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Metal Palladium Dispersed Inside Macroporous Ion-Exchange Resins: Textural Characterization and Accessibility to Gaseou Reactants
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SYSNO ASEP 0166678 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Metal Palladium Dispersed Inside Macroporous Ion-Exchange Resins: Textural Characterization and Accessibility to Gaseou Reactants Author(s) Biffis, A. (IT)
Jeřábek, Karel (UCHP-M) RID, ORCID, SAI
D'Archivio, A. A. (IT)
Galantini, L. (IT)
Corain, B. (IT)Source Title Studies in Surface Science and Catalysis - ISSN 0167-2991
Roč. 130, - (2000), s. 2327-2332Number of pages 6 s. Action International Congress on Catalysis /12./ Event date 09.07.2000-14.07.2000 VEvent location Granada Country ES - Spain Language eng - English Country NL - Netherlands Keywords metal palladium ; dispersed ; ion-exchange resins Subject RIV CI - Industrial Chemistry, Chemical Engineering CEZ AV0Z4072921 - UCHP-M Annotation Commercial macroporous ion-exchange resins were used to support Pd metal by a two step ion-exchange and reduction procedure. The textural features of the resins under solid-liquid conditions were determined by means of ISEC, ESR nad PGSE-NMR measurements. TEM characterization of the obtained Pd/rwesin composite showed the presence of uniformly sized Pd crystallites located at the macropore "surface". Pulse chemisorption analysis gave evidence for the lack of accessibility of the crystallites when the resin composite is in the dry state, thus suggesting that the metal particles are in fact embedded in a dry gel-type resin layer at the "surfaceů of the macropores and therefore practically unaccessible to the molecules of a gaseous phase. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2003
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