KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Synthesis and thermoelectric properties of Nd-single filled p-type skutterudites | |
Wu, Hong1,2; Shaheen, Nusrat1; Yang, Heng-Quan1; Peng, Kun-Ling1,2; Shen, Xing-Chen1,2; Wang, Guo-Yu2 ; Lu, Xu1; Zhou, Xiao-Yuan1
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| 2018-04-01 | |
| 摘要 | We report the synthesis of Nd-filled and Fe substituted p-type NdxFe3.2Co0.8Sb12 (x = 0.5, 0.6, 0.7, 0.8, and 0.9) skutterudites by the solid-state reaction method. The influences of Nd filler on the electrical and thermal transport properties are investigated in a temperature range from room temperature to 850 K. A lowest lattice thermal conductivity of 0.88 W.m(-1) . K-1 is obtained in Nd0.8Fe3.2Co0.8Sb12 at 673 K, which results from the localized vibration modes of fillers and the increase of grains boundaries. Meanwhile, the maximum power factor is 2.77 mW.m(-1) . K-2 for the Nd0.9Fe3.2Co0.8Sb12 sample at 668 K. Overall, the highest dimensionless figure of merit zT = 0.87 is achieved at 714 K for Nd0.9Fe3.2Co0.8Sb12. |
| 关键词 | thermoelectric p-type skutterudites neodymium filler lattice thermal conductivity |
| DOI | 10.1088/1674-1056/27/4/047203 |
| 发表期刊 | CHINESE PHYSICS B
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| ISSN | 1674-1056 |
| 卷号 | 27期号:4页码:5 |
| 收录类别 | SCI |
| WOS记录号 | WOS:000430619900003 |
| 语种 | 英语 |
