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Through a simple sol-gel process, chromium doped vanadium pentoxide (V 2-x Cr x O 5-δ , where  x  = 0, 0.05, 0.10, 0.15 and 0.20) nanomaterials were synthesized. The XRD data confirmed the occurrence of orthorhombic crystalline structure. FTIR spectra exhibited the presence of V = O and V-O-V along with carbon di oxide and moisture in the samples.The particle diameter was found to be 146-227nm. The SEM results exhibited a sheet like structure. From the electrochemical studies, it was found that V 1.95 Cr 0.05 O 5-δ  electrode has exhibited a specific capacitance of 232.15 Fg −1  at the scan rate of 10 mVS −1 . It can be an electrode for supercpacitors.

Sol-Gel Derived Chromium Doped Vanadium Pentoxide Based Nanostructured Electrode Materials for Supercapacitor Applications