Preparation of Pd/Al2O3/Al catalysts for CO removal

Aluminum was carefully anodized, then palladium salts were supported on its A12O3 surface layer by ion-exchange. CO 3.76 vol% contained in the air can be eliminated at around 200 °C. Both anodization conditions and the nature of the precursor solutions affect catalyst nature, particularly the pH val...

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Bibliographic Details
Published inThe Korean journal of chemical engineering Vol. 15; no. 5; pp. 563 - 565
Main Authors Li, Xin-Heng, An, Li-Dun
Format Journal Article
LanguageEnglish
Published New York Springer Nature B.V 01.09.1998
Subjects
Aluminum oxide
Catalysts
Honeycomb structures
Ion exchange
Palladium
Precursors
Surface layers
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Summary:Aluminum was carefully anodized, then palladium salts were supported on its A12O3 surface layer by ion-exchange. CO 3.76 vol% contained in the air can be eliminated at around 200 °C. 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.
ISSN:0256-1115
1975-7220
DOI:10.1007/BF02707111