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

Kıranşan K., Topçu E., Alanyalıoğlu M.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.134, sa.30, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 134 Sayı: 30
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1002/app.45139
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: catalysts, dyes/pigments, electrochemistry, sensors and actuators, surfaces and interfaces, ELECTROCHEMICAL DETECTION, OXIDE SHEETS, ELECTRODE, FILMS, NANOPARTICLES, FABRICATION, NITRITE, CELLS, DYE
  • Atatürk Üniversitesi Adresli: Evet

Özet

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. (C) 2017 Wiley Periodicals, Inc.