Electrochemical study of novel composite electrodes based on glassy carbon bulk-modified with Pt and MoO2 nanoparticles supported onto multi-walled carbon nanotubes

Main Article Content

Jelena S. Čović
Aleksandra R. Zarubica
Aleksandar Lj. Bojić
Teodora M. Troter
Marjan S. Ranđelović

Abstract

This paper reports the preparation and electrochemical study of new glassy carbon electrode (GCE) bulk-modified with synthesized hybrid mat­erials: Pt and MoO2 nanoparticles deposited on the multi-walled carbon nano­tubes (MWCNTs). The results of electrochemical study of commercial GCE and electrodes modified with Pt–MWCNT and MoO2–MWCNT were obtained by cyclic voltammetry in K4Fe(CN)6 and NaOH solutions. Morpho­logy and structure of the synthesized hybrid materials were analysed using the method of high resolution transmission electron microscopy, indi­ca­t­ing the presence of well dispersed nanoparticles of Pt and MoO2 over MWCNT net­work. The results of the electrochemical study show that the capa­ci­tance of electrode modified with MoO2–MWCNT and Pt–MWCNT is 62–65 times higher than the capacitance of the commercial GCE.

Article Details

How to Cite
[1]
J. S. Čović, A. R. Zarubica, A. L. Bojić, T. M. Troter, and M. S. Ranđelović, “Electrochemical study of novel composite electrodes based on glassy carbon bulk-modified with Pt and MoO2 nanoparticles supported onto multi-walled carbon nanotubes”, J. Serb. Chem. Soc., vol. 85, no. 9, pp. 1185-1196, Sep. 2020.
Section
Electrochemistry

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