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Spectroscopic and catalytic properties of “pure” and “ultrapure” γ-Al2O3 samples, both from Sasol, are compared. The “pure” sample has additional absorption in the UV region, much stronger luminescence in the Raman scattering experiments, slightly different skeletal surface OH groups IR spectra, and more evident features of weakly adsorbed pyridine. These effects are attributed to small amounts of...
Oxidative dehydrogenation of ethanol over the AgLi–Al2O3 catalysts having different phase compositions of alumina was investigated. The pure gamma (CHI00), pure chi (CHI100) and equally mixed phases (CHI50) derived from the solvothermal synthesis can play important roles on the physicochemical properties of AgLi–Al2O3 catalysts. Especially, the amount of weak basic sites, the oxidation state of Ag,...
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