Development of environmental friendly Mo-doped MnO2 via hydrothermal route for supercapacitor as pollution-free source of energy
Abstract
The increasing use of fossil fuels and resulting environmental concerns have elevated the global issues, leading to a focus on developing alternative sustainable energy sources. However, supercapacitors (SCs) have been considered as possible solutions to address major global energy challenges. These devices are designed to generate and store energy efficiently. In this study, Mn-doped MnO2 material was fabricated utilizing the simple hydrothermal route to increase the electrochemical efficiency of MnO2 by doping strategy. However, the properties of the Mn-doped MnO2 material were analyzed with different analytical tools. The electrochemical result of Mn-doped MnO2 was determined, which revealed higher specific capacitance of 920.86 F g(-1) than MnO2 (512.90 F g(-1)) at 1 A g(-1) with low charge transfer resistance of R-ct = 0.9 Omega. Furthermore, Mn-doped MnO2 exhibited exceptional stability of 50 h with capacitive retention of 97.14% after the 5000th cycle and contains a larger surface area with diverse morphology, which was responsible for the enhanced capacitive performance for use in various fields of energy storage applications.
