Facile synthesis of chromium oxide composite carbon (Cr2O3/C) nanostructures by solvothermal route for high performance supercapacitor applications

In today's generation, electrical energy use is increased day to day, that leads to energy storage devices fabrication to store electrical energy. We make use of transition metals which play an essential role in supercapacitor applications due to their capacitive performance and environmentally eco-friendly. Ni, Co, Cr, V, Fe, etc., shows better capacitive performance. Transition metal -oxide based electrode plays an important role in enhancing capacitance in supercapacitor application. Cr2O3/C nano oxide material was prepared by solvothermal method. Chromium oxide and its carbon composite comparative study were analyzed. The composite metal oxide exhibited high capacitance compared to chromium oxide. The electrochemical action was analyzed and its capacitive behavior is tabulated. Various characterizations have proved the formation of desired material and morphology. Hence, unary metal oxides may be encouraging materials for supercapacitor application.