Journal of Applied Electrochemistry

, Volume 40, Issue 10, pp 1867–1873 | Cite as

CGO-based electrochemical catalysts for low temperature combustion of propene

  • R. Karoum
  • V. Roche
  • C. Pirovano
  • Rose-Noelle Vannier
  • A. Billard
  • P. Vernoux
Original Paper

Abstract

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 °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.

Keywords

Electrochemical promotion EPOC NEMCA effect Electrochemical catalyst CGO Strontium-doped lanthanum manganite interlayer Propene combustion Wet condition 

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • R. Karoum
    • 1
    • 2
  • V. Roche
    • 1
  • C. Pirovano
    • 3
  • Rose-Noelle Vannier
    • 3
  • A. Billard
    • 2
  • P. Vernoux
    • 1
  1. 1.Institut de Recherches sur la Catalyse et l’Environnement de Lyon, IRCELYONUniversité Lyon 1, CNRS, UMR 5256VilleurbanneFrance
  2. 2.Laboratoire d’Etudes et Recherches sur les Matériaux, les Procédés et les SurfacesUniversité de Technologie de Belfort-MontbéliardBelfortFrance
  3. 3.Unité de Catalyse et de Chimie du Solide, UMR CNRS 8181Ecole Nationale Supérieure de Chimie de LilleVilleneuve d’AscqFrance

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