Influence of chemical functionalization on the thermoelectric properties of monodispersed single-walled carbon nanotubes

doi:10.1007/s10853-018-2063-4

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 微纳制造与系统集成研究中心

	Influence of chemical functionalization on the thermoelectric properties of monodispersed single-walled carbon nanotubes
	Piao, Mingxing; Li, Chaolong; Chu, Jin; Wang, Xiao; Zhang, Heng; Chi, Yao
刊名	JOURNAL OF MATERIALS SCIENCE
	2018-05-01
卷号	53 期号:10 页码:7648-7656
ISSN号	0022-2461
DOI	10.1007/s10853-018-2063-4
英文摘要	Single-walled carbon nanotubes (SWCNTs) networks have attracted great attention for electronic and energy-harvesting applications, including thermoelectric (TE) devices. However, the simultaneous production of metallic SWCNTs (m-SWCTNs) and semiconducting SWCNTs (s-SWCNTs) randomly with distinct electronic structures always hinders the specific usage. The investigation of the influence of different electronic structures by nature or artificially on the TE performances of monodispersed SWCNTs is significative. In this report, high purity of separated m- and s-SWCNTs was chemically functionalized with 4-bromobenzene diazonium tetrafluoroborate, leading to the hybridization of C atoms changed from sp (2) to sp (3). The influence of the electronic type of SWCNTs on the TE properties as a function of the modifier agent was systematically investigated. As a consequence, the maximum power factor of s-SWCNTs networks was as high as 244.2 mu W m(-1) K-2 under the optimal condition, whereas it was only 5.3 mu W m(-1) K-2 for m-SWCNTs networks. In addition, grafting of functional groups onto the sidewall of nanotubes was predicted to further decrease the thermal conductivity, which is beneficial to increment of the ZT values. Based on these results, we believe that the pure s-SWCNTs and a variety of chemically functionalized composites have great potential as candidate for TE applications.
资助项目	National Natural Science Foundation of China[51602306] ; Venture & Innovation Support Program for Chongqing Overseas Returnees
WOS研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000426298900043
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/6253]
专题	微纳制造与系统集成研究中心
通讯作者	Piao, Mingxing
作者单位	Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Piao, Mingxing,Li, Chaolong,Chu, Jin,et al. Influence of chemical functionalization on the thermoelectric properties of monodispersed single-walled carbon nanotubes[J]. JOURNAL OF MATERIALS SCIENCE,2018,53(10):7648-7656.
APA	Piao, Mingxing,Li, Chaolong,Chu, Jin,Wang, Xiao,Zhang, Heng,&Chi, Yao.(2018).Influence of chemical functionalization on the thermoelectric properties of monodispersed single-walled carbon nanotubes.JOURNAL OF MATERIALS SCIENCE,53(10),7648-7656.
MLA	Piao, Mingxing,et al."Influence of chemical functionalization on the thermoelectric properties of monodispersed single-walled carbon nanotubes".JOURNAL OF MATERIALS SCIENCE 53.10(2018):7648-7656.