Tailoring electronic structure of perovskite cathode for proton-conducting solid oxide fuel cells with high performance

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成果类型：

期刊论文

作者：

Xu, Xi;Xu, Yangsen;Ma, Jinming;Yin, Yanru;Fronzi, Marco;...

通讯作者：

Bi, Lei

作者机构：

[Bi, Lei; Yin, Yanru; Xu, Yangsen; Xu, Xi] Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Peoples R China.

[Wang, Xianfen; Xu, Yangsen; Xu, Xi; Ma, Jinming] Qingdao Univ, Coll Mat Sci & Engn, Inst Mat Energy & Environm, Ningxia Rd 308, Qingdao 266071, Peoples R China.

[Fronzi, Marco] Shibaura Inst Technol, IGP Coll Engn, Toyosu, Tokyo, Japan.

[Fronzi, Marco] Shibaura Inst Technol, SIT Res Labs, Toyosu, Tokyo, Japan.

[Fronzi, Marco] Univ Technol Sydney, Sch Math & Phys Sci, Ultimo, NSW 2007, Australia.

通讯机构：

[Bi, Lei] U

Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Peoples R China.

语种：

英文

关键词：

Cathode materials;Cathodes;Electric fields;Electrolytic reduction;Electronic structure;Ionization of gases;Iron compounds;Lanthanum compounds;Molybdenum compounds;Oxygen;Oxygen vacancies;Perovskite;Strontium compounds;Cathode performance;Electric field induced;Metal-oxygen bonds;Oxygen Reduction;Perovskite oxides;Proton conducting;Proton migration;Proton-conducting solid oxide fuel cells;Solid oxide fuel cells (SOFC)

期刊：

Journal of Power Sources

ISSN：

0378-7753

年：

2021

卷：

489

页码：

229486

DOI：

10.1016/j.jpowsour.2021.229486

基金类别：

This work was supported by the National Natural Science Foundation of China (Grant No.: 51972183 ), the Natural Science Foundation of Shandong Province (Grant No.: ZR2018JL017 ), the Key Research and Development Program of Shandong Province (Grant No.: 2019GGX103020 ).

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本校为第一且通讯机构

摘要：

Tailoring the electronic structure of the perovskite oxide could potentially allow dramatic improvements in the properties of cathode materials in proton-conducting solid oxide fuel cells (SOFCs). This has been demonstrated in the case of Mo-doped La0.5Sr0.5FeO3-δ, where the electronic structure of the La0.5Sr0.5FeO3-δ oxide has been changed with the Mo-doping, leading to a less strong metal-oxygen bond as well as a more active surface towards oxygen reduction. As a result, the more active oxygen atoms make the formation of oxygen vacancy and...

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Tailoring electronic structure of perovskite cathode for proton-conducting solid oxide fuel cells with high performance

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