Current progress in vanadium oxide nanostructures and its composites as supercapacitor electrodes

TL;DR

This review discusses recent advances in vanadium oxide nanostructures and composites, highlighting their electrochemical properties, methods to enhance supercapacitor performance, and the challenges faced in practical applications.

Contribution

It provides a comprehensive overview of the electrochemical behavior, morphology engineering, doping, and composite formation strategies for vanadium oxides in supercapacitors.

Findings

Enhanced supercapacitive performance through morphology engineering and doping.

Challenges include limited electrical conductivity and structural stability.

Potential of vanadium oxide nanocomposites for energy storage applications.

Abstract

In recent years, vanadium oxides have gained immense attention in the field of energy storage devices due to their low-cost, layered structure and multi-valency despite their limited electrical conductivity and lower structural stability. In this brief review, we have tried to focus on electrochemical properties of the stoichiometric vanadium oxides along with VO_x composites. The morphology engineering, doping with heteroatom and formation of composites with carbon-based materials and/or conducting polymers in enhancing the supercapacitive performances of the vanadium oxides are discussed in details. Finally, the potentiality and challenges of vanadium oxides nanocomposites for supercapacitor applications are discussed.