Fabrication of high-performance carbon nanotube/copper composite fibers by interface thiol-modification. (9th July 2022)

• Record Type: Journal Article
• Authors: Guo, Lei; Li, Huifang; Liu, Dandan; Zhou, Yurong; Dong, Lizhong; Zhu, Siqi; Wu, Yulong; Yong, Zhenzhong; Kang, Lixing; Jin, Hehua; Li, Qingwen
• Is Part Of: Nanotechnology. Volume 33:Number 28(2022)
• Publication Date: 2022-07-09
• Subjects: carbon nanotube fiber -- carbon nanotube/copper composite fiber -- interface modification -- electrical performance; Nanotechnology -- Periodicals; Nanotechnology -- Periodicals; Nanotechnology; Publications périodiques; Nanotechnologies; Periodicals; 620.5
• DOI: 10.1088/1361-6528/ac652b
• Languages: English
• ISSNs: 0957-4484

Abstract

Abstract: Carbon nanotube (CNT)/copper (Cu) composite fibers are placed great expectations as the next generation of light-weight, conductive wires. However, the electrical and mechanical performances still need to be enhanced. Herein, we demonstrate a strategy that is electrodeposition Cu on thiolated CNT fibers to solve the grand challenge which is enhancing the performance of CNT/Cu composite fibers. Thiol groups are introduced to the surface of the CNT fibers through a controllable O2 plasma carboxylation process and amide reaction. Compared with CNT/Cu composite fibers, there are 82.7% and 29.6% improvements in electrical conductivity and tensile strength of interface thiol-modification composite fibers. The enhancement mechanism is also explored that thiolated CNT fibers could make strong interactions between Cu and CNT, enhancing the electrical and mechanical performance of CNT/Cu composites. This work proposes a convenient, heat-treatment-free strategy for high-performance CNT/Cu composite fibers, which can be manufactured for large-scale production and applied to next-generation conductive wires.