Nano-metal dispersed anode of intermediate-temperature SOFC for high power density operation

Satoshi Awatsu, Hitomi Iwasaki, Keiko Isono, Norihisa Chitose, Gakuji Uozumi, Toru Inagaki, Tatsumi Ishihara

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

    2 Citations (Scopus)

    Abstract

    Improvements in the anode and the fuel side current collector have been carried out in order to increase the output power of the intermediate- temperature (IT) solid oxide fuel cells (SOFCs) using lanthanum gallate electrolyte. Dispersion of nano-size metal in the cermet anode composed of Sm doped ceria (SDC) and Ni has been tried. As a source material to manufacture the novel anode, SDC powder incorporated with nano-size Ru particles was developed. In order to achieve in-situ production of hydrogen inside the cell-stack, fuel side current collectors were impregnated with catalyst metals such as Ru or Ni. It was demonstrated experimentally that the developed current collectors have high catalytic activity for steam reforming reaction of methane and also have favorable effect in increasing the power density. Replacement of the dopant in ceria from Sm to Gd is also tested both for the anode and the fuel side current collector.

    Original languageEnglish
    Title of host publicationECS Transactions - 10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
    Pages1583-1589
    Number of pages7
    Edition1 PART 2
    DOIs
    Publication statusPublished - Dec 1 2007
    Event10th International Symposium on Solid Oxide Fuel Cells, SOFC-X - , Japan
    Duration: Jun 3 2007Jun 8 2007

    Publication series

    NameECS Transactions
    Number1 PART 2
    Volume7
    ISSN (Print)1938-5862
    ISSN (Electronic)1938-6737

    Other

    Other10th International Symposium on Solid Oxide Fuel Cells, SOFC-X
    Country/TerritoryJapan
    Period6/3/076/8/07

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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