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Título: | New concept for old reaction: novel WGS catalyst design |
Autor: | García-Moncada, Nuria; González Castaño, M. CSIC ORCID; Ivanova, Svetlana CSIC ORCID; Centeno, Miguel Ángel CSIC ORCID; Romero Sarria, Francisca CSIC ORCID; Odriozola, José Antonio CSIC ORCID | Palabras clave: | WGS Ionic conductor Au catalyst Cu catalysts Water activation Pt catalyst Rate-limiting step |
Fecha de publicación: | 15-dic-2018 | Editor: | Elsevier | Citación: | Applied Catalysis B - Environmental 238: 1-5 (2018) | Resumen: | The viability of water gas shift catalytic system for mobile application passes through obligatory reactor volume reduction, achieved normally by using less charge of more efficient catalyst. Completely new concept for catalyst design is proposed: a catalytic system including classically reported WGS catalysts of different nature or active phase (Cu, Pt or Au) mechanically mixed with an ionic conductor. The influence of the later on catalyst activity is studied and discussed, more precisely its effect on the rate of the reaction-limiting step and catalysts’ efficiency. It is demonstrated with this study, that the presence of an ionic conductor in contact with a WGS catalyst is essential for the water supply (dissociation and transport), thereby potentiating the water activation step, whatever the mechanism and catalyst overall performance. | Versión del editor: | https://doi.org/10.1016/j.apcatb.2018.06.068 | URI: | http://hdl.handle.net/10261/193138 | DOI: | 10.1016/j.apcatb.2018.06.068 | ISSN: | 0926-3373 |
Aparece en las colecciones: | (ICMS) Artículos |
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accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
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