[en] 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 (R_ct) was found to be 10 Ω indicates the better electron transfer from one phase to another. (author)