钴基氧化物热电材料掺杂研究进展  

Research Progress About Elements Doping for Cobalt-based Oxides Thermoelectric Materials

作　　者：卢喜凤 郜超军[1] 郭娟[1] 王世举[1] 侯晓强[1] 

机构地区：[1]郑州大学物理工程学院,郑州450001

出　　处：《材料导报》2015年第13期40-43,57,共5页Materials Reports

基　　金：国家自然科学基金(51302249)

摘　　要：氧化物热电材料是近年研究的热点之一,钴氧化物因具有优良的高温稳定性、抗氧化性、低成本和易于大规模生产等优点而受到人们的广泛关注,被认为是很有使用价值的热电材料,很多学者在此方面进行了大量的研究。详细介绍了元素掺杂对热电性能的影响,从物理机制上分析了掺杂元素的半径和价态对Ca3Co4O9和NaxCo2O4热电性能的影响,为热电材料的进一步研究提供了依据。Oxide thermoelectric materials is one of the research hot spots in recent years,in which cobalt oxides have attracted considerable attention and been considered as a very useful thermoelectric material due to their high tem-perature stability,oxidation resistance,low cost and ease of mass production.There are a lot of works which have been done in this field.Herein,the effects of doped elements on the thermoelectric properties of Ca3 Co4 O9 and Nax Co2 O4 are reviewed.In addition,the physical mechanism of thermoelectric properties is discussed in terms of the radius and valence state of doped ions,which provides the basis for the further study of thermoelectric materials.

关 键 词：钴基氧化物 元素掺杂 热电性能 

分 类 号：TM20[一般工业技术—材料科学与工程]