Cyclic voltammetry and electrochemical impedance spectroscopy analysis of Cr3+ doped Mg2SiO4 nanoparticles

Abstract

Low temperature solution combustion synthesized Cr3+(1- 4 mol%) doped Mg2SiO4 nanoparticles were analyzed by Powder X-ray Diffraction (PXRD), Fourier Transform Infra-Red (FTIR) spectroscopy, Cyclic voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) techniques. PXRD profile shows the samples are crystalline.FTIR spectra show MgO6 octahedral and Si-O bending and stretching modes.It was observed that, CV show excellent semi rectangular shaped voltammograms due to the oxidation reduction reactions and the reversibility of the reaction which suits for electric double layer capacitance.Charge transfer resistance (Rct) was found to be 10 Ωindicates the better electron transfer from one phase to another.