Cobalt‐Free Perovskite Cathodes for Solid Oxide Fuel Cells | Zendy

Hashim Siti Salwa | Zendy; Liang Fengli | Zendy; Zhou Wei | Zendy; Sunarso Jaka | Zendy

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Cobalt‐Free Perovskite Cathodes for Solid Oxide Fuel Cells

Author(s) -

Hashim Siti Salwa,

Liang Fengli,

Zhou Wei,

Sunarso Jaka

Publication year - 2019

Publication title -

chemelectrochem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 59

ISSN - 2196-0216

DOI - 10.1002/celc.201900391

Subject(s) - cobalt , cathode , perovskite (structure) , materials science , electrochemistry , oxide , polarization (electrochemistry) , chemical engineering , cobalt oxide , ionic bonding , fuel cells , thermal expansion , inorganic chemistry , electrode , chemistry , metallurgy , ion , organic chemistry , engineering

The past decade has observed rapid growth in the development of cobalt‐free perovskite cathodes, which provide enhanced structure and operational stability at the operating temperature of intermediate temperature solid oxide fuel cells (IT‐SOFC, 600–800 °C) compared to its cobalt‐containing counterpart. This Review aims to present a comprehensive overview on the status and advances of the existing cobalt‐free perovskite cathodes for IT‐SOFCs by discussing electrochemical behaviors, thermal expansion properties, stabilities as well as the oxygen ionic and the electronic transport properties of these cobalt‐free perovskite cathode compositions, with primary emphasis on the relationship between the electrochemical performances and the materials science‐related factors. Among various cobalt‐free perovskite cathodes presented in this Review, niobium‐doped compositions generally show lower polarization resistances relative to other cathode compositions.

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