Journalartikel
Autorenliste: Hollmann, Dirk; Merka, Oliver; Schwertmann, Larissa; Marschall, Roland; Wark, Michael; Brueckner, Angelika
Jahr der Veröffentlichung: 2015
Seiten: 769-775
Zeitschrift: Topics in Catalysis
Bandnummer: 58
Heftnummer: 12-13
ISSN: 1022-5528
eISSN: 1572-9028
DOI Link: https://doi.org/10.1007/s11244-015-0415-8
Verlag: Springer
Abstract:
In situ EPR spectroscopy proved to be a versatile tool to identify active sites for photocatalytic hydrogen generation in modified Y2Ti2O7 and CsTaWO6 catalysts of pyrochlore structure, in which the metal cations are located in two different positions A and B. It was found that the B-sites exclusively occupied by titanium (Y2Ti2O7) and tantalum/tungsten (CsTaWO6) act as electron traps on the surface. From these sites, electron transfer to the co-catalysts proceeds. Thus, the B-sites are responsible for photocatalytic water reduction.
Zitierstile
Harvard-Zitierstil: Hollmann, D., Merka, O., Schwertmann, L., Marschall, R., Wark, M. and Brueckner, A. (2015) Active Sites for Light Driven Proton Reduction in Y2Ti2O7 and CsTaWO6 Pyrochlore Catalysts Detected by In Situ EPR, Topics in Catalysis, 58(12-13), pp. 769-775. https://doi.org/10.1007/s11244-015-0415-8
APA-Zitierstil: Hollmann, D., Merka, O., Schwertmann, L., Marschall, R., Wark, M., & Brueckner, A. (2015). Active Sites for Light Driven Proton Reduction in Y2Ti2O7 and CsTaWO6 Pyrochlore Catalysts Detected by In Situ EPR. Topics in Catalysis. 58(12-13), 769-775. https://doi.org/10.1007/s11244-015-0415-8
Schlagwörter
ELECTRONS; electron transfer; EPR; H-2; OXIDE SURFACES; Photocatalysis; PHOTOCATALYTIC HYDROGEN-PRODUCTION; pyrochlore; VISIBLE-LIGHT; WATER REDUCTION
