Anode-supported SOFCs with Y 2O 3-doped Bi 2O 3/Gd 2O 3-Doped CeO 2 composite electrolyte film

Yongjun Leng, S. H. Chan

    Research output: Contribution to journalArticle

    24 Citations (Scopus)

    Abstract

    Anode-supported solid oxide fuel cells (SOFCs) with a bilayered yttria-doped bismuth (YDB) and gadolinia-doped ceria (GDC) composite electrolyte film were developed. The cell with an YDB/GDC composite electrolyte film (84 μm GDC+16 μm YDB) showed an increase of 68-96 mV in open-circuit voltage in the operating temperature range of 700-500°C, compared with that with a single GDC electrolyte film (∼99 μm). Using Pt as the cathode, the cell with the YDB/GDC composite electrolyte also showed much lower electrode polarization resistance than that with the single GDC electrolyte and almost the same ohmic resistance as the latter. As a result of the combined effects of these factors, the cell with an YDB/GDC composite electrolyte can achieve 0.6∼1.5 times higher maximum power density than that with a single GDC electrolyte in the operating temperature range of 700-500°C.

    Original languageEnglish (US)
    JournalElectrochemical and Solid-State Letters
    Volume9
    Issue number2
    DOIs
    StatePublished - Apr 10 2006

    Fingerprint

    Gadolinium
    Cerium compounds
    solid oxide fuel cells
    gadolinium
    Solid oxide fuel cells (SOFC)
    Electrolytes
    Anodes
    anodes
    Bismuth
    Yttrium oxide
    electrolytes
    composite materials
    bismuth
    Composite materials
    operating temperature
    cells
    Acoustic impedance
    gadolinium oxide
    Open circuit voltage
    open circuit voltage

    All Science Journal Classification (ASJC) codes

    • Chemical Engineering(all)
    • Materials Science(all)
    • Physical and Theoretical Chemistry
    • Electrochemistry
    • Electrical and Electronic Engineering

    Cite this

    @article{e97abb22bd8d413aa193320abda44f1b,
    title = "Anode-supported SOFCs with Y 2O 3-doped Bi 2O 3/Gd 2O 3-Doped CeO 2 composite electrolyte film",
    abstract = "Anode-supported solid oxide fuel cells (SOFCs) with a bilayered yttria-doped bismuth (YDB) and gadolinia-doped ceria (GDC) composite electrolyte film were developed. The cell with an YDB/GDC composite electrolyte film (84 μm GDC+16 μm YDB) showed an increase of 68-96 mV in open-circuit voltage in the operating temperature range of 700-500°C, compared with that with a single GDC electrolyte film (∼99 μm). Using Pt as the cathode, the cell with the YDB/GDC composite electrolyte also showed much lower electrode polarization resistance than that with the single GDC electrolyte and almost the same ohmic resistance as the latter. As a result of the combined effects of these factors, the cell with an YDB/GDC composite electrolyte can achieve 0.6∼1.5 times higher maximum power density than that with a single GDC electrolyte in the operating temperature range of 700-500°C.",
    author = "Yongjun Leng and Chan, {S. H.}",
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    Anode-supported SOFCs with Y 2O 3-doped Bi 2O 3/Gd 2O 3-Doped CeO 2 composite electrolyte film. / Leng, Yongjun; Chan, S. H.

    In: Electrochemical and Solid-State Letters, Vol. 9, No. 2, 10.04.2006.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Anode-supported SOFCs with Y 2O 3-doped Bi 2O 3/Gd 2O 3-Doped CeO 2 composite electrolyte film

    AU - Leng, Yongjun

    AU - Chan, S. H.

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    Y1 - 2006/4/10

    N2 - Anode-supported solid oxide fuel cells (SOFCs) with a bilayered yttria-doped bismuth (YDB) and gadolinia-doped ceria (GDC) composite electrolyte film were developed. The cell with an YDB/GDC composite electrolyte film (84 μm GDC+16 μm YDB) showed an increase of 68-96 mV in open-circuit voltage in the operating temperature range of 700-500°C, compared with that with a single GDC electrolyte film (∼99 μm). Using Pt as the cathode, the cell with the YDB/GDC composite electrolyte also showed much lower electrode polarization resistance than that with the single GDC electrolyte and almost the same ohmic resistance as the latter. As a result of the combined effects of these factors, the cell with an YDB/GDC composite electrolyte can achieve 0.6∼1.5 times higher maximum power density than that with a single GDC electrolyte in the operating temperature range of 700-500°C.

    AB - Anode-supported solid oxide fuel cells (SOFCs) with a bilayered yttria-doped bismuth (YDB) and gadolinia-doped ceria (GDC) composite electrolyte film were developed. The cell with an YDB/GDC composite electrolyte film (84 μm GDC+16 μm YDB) showed an increase of 68-96 mV in open-circuit voltage in the operating temperature range of 700-500°C, compared with that with a single GDC electrolyte film (∼99 μm). Using Pt as the cathode, the cell with the YDB/GDC composite electrolyte also showed much lower electrode polarization resistance than that with the single GDC electrolyte and almost the same ohmic resistance as the latter. As a result of the combined effects of these factors, the cell with an YDB/GDC composite electrolyte can achieve 0.6∼1.5 times higher maximum power density than that with a single GDC electrolyte in the operating temperature range of 700-500°C.

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