Study on Solvothermal Synthesis and Thermoelectric Properties of Bismuth Telluride Nanopowder AITranslate
Abstract AITranslate
Bismuth telluride nanopowder was synthesized with solvothermal method to prepare thermoelectric material by hot pressing sintering.Phase composition and grain size of the nanopowder and thermoelectric properties of the sintered material were determined and analyzed.The results show that the nanopowder synthesized using TeO2 as tellurium source has higher phase purity,better crystallization properties and smaller grain size than using Te as tellurium source.When solvothermal reaction temperature is 130 ℃ or140 ℃,there are small amount of bismuth and tellurium metallic phases and BiTe phase in the synthesized powder.When the temperature is 150 ℃ or 160 ℃,the synthesized powder consists of pure Bi2Te3 phase,and the synthesized powder at 150 ℃ has smaller grain size and better crystallization properties.Compared with bismuth telluride thermoelectric material prepared by traditional zone melting-hot pressing sintering,the material prepared by solvothermal synthesis-hot pressing sintering has lower thermal conductivity and better comprehensive thermoelectric properties.
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Chinese Library Classification Number:TB383[一般工业技术—材料科学与工程]
Citation Information:
Bismuth telluride nanopowder was synthesized with solvothermal method to prepare thermoelectric material by hot pressing sintering.Phase composition and grain size of the nanopowder and thermoelectric properties of the sintered material were determined and analyzed.The results show that the nanopowder synthesized using TeO2 as tellurium source has higher phase purity,better crystallization properties and smaller grain size than using Te as tellurium source.When solvothermal reaction temperature is 130 ℃ or140 ℃,there are small amount of bismuth and tellurium metallic phases and BiTe phase in the synthesized powder.When the temperature is 150 ℃ or 160 ℃,the synthesized powder consists of pure Bi2Te3 phase,and the synthesized powder at 150 ℃ has smaller grain size and better crystallization properties.Compared with bismuth telluride thermoelectric material prepared by traditional zone melting-hot pressing sintering,the material prepared by solvothermal synthesis-hot pressing sintering has lower thermal conductivity and better comprehensive thermoelectric properties.
quote
| GB/T 7714-2015 | [1] WU Wen-hua, LIU Ji-bo, TANG Jie-xiong, et al. Study on Solvothermal Synthesis and Thermoelectric Properties of Bismuth Telluride Nanopowder[J]. Rare Metals and Cemented Carbides, 2016(1): 65-67. |
| MLA | [1] WU Wen-hua, et al., "Study on Solvothermal Synthesis and Thermoelectric Properties of Bismuth Telluride Nanopowder." Rare Metals and Cemented Carbides, no. 1, 2016, pp. 65-67. |
| APA | [1] WU Wen-hua, LIU Ji-bo, TANG Jie-xiong, WANG Zhi-jian, & SU Zheng-fu. (2016). Study on Solvothermal Synthesis and Thermoelectric Properties of Bismuth Telluride Nanopowder. Rare Metals and Cemented Carbides(1), 65-67. |
| IEEE | [1] WU Wen-hua, LIU Ji-bo, TANG Jie-xiong, WANG Zhi-jian, and SU Zheng-fu, "Study on Solvothermal Synthesis and Thermoelectric Properties of Bismuth Telluride Nanopowder," Rare Metals and Cemented Carbides, no. 1, pp. 65-67, 2016. keywords: {bismuth telluride nanopowder;thermoelectric material;solvothermal synthesis;hot pressing sintering;tellurium source} |