An Aurivillius Oxide Based Cathode with Excellent CO2 Tolerance for Intermediate-Temperature Solid Oxide Fuel Cells

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• 作者：Yinlong Zhu ; Prof. Wei Zhou ; Dr. Yubo Chen and Prof. Zongping Shao
• 刊名：Angewandte Chemie
• 出版年：2016
• 出版时间：July 25, 2016
• 年：2016
• 卷：128
• 期：31
• 页码：9134-9139
• 全文大小：2461K
• ISSN：1521-3757

文摘

The Aurivillius oxide Bi₂Sr₂Nb₂MnO_12−δ (BSNM) was used as a cobalt-free cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). To the best of our knowledge, the BSNM oxide is the only alkaline-earth-containing cathode material with complete CO₂ tolerance that has been reported thus far. BSNM not only shows favorable activity in the oxygen reduction reaction (ORR) at intermediate temperatures but also exhibits a low thermal expansion coefficient, excellent structural stability, and good chemical compatibility with the electrolyte. These features highlight the potential of the new BSNM material as a highly promising cathode material for IT-SOFCs.