Deactivation of platinum catalysts by oxygen. 2. Nature of the catalyst deactivation

P.J.M. Dijkgraaf, H.A.M. Duisters, B.F.M. Kuster, K. Wiele, van der

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Abstract

The effect of different start-up procedures on the deactivation of a 5% Pt/C catalyst used for the oxidation of -gluconate has been investigated. Results have been obtained both in a stirred tank reactor for batch experiments and in an apparatus for continuous oxidation processes. The deactivation of the catalyst is not explicable by formation of platinum oxides. A model is proposed for the deactivation of platinum catalysts by oxygen, based on penetration of oxygen atoms into the platinum lattice.
Original languageEnglish
Pages (from-to)337-344
Number of pages8
JournalJournal of Catalysis
Volume112
Issue number2
DOIs
Publication statusPublished - 1988

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