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Investigation of Novel Anode NiO-La0.3Ce0.7O2-δ of IT-SOFC with LSGM-based Electrolyte

ZHU Xiao-Dong1, SUN Ke-Ning1*, ZHANG Nai-Qing1,2, CHEN Xin-Bing1, FU Qiang1, JIA De-Chang2   

    1. Department of Applied Chemistry,
    2. The Research Station on Material Science and Engineering for Postoral Fellows, Harbin Institute of Technology, Harbin 150001, China
  • Received:2006-06-05 Revised:1900-01-01 Online:2007-05-10 Published:2007-05-10
  • Contact: SUN Ke-Ning

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Abstract: NiO-La0.3Ce0.7O2-δ(LDC30) novel anode was investigated for IT-SOFCs(Intermediate Temperature-Solid Oxide Fuel Cells) with LaGaO3-based electrolyte. The results showed that LDC30 has a suitable chemical compatibility with NiO and NiO-LDC30 has a good thermal expansion matching with LDC30 interlayer and LSGM(La0.8Sr0.2Ga0.8Mg0.2O3-δ) electrolyte, so NiO-LDC30/LDC30 was considered as a feasible and novel anode system. It was also shown that NiO content plays a key role on polarization performance and morphology of the anode. When the content of NiO was 60%(mass fraction), the polarization loss of anode was the lowest. Next we will optimize the porosity and sintering procedure to modify the microstructure and performance of the anode.

Key words: NiO-La0.3Ce0.7O2-δ, La0.8Sr0.2Ga0.8Mg0.2O3-δ, Interlayer, Intermediate Temperature-Solid Oxide Fuel Cells(IT-SOFC)

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