Electrochemical promotion of propane deep oxidation on doped lanthanum manganites
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Electrochemical catalysts based on LSM deposited on YSZ were used for propane deep oxidation. Electrochemical characterizations such as impedance spectroscopy and current–overpotential measurements were performed. Different thicknesses of LSM films were catalytically characterized and EPOC experiments were carried out on those electrochemical catalysts. It was found that the reaction rates can be in situ tuned by applying an anodic polarization but with weak promotional effects. The faradaic efficiency decreased as the applied potential, the temperature, and the thickness of the catalyst increased.
KeywordsCatalytic combustion Propane oxidation Impedance spectroscopy Electrochemical catalyst EPOC NEMCA C3H8 LSM Yttria-stabilized zirconia
The work was supported by a grant from CNRS-IFP. The authors want to thank M. Hénault (LEPMI UMR 5631 CNRS-INPG, Saint-Martin-d’Hères) for the fruitful discussions and technical assistance.
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