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基于定向纳米线的混合热电材料的制备与表征

Fabrication and characterization of hybrid thermoelectric materials based on aligned nanowires.

作者信息

Lee Min-Jeong, Kim Chae Yoon, Lim Jae-Hong

机构信息

Department of Material Science and Engineering, Gachon University, Seongnam, Republic of Korea.

出版信息

Front Chem. 2024 Sep 26;12:1407129. doi: 10.3389/fchem.2024.1407129. eCollection 2024.

DOI:10.3389/fchem.2024.1407129
PMID:39391833
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11464297/
Abstract

This study introduces the synthesis of a hybrid thermoelectric material with enhanced conductivity and a high Seebeck coefficient, leveraging the properties of Te nanowires (NWs) and the conductive polymer PEDOT:PSS. Te NWs were synthesized using the galvanic displacement reaction. To further enhance conductivity, Ag-Te NWs were synthesized under optimized conditions via the Ag topotactic reaction, achieving desired results within 7 min using ethylene glycol and AgNO. This hybrid material exhibited an electrical conductivity of 463 S/cm, a Seebeck coefficient of 69.5 μV/K at 300 K, and a power factor of 260 μW/mK. These metrics surpassed those of conventional Te/PEDOT:PSS hybrids by a factor of 3.6, highlighting the superior performance of our approach. This study represents a significant advancement in thermoelectric materials, improving both conductivity and efficiency.

摘要

本研究利用碲纳米线(NWs)和导电聚合物聚(3,4-乙撑二氧噻吩):聚苯乙烯磺酸盐(PEDOT:PSS)的特性,介绍了一种具有增强导电性和高塞贝克系数的混合热电材料的合成方法。碲纳米线通过电置换反应合成。为了进一步提高导电性,通过银拓扑化学反应在优化条件下合成了银-碲纳米线,使用乙二醇和硝酸银在7分钟内达到了预期效果。这种混合材料在300K时表现出463 S/cm的电导率、69.5 μV/K的塞贝克系数和260 μW/mK的功率因数。这些指标比传统的碲/聚(3,4-乙撑二氧噻吩):聚苯乙烯磺酸盐混合材料高出3.6倍,突出了我们方法的卓越性能。这项研究代表了热电材料的重大进展,提高了导电性和效率。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/2543b244f58b/fchem-12-1407129-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/39af0fa376c1/fchem-12-1407129-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/a96797a6685f/fchem-12-1407129-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/35f35f04ca69/fchem-12-1407129-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/af785145fb4d/fchem-12-1407129-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/c50e37e5acde/fchem-12-1407129-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/278d607bbad1/fchem-12-1407129-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/89b2e61cad85/fchem-12-1407129-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/cb67c0a52751/fchem-12-1407129-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/2543b244f58b/fchem-12-1407129-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/39af0fa376c1/fchem-12-1407129-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/a96797a6685f/fchem-12-1407129-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/35f35f04ca69/fchem-12-1407129-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/af785145fb4d/fchem-12-1407129-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/c50e37e5acde/fchem-12-1407129-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/278d607bbad1/fchem-12-1407129-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/89b2e61cad85/fchem-12-1407129-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/cb67c0a52751/fchem-12-1407129-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e64c/11464297/2543b244f58b/fchem-12-1407129-g009.jpg

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