Abstract
AbstractAn ongoing field of study involves improving the performance and stability of benchmarked metal catalysts employing nanostructured non‐metallic materials, which is both fascinating from a fundamental and an application standpoint. By rapidly thermally exfoliating CrCl3 6H2O precursors, amorphous few‐layered nanosheets of Cr2O3 (3‐5 nm) are synthesized. The exfoliated Cr2O3 was characterized using structural and electrochemical techniques. Cyclic Voltammetry (CV) revealed that the material delivers a specific capacitance of 1100 F/g at 10 mV/s, which is among the best‐reported values for this material. This sample has a modest surface area of 155 m2/g with a mesoporous structure. Electrochemical impedance spectra (EIS) for amorphous Cr2O3 revealed lower series resistance (Rs) and charge transfer resistance (Rct) of 0.6 Ω and 0.88 Ω, respectively. Additionally, this material delivers a desirable energy and power density of 20.2 Wh/kg and 125 W/kg, respectively.
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