Liquor ammonia mediated V(v) insertion in thin Co3O4 sheets for improved pseudocapacitors with high energy density and high specific capacitance value

Abstract

Ultrathin 2D Co₃O₄ and Co₃V₂O₈ nanosheets have been produced from our modified hydrothermal technique (MHT). Both the materials have been proved to be extraordinary electrode materials for pseudocapacitors. The neat nanosheets of Co₃O₄ and Co₃V₂O₈ exhibit a record specific capacitance value of 1256 F g⁻¹ and 4194 F g⁻¹ at 1 A g⁻¹ current density, respectively.