Rai, AtmaSharma, A. L.Thakur, Awalendra K.Thakur, A.K.2017-07-272024-08-132017-07-272024-08-132014Rai, A., Sharma, A. L., & Thakur, A. K. (2014). Evaluation of aluminium doped lanthanum ferrite based electrodes for supercapacitor design. Solid State Ionics, 262, 230-233. doi: 10.1016/j.ssi.2013.10.024167273810.1016/j.ssi.2013.10.024http://10.2.3.109/handle/32116/223We report Al doped ferrites La1 - xAlxFeO 3(x = 0, 0.3) as an electrode material for supercapacitor design. The La1 - xAlxFeO3 has been synthesized via chemical route. Structural and microstructural evolution has been carried out by X-ray diffraction (XRD) analysis and field emission scanning electron microscopy (FESEM) respectively. The electrode property of La 1 - xAlxFeO3 has been evaluated by using three electrode systems, glassy carbon (working), Pt (counter) and Ag/AgCl (reference electrode) with H2SO4 as the electrolyte. The Al doped ferrites show better cycle life (~ 250) and columbic efficiency (?) (~ 96%) in comparison to un-doped lanthanum ferrite sample. An increase in specific capacitance (~ 1.5 times) has also been observed in Al doped lanthanum ferrite in comparison to lanthanum ferrite. The maximum specific capacitance for Al doped lanthanum ferrite is ~ 260 F/g as compared to lanthanum ferrite ~ 200 F/g. The improved specific capacitance, columbic efficiency and cycle life of Al doped ferrites may be related to a relative decrease in equivalent series resistance (95 ? for LFO to 55 ? LAFO) and lower M.W. of Al doped lanthanum ferrite. ? 2013 Elsevier B.V.enCyclic voltammetryElectric resistanceElectrochemical electrodesElectrolytic capacitorsFerritesField emission microscopesIron oxidesCycleCycle livesEISEquivalent series resistanceField emission scanning electron microscopyReference electrodesSuper capacitorThree electrode-systemAluminumArticlehttps://www.sciencedirect.com/science/article/abs/pii/S016727381300516X