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Wiley, Angewandte Chemie, 19(125), p. 5205-5209

DOI: 10.1002/ange.201210077

Wiley, Angewandte Chemie International Edition, 19(52), p. 5101-5105, 2013

DOI: 10.1002/anie.201210077

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Importance of the Metal-Oxide Interface in Catalysis: In Situ Studies of the Water-Gas Shift Reaction by Ambient-Pressure X-ray Photoelectron Spectroscopy

Journal article published in 2013 by Kumudu Mudiyanselage, Sanjaya D. Senanayake, Leticia Feria, Shankhamala Kundu, Ashleigh E. Baber, Jesús Graciani, Alba B. Vidal, Stefano Agnoli, Jaime Evans, Rui Chang, Stephanus Axnanda, Zhi Liu, Javier F. Sanz, Ping Liu, José A. Rodriguez and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Where oxide and metals meet: The activation of an efficient associative mechanistic pathway for the water-gas shift reaction by an oxide-metal interface leads to an increase in the catalytic activity of nanoparticles of ceria deposited on Cu(111) or Au(111) by more than an order of magnitude (see graph). In situ experiments demonstrated that a carboxy species formed at the metal-oxide interface is the critical intermediate in the reaction.