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<p>Solid oxide fuel cells are an alternative renewable energy source with minimal carbon emissions and high efficiency. The cells use gadolinium-doped ceria (Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>1.95</sub>) as the electrolyte due to its high oxide-ion conductivity and good performance at intermediate temperatures. A composite of NiO and Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>1.95</sub> is used as an anode, and (La<sub>0.6</sub>Sr<sub>0.4</sub>)<sub>0.95</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3−δ</sub> and Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>1.95</sub> is used as cathode. The anode-supported cells are fabricated by tape-casting the anode and spray-coating the electrolyte. The anode and electrolyte are co-sintered together at 1450&#xa0;°C for 4&#xa0;h. The cathode is then painted onto the electrolyte and sintered at 1000&#xa0;°C for 2&#xa0;h. The complete cell is studied under real SOFC conditions, using hydrogen (3% H<sub>2</sub>O) as the anode fuel and ambient air at the cathode. The cell has achieved a power density of 102.2 mW cm<sup>− 2</sup>. The fractured surface images of the cells reveal a highly dense electrolyte layer sandwiched between the two porous electrodes.</p> Graphical Abstract <p></p>

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Processing of anode-supported Gd-substituted ceria-based solid oxide fuel cells using an aqueous tape casting route

  • 期刊论文

  • 发表日期：

    2026年3月4日

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  • Taranveer Kaur,
  • K. Singh,
  • Jayant Kolte

摘要

Solid oxide fuel cells are an alternative renewable energy source with minimal carbon emissions and high efficiency. The cells use gadolinium-doped ceria (Ce0.9Gd0.1O1.95) as the electrolyte due to its high oxide-ion conductivity and good performance at intermediate temperatures. A composite of NiO and Ce0.9Gd0.1O1.95 is used as an anode, and (La0.6Sr0.4)0.95Co0.8Fe0.2O3−δ and Ce0.9Gd0.1O1.95 is used as cathode. The anode-supported cells are fabricated by tape-casting the anode and spray-coating the electrolyte. The anode and electrolyte are co-sintered together at 1450 °C for 4 h. The cathode is then painted onto the electrolyte and sintered at 1000 °C for 2 h. The complete cell is studied under real SOFC conditions, using hydrogen (3% H2O) as the anode fuel and ambient air at the cathode. The cell has achieved a power density of 102.2 mW cm− 2. The fractured surface images of the cells reveal a highly dense electrolyte layer sandwiched between the two porous electrodes.

Graphical Abstract