Publication Details |
Category | Text Publication |
Reference Category | Book chapters |
DOI | 10.1016/S0167-2991(97)80864-6 |
Title (Primary) | Evidence for a charge transfer from spilt-over hydrogen to platinum by means of ESR spectroscopy |
Title (Secondary) | Spillover and migration of surface species on catalysts. Proceedings of the 4th International Conference on Spillover, Dalian, China, September 15-18, 1997 |
Author | Gutsze, A.; Roland, U.; Karge, H.G. |
Publisher | Li, C.; Xin, Q. |
Source Titel | Studies in Surface Science and Catalysis |
Year | 1997 |
Department | SAN |
Volume | 112 |
Page From | 417 |
Page To | 424 |
Language | 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. |
Persistent UFZ Identifier | 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 |