Abstract / Full Text

The bilayered supports for anode-supported solid oxide fuel cells (SOFCs) based on composites of NiO and ZrO2 stabilized by 10 mol % Sc2O3 and 1 mol % Y2O3 (10Sc1YSZ) are synthesized by tape casting. The required porosity is attained by optimization of the content of pore-forming agent (starch) in the initial suspension and also by thermal treatment, on retention of the high strength characteristics of the substrate. The mechanical strength of supports is assessed by three-point bending method. The bilayered gas-tight electrolyte with the layers of ZrO2 stabilized by Y2O3 (8 mol %) (8YSZ) and Ce0.9Gd0.1O1.95 is obtained by magnetron sputtering followed by annealing at 1200°С. Studying the electrochemical characteristics of a SOFC with the La0.6Sr0.4CoO3 − δ cathode has shown that as the working temperature decreases, the contribution of electrode processes into cell’s internal resistance increases which induces the specific power decrease down to 1.8, 1.4, and 0.9 W/cm2 at 850, 800, and 750°С, respectively.

Author information
  • Osipyan Institute of Solid State Physics RAS, 142432, Chernogolovka, Moscow oblast, Russia

    E. A. Agarkova, I. N. Burmistrov, D. A. Agarkov & S. I. Bredikhin

  • Moscow Institute of Physics and Technology, 141701, Dolgoprudnyi, Moscow oblast, Russia

    D. A. Agarkov

  • NEVZ-Ceramics, 630048, Novosibirsk, Russia

    O. Yu. Zadorozhnaya & Yu. K. Nepochatov

  • Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, Russia

    A. A. Solov’ev & A. V. Shipilova

  • INESYS Ltd., EFKO Group, 115035, Moscow, Russia

    M. N. Levin

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