Glassy carbon electrode modified with a graphene oxide/poly(o-phenylenediamine) composite for the chemical detection of hydrogen peroxide

Mater Sci Eng C Mater Biol Appl. 2014 Nov:44:144-50. doi: 10.1016/j.msec.2014.08.028. Epub 2014 Aug 19.

Abstract

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.

Keywords: Chemical sensor; Conducting composite; Graphene oxide; Poly(o-phenylenediamine).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbon / chemistry*
  • Electrodes
  • Glass / chemistry
  • Graphite / chemistry*
  • Hydrogen Peroxide / analysis*
  • Microscopy, Electron, Scanning
  • Microscopy, Electron, Transmission
  • Phenylenediamines / chemistry*
  • Polymerization
  • X-Ray Diffraction

Substances

  • Phenylenediamines
  • poly(o-phenylenediamine)
  • Carbon
  • Graphite
  • Hydrogen Peroxide