| Solvothermal synthesis of nanosized CoSb_3 skutterudite |
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| 作者姓名： | 谢健 赵新兵 糜建立 曹高劭 涂江平 |
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| 作者单位： | State Key Laboratory of Silicon Materials，Zhejiang University，Hangzhou 310027，China，State Key Laboratory of Silicon Materials，Zhejiang University，Hangzhou 310027，China，State Key Laboratory of Silicon Materials，Zhejiang University，Hangzhou 310027，China，State Key Laboratory of Silicon Materials，Zhejiang University，Hangzhou 310027，China，State Key Laboratory of Silicon Materials，Zhejiang University，Hangzhou 310027，China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina(No.50171064)
theHi-TechResearchandDevelopmentProgram(863)ofChina(No.2002AA302406) |
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| 摘 要： | Nanostructures enhance phonon scattering and improve the figure of merit of thermoelectric materials. Nanosized CoSb3 skutterudite was synthesized by solvothermal methods using CoCl2 and SbCl3 as the precursors. A "two-step" model was suggested for the formation of CoSb3 based on the X-ray diffraction analysis. The first step is the formation of cobalt diantimonide in the earlier stage during the synthesis process. Diantimonide was then combined with antimony atoms to form the skutterudite structured triantimonide, CoSb3, in the later stage of the synthesis process as the second step. The synthesized CoSb3 powders consist of irregular particles with sizes of about 20 nm and sheets of about 80nm.
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Solvothermal synthesis of nanosized CoSb_3 skutterudite |
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| XIE Jian,ZHAO Xin-bing I Jian-li,CAO Gao-shao,TU Jiang-ping.Solvothermal synthesis of nanosized CoSb_3 skutterudite[J].Journal of Zhejiang University Science,2004(12). |
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| Authors: | XIE Jian ZHAO Xin-bing I Jian-li CAO Gao-shao TU Jiang-ping |
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| Abstract: | Nanostructures enhance phonon scattering and improve the figure of merit of thermoelectric materials. Nanosized CoSb3 skutterudite was synthesized by solvothermal methods using CoCl2 and SbCl3 as the precursors. A "two-step" model was suggested for the formation of CoSb3 based on the X-ray diffraction analysis. The first step is the formation of cobalt diantimonide in the earlier stage during the synthesis process. Diantimonide was then combined with antimony atoms to form the skutterudite structured triantimonide, CoSb3, in the later stage of the synthesis process as the second step. The synthesized CoSb3 powders consist of irregular particles with sizes of about 20 nm and sheets of about 80nm. |
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| Keywords: | Skutterudite Solvothermal synthesis Nanosized materials |
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