Facile fabrication of ZrV2O7 nanostructures as an electrode material for supercapacitors

Energy depletion is an unavoidable reality in the twenty-first century because of the expansion of energy demands and population. In the past few decades extensive research is being focused on fabrication of novel high-performance active electrode materials for green energy storage devices. In the present work, zirconium vanadate (ZrV2O7) prepared by simple chemical route was proved to be the potential electrode material for supercapacitors (SCs). The synthesized material was analysed using different spectral as well as analytical studies. The pseudocapacitance of ZrV2O7 was evaluated by cyclic voltammetry (CV), galvanostatic charge–discharge (GCD) and Electrochemical Impedance in an alkaline medium. ZrV2O7 delivered substantial specific capacitance (Cs) of 679F g−1 at 5 mVs−1 and demonstrated a superior long-term cyclic stability, with Cs retention of 92.5% even after 3000 GCD cycles with 87% of coulombic efficiency. These findings substantiate the suitability of ZrV2O7 as alternate material for energy storage systems.