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  Reaction mechanism of preferential CO oxidation in excess hydrogen (PROX) on ceria supported Pt and Pd catalysts. Oxidation state and surface species as revealed by in-situ techniques

Teschner, D., Pozdnyakova, O., Wootsch, A., Kröhnert, J., Steinhauer, B., Sauer, H., et al. (2005). Reaction mechanism of preferential CO oxidation in excess hydrogen (PROX) on ceria supported Pt and Pd catalysts. Oxidation state and surface species as revealed by in-situ techniques. Talk presented at Seventh European Congress on Catalysis. Sofia, Bulgaria. 2005-08-28 - 2005-09-01.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-07CF-E Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-07CF-E
Genre: Talk

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Teschner_Prox_Sofia_v1.ppt (Any fulltext), 24MB
 
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 Creators:
Teschner, Detre1, Author           
Pozdnyakova, Olga, Author
Wootsch, Attila, Author
Kröhnert, Jutta1, Author           
Steinhauer, Berndt1, Author           
Sauer, Hermann1, Author           
Paál, Zoltán1, Author           
Jentoft, Friederike1, Author           
Knop-Gericke, Axel1, Author           
Schlögl, Robert1, Author           
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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Free keywords: Hydrogen purification; Fuel cell; Preferential CO oxidation; PROX; Platinum, Palladium; Palladium-hydride; Pt/ceria; Pd/CeO2; Ceria; High pressure XPS; In situ DRIFT; TDS; HRTEM CO removal for fuel cell applications
 Abstract: The CO content of hydrogen feed to proton exchange membrane fuel cells (PEMFC) must be kept under 1-100 ppm for their proper operation. This can be achieved by using catalysts able to selectively oxidize CO in the presence of excess hydrogen (PROX). The present study reports on the mechanism of PROX reaction on Pt/CeO2 and Pd/CeO2 catalysts, by using catalytic tests, in-situ DRIFTS, high-pressure XPS, HRTEM and TDS techniques.

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Language(s): eng - English
 Dates: 2005-08-26
 Publication Status: Not specified
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 Identifiers: eDoc: 248768
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Title: Seventh European Congress on Catalysis
Place of Event: Sofia, Bulgaria
Start-/End Date: 2005-08-28 - 2005-09-01

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