Abstract
The study investigates the suitability of a 2D metallic selenide material for use in supercapacitors, which are rapidly gaining recognition as a viable energy storage solution. While supercapacitors are highly efficient at charging and discharging, their lower energy density is a limiting factor. This research focuses on identifying new materials that can enhance the energy density of supercapacitors while maintaining their rapid charging capabilities. The study examines CrSe2, a promising chalcogenide material that has recently been suggested for use in hybrid composite systems. The research shows that CrSe2 can be made in bulk quantities and exhibits high stability in certain electrolytes. The electrochemical properties of CrSe2 are measured for the first time and found to be consistent with an electric double-layer capacitance. Additionally, the material demonstrates a high specific capacitance, indicating potential for use in supercapacitive applications. The study concludes that the metallic-type conductivity of CrSe2 could be responsible for its superior performance over high surface area carbon black samples.
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