Electrochemical Removal of NOx-Gasses by Use of LSM-Cathodes Impregnated with a NOx Storage Compound

Marie Lund Traulsen, Kent Kammer Hansen

    Research output: Contribution to journalConference articlepeer-review

    Abstract

    Electrochemical decomposition of NO on La0.85Sr0.15MnO3-- Ce0.90Gd0.10O1.95electrodes with and without KNO3 impregnation is investigated. The KNO3 is added as this compound is expected to work as a NOx-storage compound. Measurements are made in the temperature range 300-400 degree C and in three different atmospheres: 1000 ppm NO, 10% O2 and 1000 ppm NO + 10% O2. Electrochemical impedance spectroscopy and cyclic voltammetry are used for electrochemical characterization of the electrodes, and the conversion of NO and O2 is measured on a mass-spectrometer. The results show a significant increase in the NO-conversion, when KNO3 is added to the La0.85Sr0.15MnO3-- Ce0.90Gd0.10O1.95electrodes. ©2010 COPYRIGHT ECS - The Electrochemical Society
    Original languageEnglish
    JournalE C S Transactions
    Volume28
    Issue number11
    Pages (from-to)193-203
    ISSN1938-5862
    DOIs
    Publication statusPublished - 2010
    Event217th ECS Meeting - Vancouver, Canada
    Duration: 25 Apr 201030 Apr 2010
    Conference number: 217
    http://www.electrochem.org/meetings/biannual/217/217.htm

    Conference

    Conference217th ECS Meeting
    Number217
    Country/TerritoryCanada
    CityVancouver
    Period25/04/201030/04/2010
    Internet address

    Keywords

    • Fuel Cells and Hydrogen
    • Flue gas purification

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