Carbon nanotube/polyaniline composite nanofibers: facile synthesis and chemosensors.
basic_science · Level V
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- Record sourced from PubMed, PMID 21288040.
- Also identified by DOI 10.1021/nl103322b.
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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.
Medical subject headings
- Aniline Compounds
- Nanofibers
- Nanotubes, Carbon