Fabrication and characteristics of anode as an electrolyte reservoir for molten carbonate fuel cell

Ju Young Youn, Sung Pil Yoon, Jonghee Han, Suk Woo Nam, Tae Hoon Lim, Seong Ahn Hong, Kwan Young Lee

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    In order to design the anode of a molten carbonate fuel cell (MCFC) to serve as an additional electrolyte reservoir, the surface of a conventional Ni-10 wt.% Cr anode is modified with bohemite sol by means of a dip-coating method. After coating the bohemite sol on the nickel surface, the surface layer is change into lithium aluminate particles during the course of cell operation. This results in good electrolyte wettability compared with a bare nickel surface. Consequently, the surface modification makes it possible to increase the electrolyte filling contents in the anode pores from 25-30 to 50-60 vol.%. In addition, the anti-sintering ability is induced due to the presence of lithium aluminate particles between the nickel particles. These findings show that the surface modification can increase both the structural stability and the electrolyte loading of the anode.

    Original languageEnglish
    Pages (from-to)121-127
    Number of pages7
    JournalJournal of Power Sources
    Volume157
    Issue number1
    DOIs
    Publication statusPublished - 2006 Jun 19

    Keywords

    • Anode
    • Electrolyte reservoir
    • Molten carbonate fuel cell
    • Sol-gel coating
    • Structural stability
    • Surface modification
    • Wettability

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Energy Engineering and Power Technology
    • Physical and Theoretical Chemistry
    • Electrical and Electronic Engineering

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