Radial followed by longitudinal unzipping of multiwalled carbon nanotubes

Seungchan Cho, Keiko Kikuchi, Akira Kawasaki

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


A hybrid structure of graphene nanoleaves attached on a carbon nanotube and rectangular graphene nanosheets (GNSs) were fabricated by means of radial followed by longitudinal unzipping of crystalline multiwalled carbon nanotubes (MWCNTs) grown by catalytic chemical vapor deposition, using a chemical method containing sulfuric acid and nitric acid. Consecutive unzipping in the radial direction and then in the longitudinal direction of a nanotube has never been reported. Our simple chemical approach will open the path to fabrication for rectangular GNSs in the hundred nanometers by few hundred nanometers scale and a broad application of MWCNTs to the novel carbon nanostructure.

Original languageEnglish
Pages (from-to)3865-3872
Number of pages8
Issue number12
Publication statusPublished - 2011 Oct

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)


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