Synthesis and characterization of Cu super(2+) doped NiO electrode for supercapacitor application

Abstract Nanocrystals of Ni sub(1-x)Cu sub(x)O have been synthesized by a simple chemical precipitation method. X-ray diffraction studies showed that the samples have pure cubic phase and the average size of the nanocrystals is found to be in the range of 6.52-13.4 nm. The morphology of NiO nanocrys...

Full description

Saved in:
Bibliographic Details
Published in:Journal of sol-gel science and technology 2015-06, Vol.74 (3), p.621-630
Main Authors: Sathishkumar, K, Shanmugam, N, Kannadasan, N, Cholan, S, Viruthagiri, G
Format: Article
Language:English
Subjects:
Capacitance
Capacitors
Doping
Magnetic properties
Nanocrystals
Supercapacitors
Synthesis
X-rays
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract Nanocrystals of Ni sub(1-x)Cu sub(x)O have been synthesized by a simple chemical precipitation method. X-ray diffraction studies showed that the samples have pure cubic phase and the average size of the nanocrystals is found to be in the range of 6.52-13.4 nm. The morphology of NiO nanocrystals analyzed by SEM showed a considerable change from nanoparticles to nanorods on doping and confirmed by FE-TEM analysis. The energy dispersive X-ray analysis results showed that the compositions of the elements are relevant as expected from the synthesis. The optical properties of the nanostructures were also investigated by Photoluminescence spectra. The magnetic properties were investigated at room temperature using the vibrating sample magnetometer and the hysteresis loops confirmed the ferromagnetic behavior of NiO on doping due to smaller size effect. The specific capacitance behavior studied by cyclic voltammetry measurements showed higher specific capacitance on lower concentration of doping which made it as promising electrode material for supercapacitor application. Graphical Abstract
ISSN:0928-0707
1573-4846
DOI:10.1007/s10971-015-3641-4