Effect of cold Ar plasma treatment on the catalytic performance of Pt/CeO2 in water-gas shift reaction (WGS)
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Title: | Effect of cold Ar plasma treatment on the catalytic performance of Pt/CeO2 in water-gas shift reaction (WGS) |
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Authors: | Pastor Pérez, Laura | Belda-Alcázar, Victor | Marini, Carlo | Pastor-Blas, M. Mercedes | Sepúlveda-Escribano, Antonio | Ramos-Fernández, Enrique V. |
Research Group/s: | Materiales Avanzados |
Center, Department or Service: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Keywords: | Plasma | Water-gas shift | Platinum | XANES | XPS |
Knowledge Area: | Química Inorgánica |
Issue Date: | 5-Jun-2018 |
Publisher: | Elsevier |
Citation: | Applied Catalysis B: Environmental. 2018, 225: 121-127. doi:10.1016/j.apcatb.2017.11.065 |
Abstract: | The effect of Ar plasma treatment on the catalytic performance of Pt/CeO2 has been studied. The catalyst was activated using different procedures separately or in combination: calcination, reduction under pure H2 and cold Ar plasma treatment. The resulting materials were characterized by X-ray photoelectron spectroscopy, X-ray adsorption near edge structure and temperature-programmed reduction with H2. The resulting materials were tested in the water-gas shift reaction (WGS). It has been found that the combination of calcination, plasma and hydrogen treatments leads to a very active catalyst for WGS. Furthermore, the catalyst structure–performance relationship has been assessed. The plasma treatment generated electron-enriched Pt particles which show a very strong interaction with the ceria support. This favoured CO chemisorption and increased the reducibility of the support, which takes part in the WGS the reaction by favouring water splitting. |
Sponsor: | Financial support from Generalitat Valenciana (project PROMETEOII/2014/004) and MINECO (Project MAT2013-45008-P) is gratefully acknowledged. EVRF also thanks MINECO for his Ramon y Cajal fellow RYC-2012-11427 and the following project MAT2016-81732-ERC. |
URI: | http://hdl.handle.net/10045/71555 |
ISSN: | 0926-3373 (Print) | 1873-3883 (Online) |
DOI: | 10.1016/j.apcatb.2017.11.065 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2017 Elsevier B.V. |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.1016/j.apcatb.2017.11.065 |
Appears in Collections: | INV - LMA - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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2018_Pastor-Perez_etal_ApplCatB_final.pdf | Versión final (acceso restringido) | 538,66 kB | Adobe PDF | Open Request a copy |
2018_Pastor-Perez_etal_ApplCatB_revised.pdf | Versión revisada (acceso abierto) | 2,04 MB | Adobe PDF | Open Preview |
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