摘要
开发性能优良的阴极材料是降低中低温(500～800℃)固体氧化物燃料电池(IT-SOFCs)成本的关键。回顾了IT-SOFCs阴极材料的最新研究进展。阴极材料对高电子电导率的需要,使钙钛矿结构氧化物及类钙钛矿结构氧化物在该领域的研究占据主导地位。除了电子电导率外,阴极材料的研究正在转向具有高离子电导率的组分,这种要求使具有无序自由氧离子迁移通道的双钙钛矿结构氧化物和在间隙位置可引入过量氧的K2NiF4结构及其它间隙氧化物最近受到极大的重视。
The development of novel cathode materials with excellent electrochemical performance is very im portant to reduce the cost of solid oxide fuel cells （SOFCs）. In this review article, new cathode systems being investigated for application in SOFCs are discussed. For the cathode materials, materials with the perovskite or related structures continue to dominate the field, due to the need for high electronic conductivity. Recently, research in this field is being directed toward compositions allowing high ionic conductivity in addition to their electronic contribution. A site ordering double layered perovskite oxides with excellent oxide ion conductivity, especially, materials allowing the incorporation of oxygen excess into interstitial sites have shown promising results.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2011年第23期9-12,30,共5页
Materials Reports
基金
国家自然基金(50872049)
