S.Sankar, P.Abinaya, S.R.Srither and V. Rajendran
Centre for Nano Science and Technology, K. S. Rangasamy College of Technology, Tiruchengode 637215, Tamil Nadu, India.
Iron titanium oxide (FeTiO3) nanoparticles were synthesised using co-precipitation method. The resulting product was further heated to 353 K (sample A) and 573 K (sample B). The samples were characterised through studies like XRD, FTIR, XRF and SEM / EDAX. Electrochemical measurements of samples A and B were carried out by cyclic voltammograms and electrochemical impedance spectroscopy in 0.1 M Na2SO4 electrolyte. Cyclic voltammetry graphs were obtained for both samples A and B in a new potential window between 0-0.5 V (vs.SCE) with a scan rate of 0.01, 0.025, 0.05 and 0.1 VS-1. The observed results reveal that sample B shows good capacitance value (42 Fg-1) than sample A (23 Fg-1). Moreover, the specific capacitance value of sample B is 40 % higher than iron oxide particles. Therefore, the iron titanium oxide nanoparticles have a good specific capacitance value and it can applicable for all high power energy storage application.