The effects of liquid-phase oxidation of multiwall carbon nanotubes on their surface characteristics

I. N. Burmistrov, D. S. Muratov, I. A. Ilinykh, E. A. Kolesnikov, Anna Yurievna Godymchuk, D. V. Kuznetsov

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Abstract

The development of new sorbents based on nanostructured carbon materials recently became a perspective field of research. Main topic of current study is to investigate the effect of different regimes of multiwall carbon nanotubes (MWCNT) surface modification process on their structural characteristics. MWCNT samples were treated with nitric acid at high temperature. Structural properties were studied using low temperature nitrogen adsorption and acid-base back titration methods. The study showed that diluted nitric acid does not affect MWCNT structure. Concentrated nitric acid treatment leads to formation of 2.8 carboxylic groups per 1 nm2 of the sample surface.

Original languageEnglish
Article number012004
JournalIOP Conference Series: Materials Science and Engineering
Volume112
Issue number1
DOIs
Publication statusPublished - 18 Feb 2016

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ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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