In situ spectroscopic and electrochemical impedance study of gold/poly (anthranilic acid) core/shell nanoparticles


Golshaei R., Guler Z., Unsal C., Sarac A. S.

EUROPEAN POLYMER JOURNAL, cilt.66, ss.502-512, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.eurpolymj.2015.03.009
  • Dergi Adı: EUROPEAN POLYMER JOURNAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.502-512
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The present study reports a facile and simple method to prepare (Gold/Poly Anthranilic acid) (Au/PANA) core/shell nanostructures with uniform size and morphology in an aqueous solution through oxidation of the monomer (3-aminobenzoic acid) and reduction of the Au(III) ions simultaneously. In this work, gold nanoparticles were highly dispersed and stabilized by the oxidation of 3-aminobenzoic acid in order to form a uniform metal-polymer core/shell nanocomposite. Fabricated nanocomposites have been characterized by UV-Visible spectroscopy, attenuated total reflection-Fourier transform infrared (ATR-FTIR) and X-ray diffraction. Morphology of nanocomposites was analyzed by atomic force microscopy (AFM), scanning electron microscopy (SEM). Electroactivity of Au/PANA core/shells were investigated by electrochemical impedance spectroscopy (EIS) and equivalent circuit modeling was performed.