Article ID Journal Published Year Pages File Type
1428269 Materials Science and Engineering: C 2014 7 Pages PDF
Abstract

•Graphene oxide/poly(o-phenylenediamine) composites were prepared efficiently.•POPD microfibrils were distributed relatively uniformly with GO sheets.•The composite exhibited good catalytic activity and stability for H2O2 sensing.

Conducting poly(o-phenylenediamine) (POPD)/graphene oxide (GO) composites were prepared using a facile and efficient method involving the in-situ polymerization of OPD in the presence of GO in an aqueous medium. Copper sulfate was used as an oxidative initiator for the polymerization of OPD. Scanning electron microscopy and transmission electron microscopy images showed that POPD microfibrils were formed and distributed relatively uniformly with GO sheets in the obtained composites. X-ray diffraction results revealed the highly crystal structure of POPD. This composite exhibited good catalytic activity and stability. These results highlight the potential applications of POPD/GO composites as excellent electrochemical sensors. The composites were used to modify glass carbon electrodes for the chemical detection of hydrogen peroxide in aqueous media.

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Physical Sciences and Engineering Materials Science Biomaterials
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