BaIn _0.3 Ti _0.7 O _2.85 / BaIn _0.3 Ti _0.7 O _2.85 ‐Ni Electrolyte/Anode Half Cell for Solid Oxide Fuel Cell Prepared by Reactive Sintering

BaIn _0.3 Ti _0.7 O _2.85 ( BIT07 )/ BIT07 ‐Ni electrolyte/anode half cell was prepared by reactive sintering for solid oxide fuel cells. The precursors were BaCO ₃ , In ₂ O ₃ , and TiO ₂ for electrolyte and BaCO ₃ , In ₂ O ₃ , TiO ₂ , NiO , and carbon black for anode. The bi‐layers were prepared by a multilayer tape casting and co‐firing method. The compositions and microstructures of the phases were studied by X ‐ray powder diffraction and scanning electron microscopy, respectively. The electrolytes were dense with pure perovskite phase with a thickness about 15 μm. The anodes were porous and no obvious reaction was found between NiO and the precursors of BIT07 .