: The demand of clean energy storage requirement increases tremendously hence in that supercapacitors plays significant role. The chemical combustion method was employed to synthesize mixed Ni 1-x Zn x Fe 2 O 4 where (x= 0.4, 0.6) with various compositions for supercapacitor application. This approach involved combining aqueous solution of nickel-zinc nitrate, and ferric nitrate as oxidizers, along with citric acid as a reducing agent. This mixture underwent a redox reaction, resulting in a uniform mixture. Upon calcinations at 500 o C for 5 hours, nano-crystallite Ni-Zn ferrite was obtained. The X-RD analysis validates the presence structure of cubic spinel-type with Fd3m space group, and the crystalline average size is 42.23 and 36.23nm. The confirmation of cubic structure was reinforced by Raman spectra. Furthermore to examine the surface characteristics of the synthesized materials and element stoichiometry, scanning electron microscope and also EDS was employed. UV-Visible analysis offers valuable insight into structural variations and corresponding changes in the optical band gap induced by the incorporation of zinc ions. In electrochemical analysis specific capacitances are 233.3F/g from lower current density 0.25A/g.
Adsure et al. (Mon,) studied this question.