Transparent, conductive, and printable composites consisting of TEMPO-oxidized nanocellulose and carbon nanotube

Hirotaka Koga, Tsuguyuki Saito, Takuya Kitaoka, Masaya Nogi, Katsuaki Suganuma, Akira Isogai

Research output: Contribution to journalArticlepeer-review

189 Citations (Scopus)

Abstract

Ultrastrong, transparent, conductive and printable nanocomposites were successfully prepared by mixing single-walled carbon nanotubes (CNTs) with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (TOCNs) with abundant sodium carboxyl groups on the crystalline nanocellulose surfaces. The surface-anionic cellulose nanofibrils had reinforcing and nanodispersing effects on the CNTs both in water used as the dispersed medium and in the dried composite film, providing highly conductive and printable nanocomposites with a small amount of CNTs. TOCNs are therefore expected as an effective flexible matrix that can be used as an alternative to conventional polymers for various electrical materials, when nanocomposited with CNTs and also graphene. Our findings provide a promising route to realize green and flexible electronics.

Original languageEnglish
Pages (from-to)1160-1165
Number of pages6
JournalBiomacromolecules
Volume14
Issue number4
DOIs
Publication statusPublished - Apr 8 2013

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomaterials
  • Polymers and Plastics
  • Materials Chemistry

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