Resistance-heating of carbon nanotube yarns in different atmospheres

Maik Scholz, Yasuhiko Hayashi, Vyacheslav Khavrus, Daiki Chujo, Hirotaka Inoue, Masaki Hada, Albrecht Leonhardt, Bernd Büchner, Silke Hampel

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Annealing and functionalization of carbon nanotube yarns (CNYs) is a prospective way of increasing the electrical conductivity of this material. We show a novel way, the simultaneous annealing and instant coating of the CNY by its resistance-heating in atmospheres of hydrocarbons. This method is capable to preserve the lightweight properties of CNYs and increase the electrical conductivity. It could be raised by a factor of 2 through carbon deposition onto the yarns and the carbon nanotubes (CNTs) inside the yarn structure. By resistance-heating over a multistep process the conductivity could be even increased by a factor of 2.2. Comparison of annealing under atmosphere of different hydrocarbons and at different temperatures reveals the influence of resistance-heating on the structure of CNY.

Original languageEnglish
Pages (from-to)232-238
Number of pages7
JournalCarbon
Volume133
DOIs
Publication statusPublished - Jul 1 2018

ASJC Scopus subject areas

  • Chemistry(all)

Fingerprint Dive into the research topics of 'Resistance-heating of carbon nanotube yarns in different atmospheres'. Together they form a unique fingerprint.

  • Cite this

    Scholz, M., Hayashi, Y., Khavrus, V., Chujo, D., Inoue, H., Hada, M., Leonhardt, A., Büchner, B., & Hampel, S. (2018). Resistance-heating of carbon nanotube yarns in different atmospheres. Carbon, 133, 232-238. https://doi.org/10.1016/j.carbon.2018.03.022