In the present work, single phase CoSb₃ skutterudite nanomaterials were prepared via a ball milling method, and their thermoelectric characteristics were compared with the samples synthesized by the solvo-hydrothermal method. Thermoelectric transport properties were recorded in the temperature regime of 300–830 K. Both samples exhibit p-type conduction behavior with a positive sign of Seebeck coefficient. CoSb₃ ball mill sample exhibit higher resistivity of 127 × \({10}^{-5}\)Ω.m at 300 K as compared to CoSb₃ solvo-hydrothermal sample with 4.85 × \({10}^{-5}\)Ω.m. However, CoSb₃ ball mill sample show enhanced Seebeck coefficient of 183µ V/K at 473 K where CoSb₃ solvo-hydrothermal sample depict 98 µ V/K at 650 K. Furthermore, the total thermal conductivity of sintered CoSb₃ ball mill and CoSb₃ solvo-hydrothermal samples was found to be 3.02 Wm⁻¹K⁻¹ and 3.23 W m⁻¹K⁻¹ at room temperature and reaches a significantly lower value of 2.47 W m⁻¹K⁻¹ and 2.46 W m⁻¹K⁻¹ at 580 and 670 K, respectively. The dimensionless figure of merit ZT values of CoSb₃ ball mill and CoSb₃ solvo-hydrothermal obtained are 0.053 and 0.060 at 650 and 700 K, respectively. A systematic tuning of processing parameters by ball milling method can lead to better thermoelectric efficiency.

本工作采用球磨法制备了单相CoSb _{3方钴矿纳米材料，并将其热电特性与溶剂水热法合成的样品进行了比较。}在 300–830 K 的温度范围内记录了热电传输特性。两个样品均表现出 p 型传导行为，塞贝克系数为正值。CoSb ₃球磨机样品在 300 K 时表现出更高的电阻率，为 127 ×  \({10}^{-5}\) Ω.m，而 CoSb ₃溶剂热液样品的电阻率为 4.85 ×  \({10}^{-5) }\) Ω.m。然而，CoSb ₃球磨机样品在 473 K 时显示出 183μ V/K 的增强塞贝克系数，其中 CoSb ₃溶剂热液样品在 650 K 时显示出 98 µ V/K。此外，烧结 CoSb ₃球磨机和 CoSb的总热导率发现_3个溶剂热液样品在室温下为3.02 Wm ^-1 K ^-1和3.23 W m ^-1 K ^{-1并达到明显较低的值2.47 W m -1} K ^-1和2.46 W m ^-1 K 580 K 和 670 K 时分别为^-1。_{CoSb 3}球磨机和CoSb ₃溶剂水热法获得的无量纲品质因数ZT值在650和700 K下分别为0.053和0.060。通过球磨方法系统地调整加工参数可以带来更好的热电效率。