Influence of nitric acid treatment of carbon nanotubes on their physico-chemical properties

Martin Pumera, Břetislav Šmíd, Kateřina Veltruská

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

We report a systematic evaluation of the influence of the use of nitric acid at elevated temperature (80°C) as purification and functionalization treatment for four different types of multi wall carbon nanotubes (MWCNTs) and for carbon microparticles upon their physico-chemical properties. We used BET, Raman spectroscopy, high resolution X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy measurements for MWCNTs characterization. We found that nitric acid treatment significantly changes physico-chemical properties of MWCNTs and that these changes vary significantly between different MWCNTs. Therefore we urge researchers to be careful when relying on the physico-chemical properties measured on different MWCNTs samples.

Original languageEnglish
Pages (from-to)2671-2676
Number of pages6
JournalJournal of Nanoscience and Nanotechnology
Volume9
Issue number4
DOIs
Publication statusPublished - 2009 Apr

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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