Oxidation of N-doped multiwalled carbon nanotubes and formation of discontinuous spiraled carbon nanoribbons

Aman Preet Kaur, Mark S. Meier, Rodney Andrews, Dali Qian

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The effects of five commonly used wet chemical oxidations were studied for the extent of oxidation of graphitized nitrogen-doped multiwalled carbon nanotubes (N-MWCNTs). KMnO4/ H2SO4 was the most potent oxidant, as it produced the highest fraction of oxygen-containing functional groups. Electron microscopy studies showed that the treatment of annealed N-MWCNTs (G-N-MWCNTs) with H2SO4/HNO3 and H2SO4/KMnO4 mixtures leads to interesting spiraled ribbon textures. A structural model, involving the stacking of coiled subunits to form a discontinuous carbon nanoribbon rather than a continuous ribbon is proposed to explain the range of textures that result from oxidation as well as from reduction.{equation presented}.

Original languageEnglish
Pages (from-to)257-275
Number of pages19
JournalArkivoc
Volume2018
Issue number4
DOIs
StatePublished - 2018

Bibliographical note

Publisher Copyright:
© ARKAT USA, Inc.

ASJC Scopus subject areas

  • Organic Chemistry

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