Details zur Publikation

Kategorie Textpublikation
Referenztyp Buchkapitel
DOI 10.1016/S0167-2991(97)80864-6
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. Proceedings of the 4th International Conference on Spillover, Dalian, China, September 15-18, 1997
Autor Gutsze, A.; Roland, U.; Karge, H.G.
Herausgeber Li, C.; Xin, Q.
Quelle Studies in Surface Science and Catalysis
Erscheinungsjahr 1997
Department SAN
Band/Volume 112
Seite von 417
Seite bis 424
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.

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. Proceedings of the 4th International Conference on Spillover, Dalian, China, September 15-18, 1997
Studies in Surface Science and Catalysis 112
Elsevier, p. 417 - 424 10.1016/S0167-2991(97)80864-6