Exsolution of nano metal particle on anode for increased performance at low temperature operation

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Spinel oxide (CuFe2O4) has been studied as anode for solid oxide fuel cells. Although CuFe2O4 spinel structure was decomposed by reduction atmosphere observed by SEM-EDX, TEM-EDX and XRD, the decomposed CuFe2O4 became metallic phase with the exsolved nano size alloy particles, which were composite of Cu rich Cu-Fe and Fe rich Fe-Cu metal on anode. According to power generation properties, alloy anode formed from CuFe2O4 showed the maximum power density (MPD) of 611 mW/cm2 at 1073 K and 101 mW/cm2 at 873 K. Comparing to Ni-Fe (9:1 wt.%) alloy anode, alloy anode from CuFe2O4 reduction showed significantly decreased anodic polarization resistance, which was measured by impedance spectroscope and so high power density was assigned to nano alloy particles.

    Original languageEnglish
    Title of host publicationSolid Oxide Fuel Cells 16, SOFC 2019
    EditorsK. Eguchi, S. C. Singhal
    PublisherElectrochemical Society Inc.
    Pages1915-1922
    Number of pages8
    Edition1
    ISBN (Electronic)9781607688747
    DOIs
    Publication statusPublished - 2019
    Event16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
    Duration: Sep 8 2019Sep 13 2019

    Publication series

    NameECS Transactions
    Number1
    Volume91
    ISSN (Print)1938-6737
    ISSN (Electronic)1938-5862

    Conference

    Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
    CountryJapan
    CityKyoto
    Period9/8/199/13/19

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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