Carbon nanotube/polyaniline composite nanofibers: Facile synthesis and chemosensors

Yaozu Liao, Chen Zhang, Ya Zhang, Veronica Strong, Jianshi Tang, Xin Gui Li, Kourosh Kalantar-Zadeh, Eric M.V. Hoek, Kang L. Wang, Richard B. Kaner

Research output: Contribution to journalArticlepeer-review

Abstract

An initiator is applied to synthesize single-walled carbon nanotube/polyaniline composite nanofibers for use as high-performance chemosensors. The composite nanofibers possess widely tunable conductivities (10-4 to 102 S/cm) with up to 5.0 wt % single-walled carbon nanotube (SWCNT) loadings. Chemosensors fabricated from the composite nanofibers synthesized with a 1.0 wt % SWCNT loading respond much more rapidly to low concentrations (100 ppb) of HCl and NH3 vapors compared to polyaniline nanofibers alone (120 s vs 1000 s). These nanofibrillar SWCNT/polyaniline composite nanostructures are promising materials for use as low-cost disposable sensors and as electrodes due to their widely tunable conductivities.

Original languageEnglish
Pages (from-to)954-959
Number of pages6
JournalNano letters
Volume11
Issue number3
DOIs
Publication statusPublished - 2011 Mar 9

All Science Journal Classification (ASJC) codes

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

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