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  Strong metal-support interactions between palladium and iron oxide and their effect on CO oxidation

Naumann d'Alnoncourt, R., Friedrich, M., Kunkes, E. L., Rosenthal, D., Girgsdies, F., Zhang, B. S., et al. (2014). Strong metal-support interactions between palladium and iron oxide and their effect on CO oxidation. Journal of Catalysis, 317, 220-228. doi:10.1016/j.jcat.2014.06.019.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-E447-A Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0023-C704-B
Genre: Journal Article

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 Creators:
Naumann d'Alnoncourt, Raoul1, Author           
Friedrich, Matthias1, Author           
Kunkes, Edward L.1, Author           
Rosenthal, Dirk1, Author           
Girgsdies, Frank1, Author           
Zhang, Bing Sen1, Author           
Shao, Lidong1, 2, Author           
Schuster, Manfred Erwin1, Author           
Behrens, Malte1, 3, Author           
Schlögl, Robert1, Author           
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
2College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, PR China, ou_persistent22              
3Universität Duisburg-Essen, Fakultät für Chemie, Universitätsstraße 5, 45141 Essen, Germany, ou_persistent22              

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Free keywords: Heterogeneous catalysis; Palladium; CO oxidation; Pd/FeOx; SMSI; Reducible supports; XPS; XRD; HRTEM
 Abstract: Pd/FeOx catalysts were prepared by co-precipitation and characterized before and after reduction using X-ray powder diffraction, thermal analysis, CO chemisorption, electron microscopy, and X-ray photoelectron spectroscopy. Results give evidence for the encapsulation of palladium particles by iron oxide after reduction at high temperatures (523 K). Oxidation of carbon monoxide was applied as test reaction to characterize catalyst samples in different states. Strong metal-–support interactions significantly enhance catalytic activity for oxidation of carbon monoxide. However, this state is not stable under the applied reaction conditions. Catalyst deactivation occurs in two ways: (1) via changes in the oxidation state of iron species and (2) due to sintering of palladium particles

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Language(s): eng - English
 Dates: 2014-06-132014-04-072013-06-162014-08
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.jcat.2014.06.019
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Title: Journal of Catalysis
Source Genre: Journal
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Publ. Info: San Diego, CA. : Academic Press
Pages: - Volume / Issue: 317 Sequence Number: - Start / End Page: 220 - 228 Identifier: ISSN: 0021-9517
CoNE: https://pure.mpg.de/cone/journals/resource/954922645027