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

Authors

ÇAĞRI CEYLAN KOÇAK
ZEKERYA DURSUN

Abstract

Enhanced electrocatalytic reduction of oxygen is achieved using Pt nanoparticle-modified copper phthalocya- nine-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.

DOI

10.3906/kim-1704-27

Keywords

Oxygen reduction, platinum nanoparticles, carbon nanotube, phthalocyanine

First Page

623

Last Page

638

Recommended Citation

KOÇAK, ÇAĞRI CEYLAN and DURSUN, ZEKERYA (2018) "Enhanced electrocatalytic activity of copper phthalocyanine/multiwalled carbon nanotube composite electrode via Pt nanoparticle modification for oxygen reduction," Turkish Journal of Chemistry: Vol. 42: No. 3, Article 3. https://doi.org/10.3906/kim-1704-27
Available at: https://journals.tubitak.gov.tr/chem/vol42/iss3/3