Nanosized La filled CoSb3 prepared by a solvothermal-annealing method

被引：24
|
作者：
Mi, J. L. [1 ]
Zhao, X. B. [1 ]
Zhu, T. J. [1 ]
Tu, J. P. [1 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
来源：
MATERIALS LETTERS | 2008年 / 62卷 / 16期
基金：
中国国家自然科学基金;
关键词：
skutterudite; electrical properties; nanomaterials; thermoelectric materials;
D O I：
10.1016/j.matlet.2007.11.088
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanostructuring is one of the effective approaches to lower the thermal conductivity of materials. Nanosized La filled CoSb(3) was successfully synthesized by a solvothermal-annealing method. It shows that the La atoms were filled into the lattice cages during the annealing process. The average size of the powders after annealing process is about 20 nm, a little larger than the solvothermally prepared powders. The bulk sample was prepared by hot pressing. Electrical properties measurements were performed and the highest power factor is about 0.43 x 10(-3) Wm(-1)K(-2) obtained at 520 K. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：2363 / 2365
页数：3
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