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The temperature programmed desorption (TPD) of triethylamine from alumina and two alumina-supported palladium catalysts of different metal loadings (0.3 and 2.77 wt.% Pd) confirmed the presence of strong Lewis acid sites in the samples subjected to high temperature reduction at 600_C. With increasing temperature during thermodesorption, triethylamine adsorbed on Lewis acid sites of alumina undergoes...
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