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Details zur Publikation

Referenztyp Buchkapitel
DOI / URL
Titel (primär) Evidence for a charge transfer from spilt-over hydrogen to platinum by means of ESR spectroscopy
Titel (sekundär) Spillover and migration of surface species on catalysts
Autor Gutsze, A.; Roland, U.; Karge, H.G.;
Herausgeber Li, C.; Xin, Q.;
Journal / Serie Studies in Surface Science and Catalysis
Erscheinungsjahr 1997
Department SAN;
Band/Volume 112
Sprache englisch;
Abstract

An electron transfer from spilt-over hydrogen (H*) to platinum on a Pt/gamma-Al2O3 catalyst has been investigated by ESR spectroscopy. Activated hydrogen is formed on Pt clusters and the resulting atomic H* species migrate onto the alumina surface where they can interact with single Pt atoms. The chemisorption of H* at 77 K leads to the appearance of ESR signals which are related to the formation of Pt-n(-) and Pt- species. This charge transfer is correlated to the formation of H+ ions from initially present radical hydrogen spillover species.

ID 9286
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=9286
Gutsze, A., Roland, U., Karge, H.G. (1997):
Evidence for a charge transfer from spilt-over hydrogen to platinum by means of ESR spectroscopy
In: Li, C., Xin, Q. (eds.)
Spillover and migration of surface species on catalysts
Studies in Surface Science and Catalysis 112
Elsevier, p. 417 - 424