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Nickel-substituted Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8</sub>Fe<sub>0.2</sub>O<sub>3−δ</sub>: a highly active perovskite oxygen electrode for reduced-temperature solid oxide fuel cells

Lu Li, Hua Yang, Zhenghui Gao, Feifei Dong, Guangming Yang, Meng Ni, Zhan Lin

Journal of Materials Chemistry A · 2019 · 43 citations · 45 references

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Abstract

Nickel substitution contributes to sustained cubic-symmetry perovskite structure and fast oxygen kinetics of Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.7</sub>Fe<sub>0.2</sub>Ni<sub>0.1</sub>O<sub>3−δ</sub> cathode material, enabling superior electrochemical activity and durability for ORR.

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