Enhancement of the mechanical and thermal transport properties of carbon nanotube yarns by boundary structure modulation

Ryo Shikata; Hiroo Suzuki; Yuta Hayashi; Taisuke Hasegawa; Yuho Shigeeda; Hirotaka Inoue; Wataru Yajima; Jun Kametaka; Mitsuaki Maetani; Yuichiro Tanaka; Takeshi Nishikawa; Satoshi Maeda; Yasuhiko Hayashi; Masaki Hada

doi:10.1088/1361-6528/ac57d5

Enhancement of the mechanical and thermal transport properties of carbon nanotube yarns by boundary structure modulation

Ryo Shikata, Hiroo Suzuki, Yuta Hayashi, Taisuke Hasegawa, Yuho Shigeeda, Hirotaka Inoue, Wataru Yajima, Jun Kametaka, Mitsuaki Maetani, Yuichiro Tanaka, Takeshi Nishikawa, Satoshi Maeda, Yasuhiko Hayashi, Masaki Hada

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Carbon nanotubes (CNTs) exhibit extremely high nanoscopic thermal/electrical transport and mechanical properties. However, the macroscopic properties of assembled CNTs are significantly lower than those of CNTs because of the boundary structure between the CNTs. Therefore, it is crucial to understand the relationship between the nanoscopic boundary structure in CNTs and the macroscopic properties of the assembled CNTs. Previous studies have shown that the nanoscopic phonon transport and macroscopic thermal transport in CNTs are improved by Joule annealing because of the improved boundary Van-der-Waals interactions between CNTs via the graphitization of amorphous carbon. In this study, we investigate the mechanical strength and thermal/electrical transport properties of CNT yarns with and without Joule annealing at various temperatures, analyzing the phenomena occurring at the boundaries of CNTs. The obtained experimental and theoretical results connect the nanoscopic boundary interaction of CNTs in CNT yarns and the macroscopic mechanical and transport properties of CNT yarns.

Original language	English
Article number	235707
Journal	Nanotechnology
Volume	33
Issue number	23
DOIs	https://doi.org/10.1088/1361-6528/ac57d5
Publication status	Published - Jun 4 2022

Keywords

carbon nanotube
carbon nanotube yarn
mechanical strength
nanoscopic structures
transport properties

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/1361-6528/ac57d5

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Shikata, R., Suzuki, H., Hayashi, Y., Hasegawa, T., Shigeeda, Y., Inoue, H., Yajima, W., Kametaka, J., Maetani, M., Tanaka, Y., Nishikawa, T., Maeda, S., Hayashi, Y., & Hada, M. (2022). Enhancement of the mechanical and thermal transport properties of carbon nanotube yarns by boundary structure modulation. Nanotechnology, 33(23), [235707]. https://doi.org/10.1088/1361-6528/ac57d5

Shikata, R, Suzuki, H, Hayashi, Y, Hasegawa, T, Shigeeda, Y, Inoue, H, Yajima, W, Kametaka, J, Maetani, M, Tanaka, Y, Nishikawa, T, Maeda, S, Hayashi, Y & Hada, M 2022, 'Enhancement of the mechanical and thermal transport properties of carbon nanotube yarns by boundary structure modulation', Nanotechnology, vol. 33, no. 23, 235707. https://doi.org/10.1088/1361-6528/ac57d5

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title = "Enhancement of the mechanical and thermal transport properties of carbon nanotube yarns by boundary structure modulation",

abstract = "Carbon nanotubes (CNTs) exhibit extremely high nanoscopic thermal/electrical transport and mechanical properties. However, the macroscopic properties of assembled CNTs are significantly lower than those of CNTs because of the boundary structure between the CNTs. Therefore, it is crucial to understand the relationship between the nanoscopic boundary structure in CNTs and the macroscopic properties of the assembled CNTs. Previous studies have shown that the nanoscopic phonon transport and macroscopic thermal transport in CNTs are improved by Joule annealing because of the improved boundary Van-der-Waals interactions between CNTs via the graphitization of amorphous carbon. In this study, we investigate the mechanical strength and thermal/electrical transport properties of CNT yarns with and without Joule annealing at various temperatures, analyzing the phenomena occurring at the boundaries of CNTs. The obtained experimental and theoretical results connect the nanoscopic boundary interaction of CNTs in CNT yarns and the macroscopic mechanical and transport properties of CNT yarns. ",

keywords = "carbon nanotube, carbon nanotube yarn, mechanical strength, nanoscopic structures, transport properties",

author = "Ryo Shikata and Hiroo Suzuki and Yuta Hayashi and Taisuke Hasegawa and Yuho Shigeeda and Hirotaka Inoue and Wataru Yajima and Jun Kametaka and Mitsuaki Maetani and Yuichiro Tanaka and Takeshi Nishikawa and Satoshi Maeda and Yasuhiko Hayashi and Masaki Hada",

note = "Funding Information: This work was supported by JSPS KAKENHI (grant numbers: JP18H05208, JP20H04657, and JP20H01832), JSPS WPI-ICReDD, JST ERATO (grant number: JPMJER1903), and the Leading Initiative for Excellent Young Researchers, of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. Some calculations were carried out on the Numerical Materials Simulator at NIMS. Publisher Copyright: {\textcopyright} 2022 IOP Publishing Ltd.",

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AU - Shikata, Ryo

AU - Suzuki, Hiroo

AU - Hayashi, Yuta

AU - Hasegawa, Taisuke

AU - Shigeeda, Yuho

AU - Inoue, Hirotaka

AU - Yajima, Wataru

AU - Kametaka, Jun

AU - Maetani, Mitsuaki

AU - Tanaka, Yuichiro

AU - Nishikawa, Takeshi

AU - Maeda, Satoshi

AU - Hayashi, Yasuhiko

AU - Hada, Masaki

N1 - Funding Information: This work was supported by JSPS KAKENHI (grant numbers: JP18H05208, JP20H04657, and JP20H01832), JSPS WPI-ICReDD, JST ERATO (grant number: JPMJER1903), and the Leading Initiative for Excellent Young Researchers, of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. Some calculations were carried out on the Numerical Materials Simulator at NIMS. Publisher Copyright: © 2022 IOP Publishing Ltd.

PY - 2022/6/4

Y1 - 2022/6/4

N2 - Carbon nanotubes (CNTs) exhibit extremely high nanoscopic thermal/electrical transport and mechanical properties. However, the macroscopic properties of assembled CNTs are significantly lower than those of CNTs because of the boundary structure between the CNTs. Therefore, it is crucial to understand the relationship between the nanoscopic boundary structure in CNTs and the macroscopic properties of the assembled CNTs. Previous studies have shown that the nanoscopic phonon transport and macroscopic thermal transport in CNTs are improved by Joule annealing because of the improved boundary Van-der-Waals interactions between CNTs via the graphitization of amorphous carbon. In this study, we investigate the mechanical strength and thermal/electrical transport properties of CNT yarns with and without Joule annealing at various temperatures, analyzing the phenomena occurring at the boundaries of CNTs. The obtained experimental and theoretical results connect the nanoscopic boundary interaction of CNTs in CNT yarns and the macroscopic mechanical and transport properties of CNT yarns.

AB - Carbon nanotubes (CNTs) exhibit extremely high nanoscopic thermal/electrical transport and mechanical properties. However, the macroscopic properties of assembled CNTs are significantly lower than those of CNTs because of the boundary structure between the CNTs. Therefore, it is crucial to understand the relationship between the nanoscopic boundary structure in CNTs and the macroscopic properties of the assembled CNTs. Previous studies have shown that the nanoscopic phonon transport and macroscopic thermal transport in CNTs are improved by Joule annealing because of the improved boundary Van-der-Waals interactions between CNTs via the graphitization of amorphous carbon. In this study, we investigate the mechanical strength and thermal/electrical transport properties of CNT yarns with and without Joule annealing at various temperatures, analyzing the phenomena occurring at the boundaries of CNTs. The obtained experimental and theoretical results connect the nanoscopic boundary interaction of CNTs in CNT yarns and the macroscopic mechanical and transport properties of CNT yarns.

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KW - nanoscopic structures

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Enhancement of the mechanical and thermal transport properties of carbon nanotube yarns by boundary structure modulation

Abstract

Keywords

ASJC Scopus subject areas

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