朱红玉,杨曼曼,李洪涛,杜景阳,李尚升,胡美华,胡强,杜保立,宿太超.高压制备CoSbS1-xSex(x=0~0.3)的热电性能[J].稀有金属材料与工程,2020,49(4):1422~1426.[Zhu Hongyu,Yang Manman,Li Hongtao,Du Jingyang,Li Shangsheng,Hu Meihua,Hu Qiang,Du Baoli,Su taichao.High Pressure Synthesis and Thermoelectric Performance of CoSbS1-xSex(x=0~0.3)[J].Rare Metal Materials and Engineering,2020,49(4):1422~1426.]
高压制备CoSbS1-xSex(x=0~0.3)的热电性能
投稿时间:2018-12-28  修订日期:2019-04-09
中文关键词:  CoSbS  高压  热电材料
基金项目:河南省自然科学基金(182300410248);河南理工大学杰出青年基金(J2016-5);中华人民共和国上海海关科研计划项目(HK012-2018 HK012-2018);国家自然科学基金资助(51772076)
中文摘要:
      副钴锑硫矿(CoSbS)基热电材料,因其组成元素廉价、环境友好等优点,近期受到人们的广泛关注。但由于其具有较高的热导率限制了热电性能,此外,常规方法制备该材料的周期较长,工艺较为繁琐。本文利用一步高压烧结方法制备了CoSbS1-xSex基固溶体合金,测试并分析了其结构和热电性能。结果表明,高压能够加快反应速率,快速制备出单相CoSbS化合物;加入少量Se能够同步优化三个热电参数:即提高Seebeck系数,降低电阻率和热导率。在673 K时,CoSbS0.8Se0.2具有最大的品质因子ZT~0.25,约为母体材料CoSbS的4倍,而且在相同温度条件下高压合成样品的ZT远高于传统方法(固相反应结合放电等离子体烧结)制备CoSbS1-xSex的数值。这些结果表明,高压方法是制备CoSbS基热电材料的一种有效方法。
High Pressure Synthesis and Thermoelectric Performance of CoSbS1-xSex(x=0~0.3)
英文关键词:CoSbS  High pressure  Thermoelectric material
英文摘要:
      Paracostibite (CoSbS), as a thermoelectric material, has attracted much attention recently. It has many advantages such as low cost and environment-friendly. However, the thermoelectric performance is limited by the high thermal conductivity. In addition, the preparation of this material need a long-duration heating process and a complicated process by conventional method. In this paper, CoSbS1-xSex based solid solution alloys were facile and rapidly prepared by one-step high pressure method. Their structures and thermoelectric properties were investigated. The results show that high pressure can accelerate the reaction rate and fabricate single-phase CoSbS quickly. Alloying with a small amount of Se can simultaneously optimize three thermoelectric parameters: increasing Seebeck coefficient, reducing resistivity and thermal conductivity. CoSbS0.8Se0.2 has the largest figure of merit ZT~0.25 at 673 K, which is about four times as much as that of the parent material CoSbS. Moreover, the ZT of high-pressure synthesized samples at the same temperature is higher than that of CoSbS1-xSex prepared by the traditional solid-state reaction combined with spark plasma sintering method. These results indicate that high pressure method is an effective method for preparing CoSbS based thermoelectric materials.
作者单位E-mail
朱红玉 河南理工大学物理电子与信息学院 zhuhy@hpu.edu.cn 
杨曼曼 河南理工大学  
李洪涛 中华人民共和国上海海关  
杜景阳 河南理工大学  
李尚升 河南理工大学  
胡美华 河南理工大学  
胡强 河南理工大学物理电子与信息学院  
杜保立 河南理工大学物理电子与信息学院  
宿太超 河南理工大学材料科学与工程学院 stc@hpu.edu.cn 
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