Effect of γ-irradiation on the sorptive properties of alumina-supported copper oxide catalysts
作者： A.M Youssef , E.A El-Sharkawy
DOI: 10.1016/S0927-7757(98)00226-X
关键词: Materials science 、 Chemisorption 、 Inorganic chemistry 、 Calcination 、 Aluminium 、 Hydrogen 、 Catalysis 、 Adsorption 、 Copper 、 Copper oxide
摘要: Abstract CuO–Al 2 O 3 samples containing different amounts of copper oxide were prepared by the mechanical mixing individual oven-dried hydroxides and aluminium calcination at 823 K. The calcined γ-irradiated with 10, 25, 50 or 90 Mrad. textural properties unirradiated catalysts determined from N -adsorption 77 K. surface acidities these unreduced adsorption pyridine 423 K. Chemisorption hydrogen benzene on reduced was performed 400 K. area S BET decreases mean pore radius r increases upon increasing CuO content samples. same situation also observed irradiation dose. dose, whereas chemisorption depicts an opposite trend. Moreover, catalytic parameters investigated are influenced strongly metal loading γ-irradiation
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