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

Authors

ÇAĞRI CEYLAN KOÇAK
ZEKERYA DURSUN

DOI

10.3906/kim-1704-27

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.

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