Surface-confined electropolymerization of pyronin Y in the graphene composite paper structure for the amperometric determination of dopamine

DAĞCI KIRANŞAN K., TOPÇU E., ALANYALIOĞLU M.

Journal of Applied Polymer Science, vol.134, no.30, 2017 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 134 Issue: 30
  • Publication Date: 2017
  • Doi Number: 10.1002/app.45139
  • Journal Name: Journal of Applied Polymer Science
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: catalysts, dyes/pigments, electrochemistry, sensors and actuators, surfaces and interfaces
  • Bilecik Şeyh Edebali University Affiliated: No

Abstract

Surface-confined electropolymerization allowed us to easily prepare homogeneous polymer composite paper structures. The fabrication of freestanding graphene (Gr)-based composite electrodes is very important for many modular approaches in electrochemical applications, such as fuel cells, supercapacitors, and sensors. A Gr composite paper electrode doped with polymeric films of pyronin Y was fabricated by two repetitive simple applications: vacuum filtration and surface-confined electropolymerization. The characterization of this composite paper was done with scanning tunneling microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, powder X-ray diffraction spectroscopy, Raman spectroscopy, UV–visible absorption spectroscopy, four-point probe conductivity measurement, cyclic voltammetry, and electrochemical impedance spectroscopy. The freestanding composite paper demonstrated good electrocatalytic activity for the electrooxidation of dopamine; this indicated that this composite paper could be used for the amperometric quantification of dopamine in real samples. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45139.