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Chemical Method for Improving Both the Electrical Conductivity and Mechanical Properties of Carbon Nanotube Yarn via Intramolecular Cross-Dehydrogenative Coupling
- Authors
- Choi, Yong-Mun; Choo, Hungo; Yeo, Hyeonuk; You, Nam-Ho; Lee, Dons Su; Ku, Bon-Cheol; Kim, Hwan Chul; Bong, Pill-Hoon; Jeong, Youngjin; Goh, Munju
- Issue Date
- 28-Aug-2013
- Publisher
- AMER CHEMICAL SOC
- Keywords
- carbon nanotube fiber; FeCl3; intramolecular cross-dehydrogenative coupling
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.5, no.16, pp.7726 - 7730
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 5
- Number
- 16
- Start Page
- 7726
- End Page
- 7730
- ISSN
- 1944-8244
- Abstract
- Chemical post-treatment of the carbon nanotube fiber (CNTF) was carried out via intramolecular cross-dehydrogenative coupling (ICDC) with FeCl3 at room temperature. The Raman intensity ratio of the G band to the D band (I-G/I-D ratio) of CNT fiber increased from 2.3 to 4.6 after ICDC reaction. From the)(PS measurements, the A(C=C)/A(C-C) ratio of the CNT fiber increased from 3.6 to 4.8. It is of keen interest that both the electrical conductivity and tensile strength of CNT yarn improved to 3.5 x 10(3) S/cm and 420 MPa, which is 180 and 200% higher than that of neat CNT yarn.
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Related Researcher
- JEONG, YOUNG JIN
- College of Engineering (Department of Materials Science and Engineering)