钴基氧化物热电材料研究现状与展望

Recent progress of Co-based oxide thermoelectric materials

综述了钴基氧化物热电材料国内外研究新进展,着重介绍NaxCo2O4热电材料的晶体结构、热电性能及制备方法;并对Ca-Co-O系列的CaCo2O4、Ca2Co2O5、Ca3Co2O6、Ca3Co4O9和Ca9Co12O28共5种不同结构的热电材料及Bi2Sr3Co2Oy、稀土系钴基氧化物RCoO3等氧化物热电材料作了介绍。还总结了为提高热电性能而进行的掺杂研究。最后展望了氧化物热电材料的发展前景。

The paper reviewed the progress of Co-based oxide thermoelectric materials, specially the crystal structure, thermoelectric properties and preparation method of NaXCo2O4. It also introduced five types of CaCo-based oxide thermoelectric materials： CaCo2O4,Ca2Co2O5,Ca3Co2O6, Ca3Co4O9, Ca9Co12O28. It summarized the doping of Ag, Ba,Ca,La in naco2o4 and the doping of Na,La,Sr in Ca3Co4O9 in order to improve the thermoelectric properties. The prospect of Co-based oxide thermoelectric materials was discussed.