Journalartikel

Jahr der Veröffentlichung: 2004

Seiten: 1537-1541

Zeitschrift: Journal of the American Chemical Society

Bandnummer: 126

Heftnummer: 5

ISSN: 0002-7863

DOI Link: https://doi.org/10.1021/ja0364423

Verlag: American Chemical Society

Abstract: 
RuO(2)-based catalysts are much more active in the oxidation of CO than related metallic Ru catalysts. This high catalytic activity (or low activation barrier) is attributed to the weak oxygen surface bonding of bridging O atoms on RuO(2)(110) in comparison with the strongly chemisorbed oxygen on Ru(0001). Since the RuO(2)(110) surface is able to stabilize an even more weakly bound on-top oxygen species, one would anticipate that the catalytic activity will increase further under oxidizing conditions. We will show that this view is far too simple to explain our temperature-programmed reaction experiments, employing isotope labeling of the potentially active surface oxygen species on RuO(2)(110). Rather, both surface O species on RuO(2)(110) reveal similar activities in oxidizing CO.

Harvard-Zitierstil: Wendt, S., Knapp, M. and Over, H. (2004) The role of weakly bound on-top oxygen in the catalytic CO oxidation reaction over RuO2(110), Journal of the American Chemical Society, 126(5), pp. 1537-1541. https://doi.org/10.1021/ja0364423

APA-Zitierstil: Wendt, S., Knapp, M., & Over, H. (2004). The role of weakly bound on-top oxygen in the catalytic CO oxidation reaction over RuO2(110). Journal of the American Chemical Society. 126(5), 1537-1541. https://doi.org/10.1021/ja0364423