Facile Co-Precipitation Synthesis And Multifunctional Properties Of Ni-Doped Znfe₂O₄ Nanoparticles

Abstract

In this work, Ni-doped ZnFe₂O₄ nanoparticles were prepared by low-cost co-precipitation method. The effects of Ni doping on the phase composition, microstructure, thermal, and electro-chemical properties of ZnFe₂O₄ were investigated.X-ray diffraction patterns confirm single-phase cubic spinel structures with crystallite size in the range around34 nm. Particle sizes obtained from transmission electron micrographs were also in good agreement with the crystallite sizes obtained from the XRD data. FTIR result reveals that the synthesized Ni doped ZnFe₂O₄ nanoparticles were of phase pure with cubic structure. EDX image confirm the presence of Ni, Fe, Zn and O in the Ni doped ZnFe₂O₄ nanoparticles. Thermo gravimetric and differential thermal analysis (TG/DTA) method was used to confirm the formation of Ni doped ZnFe₂O₄ nanoparticles. From the CV analysis, higher capacitance value observed for the scanning rate 2 mV/s. The electrochemical results show that Ni doped ZnFe₂O₄ nanoparticles may function well as supercapacitor electrodes. For the sake of designing and optimizing supercapacitors to satisfy future energy needs, this work adds to our knowledge of their electrochemical characteristics and energy storage capacity.