Graphene oxide/conducting polymer composite hydrogels
- 25 October 2011
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 21 (46), 18653-18658
- https://doi.org/10.1039/c1jm13918e
Abstract
Graphene oxide/conducting polymer (GO/CP) composite hydrogels were prepared by in situ chemical polymerization of corresponding aromatic monomers in aqueous dispersions of GO sheets. GO/polypyrrole (PPy), GO/poly(3,4-ethylenedioxythiophene) (PEDOT) and GO/polyaniline (PANi) hydrogels were obtained by this technique, and the mechanism of gelation was discussed. Among them, GO/PPy composite hydrogels were tested to have low critical hydrogel concentrations (10 kPa) and electrical conductivity, and strong electrochemical activity. A gas sensor based on a typical GO/PPy hydrogel showed high sensitivity towards ammonia gas.Keywords
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