Revealing the anisotropy in thermoelectric transport performances in CNT/PANI composites

doi:10.1016/j.synthmet.2018.03.004

	Revealing the anisotropy in thermoelectric transport performances in CNT/PANI composites
	Chen, Jikun ; Wang, Liming 1,2; Ren, Dudi 1; Chu, Yanhui 3; Wu, Yong ; Meng, Kangkang ; Miao, Jun ; Xu, Xiaoguang ; Jiang, Yong
刊名	SYNTHETIC METALS
	2018
卷号	239 页码:13
关键词	Thermoelectric Conductive polymer CNT Nano compositing
ISSN号	0379-6779
DOI	10.1016/j.synthmet.2018.03.004
英文摘要	Although the carbon nanotube (CNT) based organic composites thermoelectric materials arouses considerable attentions, up to now the anisotropy in their thermoelectric performances has been overlooked. Herein, strong anisotropy in the temperature-dependent thermal and electrical transport properties have been demonstrated for organic composites thermoelectric materials, made by cold pressing the CNT powders coated by in situ polymerized polyaniline (PAM). The Seebeck coefficient, electrical and thermal conductivity are larger along the direction perpendicular to the cold pressing axis compared to the direction parallel to pressing axis. The anisotropy observed in the thermal conductivity and electrical conductivity maximizes at a CNT content of 30-40% (expressed in mass%), while the one observed for the Seebeck coefficient is small. The highest thermoelectric performances of the thermoelectric composites are achieved at a CNT mass ratio of similar to 40% for both multi-walled CNT (MCNI)/PANI and single-walled CNT (SCNT)/PANI at a direction perpendicular to the cold pressing axis. These results highlight the importance of optimizing the CNT contents during the in situ polymerization with PAM to achieve a homogeneous nanostructure and reducing the agglomerate of the uncoated CNTs, in order to obtain high thermoelectric properties.
学科主题	Materials Science, Multidisciplinary ; Physics, Condensed Matter ; Polymer Science
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000430755100002
资助机构	This work is supported by the Fundamental Research Funds for the Central Universities (USTB), National Natural Science Foundation of China (No. 51602022, No. 61674013, No. 51731003 and No. 51471029). ; This work is supported by the Fundamental Research Funds for the Central Universities (USTB), National Natural Science Foundation of China (No. 51602022, No. 61674013, No. 51731003 and No. 51471029).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24950]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 3.Texas A&M Univ, Dept Ind & Syst Engn, College Stn, TX 77843 USA 4.South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jikun,Wang, Liming,Ren, Dudi,et al. Revealing the anisotropy in thermoelectric transport performances in CNT/PANI composites[J]. SYNTHETIC METALS,2018,239:13, 21.
APA	Chen, Jikun.,Wang, Liming.,Ren, Dudi.,Chu, Yanhui.,Wu, Yong.,...&Jiang, Yong.(2018).Revealing the anisotropy in thermoelectric transport performances in CNT/PANI composites.SYNTHETIC METALS,239,13.
MLA	Chen, Jikun,et al."Revealing the anisotropy in thermoelectric transport performances in CNT/PANI composites".SYNTHETIC METALS 239(2018):13.