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PREPARATION OF Pd/Al2O3/Al CATALYSTS FOR CO REMOVAL
Korean Journal of Chemical Engineering, September 1998, 15(5), 563-565(3), 10.1007/BF02707111
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Abstract
Aluminum was carefully anodized, then palladium salts were supported on its Al2O3 surface layer by ion-exchange. CO 3.76 vol% contained in the air can be eliminated at around 200℃. Both anodization conditions and the nature of the precursor solutions affect catalyst nature, particularly the pH value of the precursor solutions. The pH value of the solution suitable for supporting active components is 5-6. Palladium, which is present as Pd2+ and Pd4+ after calcination, distributes uniformly on the support surface which had a honeycomb structure.
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