Open AccessSynthesis and characterization of nanosized ZnTiO3doped with reduced graphene oxide (RGO)
Author(s) -
Boris L. Martinov,
A. Staneva,
Todor E. Vlakhov,
Stanislav Slavov,
Dimiter M. Dimitrov,
Yordan G. Marinov,
Georgi B. Hadjichristov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1762/1/012031
Subject(s) - graphene , materials science , dielectric spectroscopy , oxide , scanning electron microscope , nanocomposite , chemical engineering , nanoparticle , sodium borohydride , composite material , nanotechnology , electrochemistry , metallurgy , chemistry , electrode , engineering , biochemistry , catalysis
Composite materials based on nanosized zinc titanate (ZnTiO 3 ) doped with reduced graphene oxide (RGO) were obtained by means of ultrasonically assisted precipitation. In these composites, the concentration of RGO nanopartiles was varied from 1 wt.% to 20 wt.%. The ZnTiO 3 ceramic was produced by sol-gel method. RGO was prepared by a modified Hammers method and subsequent chemical reduction with sodium borohydride. Structural and phase characterization of the fabricated composites was performed by XRD, scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). It was identified that for all of the studied samples of the RGO/ZnTiO 3 series, the two phases are uniformly distributed over the observed areas, which proves the formation of homogeneous nanocomposite materials. The electrical properties of the series of RGO/ZnTiO 3 samples were characterized by complex electrochemical impedance spectroscopy (EIS) in the frequency range from 0.1 Hz to 1 MHz. The results obtained by EIS for the electrical conductance of RGO-doped ZnTiO 3 as a function of the concentration of RGO nanoparticles were correlated with the data from structural studies.