ε-caprolactam takes place at 100 °C, a higher temperature is necessary for its desorption, and a high selectivity over high silicious zeolite is attributable to its low acidity for both smooth rearrangement and smooth desorption. A neutral silanol is proposed to be an active site.
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