Enhanced electrocatalytic activity of copper phthalocyanine/multiwalled carbon nanotube composite electrode via Pt nanoparticle modification for oxygen reduction

KOÇAK Ç. C., DURSUN Z.

TURKISH JOURNAL OF CHEMISTRY, vol.42, no.3, pp.623-638, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 3
  • Publication Date: 2018
  • Doi Number: 10.3906/kim-1704-27
  • Journal Name: TURKISH JOURNAL OF CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.623-638
  • Keywords: Oxygen reduction, platinum nanoparticles, carbon nanotube, phthalocyanine, PLATINUM NANOPARTICLES, FUEL-CELL, IRON PHTHALOCYANINE, CATALYTIC-ACTIVITY, ALKALINE-SOLUTION, CATHODE CATALYST, COBALT PHTHALOCYANINE, METHANOL OXIDATION, GOLD NANOPARTICLES, IRIDIUM OXIDE
  • Dokuz Eylül University Affiliated: Yes

Abstract

Enhanced electrocatalytic reduction of oxygen is achieved using Pt nanoparticle-modified copper phthalocyanine-multiwalled carbon nanotube (PtNPs/CuPc-CNT) composite film on a glassy carbon electrode (PtNPs/CuPc-CNT/GCE). The PtNPs/CuPc-CNT/GCE surface is characterized by scanning electron microscopy, transmission electron microscopy, electrochemical impedance spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. The electrocatalytic activity of composite electrodes in the oxygen reduction reaction is investigated by cyclic voltammetry and rotating-disk electrode measurements. PtNPs/CuPc-CNT/GCE show higher catalytic activity than CNT/GCE, CuPc/GCE, and CuPc-CNT/GCE in oxygen reduction with four electron transfers.