以Ni作为添加元素,利用放电等离子技术制备了NixCo4-xSb12(x=0-0.35)化合物热电材料.通过先进的性能表征手段,深入探讨了NixCo4-xSb12化合物的热电性能,为n型热电材料的研究提供了有价值的参考.实验结果表明,一定量Ni的添加,能有效改善材料热电性能,提高热电优值;在Ni添加量x=0.2时,Ni0.2Co3.8Sb12化合物在温度T=773K时具有最大的热电性能优值ZTmax=0.45.
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