Kim, Young-Kwan Kim, Young-Jin Park, Junbeom Han, Sang Woo Kim, Seung Min 2024-01-19T15:05:05Z 2024-01-19T15:05:05Z 2021-10-21 2021-03 0008-6223 https://pubs.kist.re.kr/handle/201004/117309 In this study, we investigate the effects of the purification of carbon nanotube (CNT) fibers on their mechanical and electrical properties and, more importantly on the efficiencies of various surface modifications. Even though the purification dominantly works on the surface of CNT fibers, the specific tensile strength and electrical conductivity of CNT fibers are enhanced from 0.50 N tex(-1) and 932 S cm(-1) to 0.91 N tex(-1) and 5158 S cm(-1) by the restoration of their defect structures and improvement of their alignment and density. Furthermore, the efficiencies of their surface modifications through both covalent and non-covalent approaches are greatly improved. Au nanoparticles are far more densely grown on the purified CNT fibers than as spun CNT fibers. The resulting Au/CNT nanocomposite fibers exhibit improved mechanical and physical properties, and possibility to be applied as a fibrous catalyst. (C) 2020 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD SPUN CNT FIBERS COMPOSITE FIBERS CROSS-LINKING EFFICIENT STRENGTH FILMS Purification effect of carbon nanotube fibers on their surface modification to develop a high-performance and multifunctional nanocomposite fiber Article 10.1016/j.carbon.2020.11.026 1 CARBON, v.173, pp.376 - 383 CARBON 173 376 383 scie scopus 000613137600010 2-s2.0-85096172425 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article SPUN CNT FIBERS COMPOSITE FIBERS CROSS-LINKING EFFICIENT STRENGTH FILMS Carbon nanotube Catalyst Purification Surface functionalization Nanocomposite