Electrochemical performance of Ba0.8Sr0.2Co0.7Fe0.2Nb0.1O3−δ-Ce0.85Sm0.15O1.925 composite cathodes for intermediate temperature solid oxide fuel cells
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- 作者：Fei Hana ; b ; Xiaomei Liua ; xiaomeiliu58@sina.com" class="auth_mail" title="E-mail the corresponding author ; Hailin Bia ; Jialing Suna ; Lili Zhua ; Haopeng Wanga ; Shenglong Yua ; Li Peia
- 关键词：Solid oxide fuel cells ; Ba1&minus ; xSrxCo0.7Fe0.2Nb0.1O3&minus ; δ cathode ; Ba0.8Sr0.2Co0.7Fe0.2Nb0.1O3&minus ; δ&ndash ; Ce0.85Sm0.15O1.925 ; Porosity ; Oxygen reduction reaction process
- 刊名：Journal of Alloys and Compounds
- 出版年：2016
- 出版时间：25 January 2016
- 年：2016
- 卷：656
- 期：Complete
- 页码：604-611
- 全文大小：2581 K
文摘
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New material Ba1−xSrxCo0.7Fe0.2Nb0.1O3−δ are used as cathodes for IT-SOFCs.
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Two processes determine the electrode reaction for BSCFN-30SDC composite cathode.
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Charge transfer process is the rate limiting step at higher PO2.
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Adsorption and dissociation process is the rate limiting step at lower PO2.
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BSCFN-xSDC composite cathode has higher power density than BSCFN cathode.