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Stabilization of Catalytically Active Cu plus Surface Sites on TitaniumCopper Mixed-Oxide Films**
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2014 (Engelska)Ingår i: Angewandte Chemie International Edition, ISSN 1433-7851, E-ISSN 1521-3773, Vol. 53, nr 21, s. 5336-5340Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The oxidation of CO is the archetypal heterogeneous catalytic reaction and plays a central role in the advancement of fundamental studies, the control of automobile emissions, and industrial oxidation reactions. Copper-based catalysts were the first catalysts that were reported to enable the oxidation of CO at room temperature, but a lack of stability at the elevated reaction temperatures that are used in automobile catalytic converters, in particular the loss of the most reactive Cu+ cations, leads to their deactivation. Using a combined experimental and theoretical approach, it is shown how the incorporation of titanium cations in a Cu2O film leads to the formation of a stable mixed-metal oxide with a Cu+ terminated surface that is highly active for CO oxidation.

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2014. Vol. 53, nr 21, s. 5336-5340
Nyckelord [en]
CO oxidation, IR spectroscopy, mixed oxides, scanning tunneling microscopy, surface chemistry
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URN: urn:nbn:se:kth:diva-147038DOI: 10.1002/anie.201402435ISI: 000335809200014Scopus ID: 2-s2.0-84900875568OAI: oai:DiVA.org:kth-147038DiVA, id: diva2:728482
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QC 20140624

Tillgänglig från: 2014-06-24 Skapad: 2014-06-23 Senast uppdaterad: 2017-12-05Bibliografiskt granskad

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Soldemo, MarkusWeissenrieder, JonasStacchiola, Dario J.

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