CGO-based electrochemical catalysts for low temperature combustion of propene
| Autor: | R. Karoum, Rose-Noëlle Vannier, Caroline Pirovano, Alain Billard, Virginie Roche, Philippe Vernoux |
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| Přispěvatelé: | Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Materials science
General Chemical Engineering Inorganic chemistry 02 engineering and technology Electrolyte engineering.material 010402 general chemistry Electrochemistry 7. Clean energy 01 natural sciences Catalysis Propene chemistry.chemical_compound Lanthanum manganite Coating Materials Chemistry Perovskite (structure) [CHIM.CATA]Chemical Sciences/Catalysis 021001 nanoscience & nanotechnology [SDE.ES]Environmental Sciences/Environmental and Society 0104 chemical sciences chemistry engineering 0210 nano-technology Stoichiometry |
| Zdroj: | Journal of Applied Electrochemistry Journal of Applied Electrochemistry, Springer Verlag, 2010, 40 (10), pp.1867-1873. ⟨10.1007/s10800-010-0156-0⟩ |
| ISSN: | 0021-891X 1572-8838 |
| DOI: | 10.1007/s10800-010-0156-0⟩ |
| Popis: | Karoum, R. Roche, V. Pirovano, C. Vannier, Rose-Noelle Billard, A. Vernoux, P.; This study has shown that the phenomenon of electrochemical promotion of catalysis or NEMCA effect can be used to activate a metal catalyst for the propene deep oxidation in the presence of water in the feed and in both stoichiometric and lean-burn conditions. The electrochemical catalysts were based on sputtered Pt films interfaced with gadolinium-doped ceria solid electrolyte. This system allows implementing NEMCA effect at quite low temperatures and electrochemical activation of propene deep oxidation was evidenced at temperatures as low as 190 A degrees C. In addition, a new design of electrochemical catalysts was proposed by depositing a interlayer of strontium-doped lanthanum manganite between the CGO dense support and an ultra-thin coating of Pt. This concept allows to drastically decrease the Pt loading since the electronic conductivity is ensured by the perovskite layer. |
| Databáze: | OpenAIRE |
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