An approach to develop high performance supercapacitor using Bi2O3 based binary and ternary nanocomposites

Designing supercapacitor devices using different active materials is an effective approach for the emergent development of materials in the energy storage applications at the current scenario. Herein, a series of materials, Bi2O3, Ag/Bi2O3, g-C3N4 and Ag/Bi2O3/g-C3N4 have been synthesized and characterized for the examination of supercapacitor applications. The supercapacitance performances of the nanomaterials were in the order of Bi2O3 < g-C3N4 < Ag/Bi2O3/g-C3N4 < Ag/Bi2O3 and higher supercapacitance was observed for Ag/Bi2O3 nanocomposite (303 F g–1) may be due to the effective play of silver doping in Bi2O3. Hence it is important to optimize the rational designing of these kinds of binary/ternary nanocomposites for the further development in the supercapacitor applications.