Carbon Nanotube/Polyaniline Composite Nanofibers: Facile Synthesis and Chemosensors
Nano Letters2011Vol. 11(3), pp. 954–959
Citations Over TimeTop 1% of 2011 papers
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
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 10(2) 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 NH(3) 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.
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