Synthesis and Thermoelectric Properties of In and Pr Double-Filled Skutterudites InxPryCo4Sb12
Synthesis and Thermoelectric Properties of In and Pr Double-Filled Skutterudites InxPryCo4Sb12
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DOI：
10.1007/s11664-013-2903-6
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发表时间：
2014-02
影响因子：
2.1
通讯作者：
G. Tang;Wenchao Yang;F. Xu;Yun He
中科院分区：
文献类型：
--
作者：
G. Tang;Wenchao Yang;F. Xu;Yun He
利用感应熔融和退火的方法成功制备了具有热电材料应用前景的双填充方晶InxPryCo4Sb12。我们的研究结果表明，与原始或单填充的CoSb3相比，In和Pr双填充有效地提高了电导率和塞贝克系数，并产生了可观的功率因数。在609 K时，In0.05Pr0.05Co4Sb12的最大功率因数为2.33 m Wm−1K−2；这个值大约是InxCo4Sb12（x≤0.3）的三倍。结果表明，In和Pr双填充比In单填充更能有效改善cosb3skutterite的热电性能。
Double-filled skutterudites InxPryCo4Sb12, which are currently being investigated for potential applications as thermoelectric materials, have been successfully prepared by inductive melting and annealing. Our results showed that In and Pr double filling effectively improves both electrical conductivity and Seebeck coefficient compared with pristine or single-filled CoSb3, giving rise to a respectable power factor. The largest power factor, 2.33 m Wm−1K−2, was achieved at 609 K for In0.05Pr0.05Co4Sb12; this value is approximately three times that for InxCo4Sb12(x≤ 0.3) skutterudites. These results imply that In and Pr double filling are better than In single filling for efficient improvement of the thermoelectric properties of CoSb3skutterudite.