Gas sensing improvement of carbon nanotubes by NH4OH-flash treatment: a nondestructive purification technique

Hsin-Fu Kuo, Der-Hsien Lien, Wen-Kuang Hsu*, Nyan-Hwa Tai, Shih-Chin Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Surface carbonaceous impurities are removed from carbon nanotubes by NH4OH-flash treatment and microscope analyses reveal that the carbon walls retain integrity and the tube resistance is reduced by 17% of the initial value. Clean tubes exhibit a significant improvement on gas sensitivity and O-2 adsorption-desorption becomes reversible.

Original languageEnglish
Pages (from-to)3581-3584
Number of pages4
JournalJournal of Materials Chemistry
Volume17
Issue number34
DOIs
StatePublished - Aug 2007

Keywords

  • DECOMPOSITION
  • BUNDLES

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