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Synthesis and Morphology Control of Carbon Nanotube/Polyaniline Composite for Chemical Sensing

Published online by Cambridge University Press:  11 January 2012

Mengning Ding  and
Alexander Star
Mengning Ding
Affiliation:
U.S. Department of Energy, National Energy Technology Laboratory, Pittsburgh, PA 15236, U.S.A. Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, U.S.A.
Alexander Star
Affiliation:
U.S. Department of Energy, National Energy Technology Laboratory, Pittsburgh, PA 15236, U.S.A. Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, U.S.A.
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Abstract

Composites of single-walled carbon nanotubes (SWNTs) and polyaniline (PAni) were synthesized using different approaches. SWNT/PAni nanocomposite with controlled core/shell morphology was achieved. Our chemical sensing tests showed that such core/shell morphology resulted in superior sensor performance, with an increased sensitivity to acetone vapors, and a reversible detection of hydrazine vapors. The reversible detection of parts-per-billion concentrations of hydrazine offers promise for a portable solid-state detector that has potential application in aerospace.

Keywords

core/shellcompositesensor
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1408: Symposium BB – Functional Nanowires and Nanotubes , 2012 , mrsf11-1408-bb05-17
Copyright
Copyright © Materials Research Society 2012

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References

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