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This study reports a simple one-step hydrothermal method for the preparation of a Ni(OH) 2 and MnO 2 intercalated rGO nanostructure as a potential supercapacitor electrode material. Having highly amorphous rGO layers with turbostratic and integrated wrinkled flower-like morphology, the as-prepared electrode material showed a high specific capacitance of 420 F g -1 and an energy density of 14.58 Wh kg -1 with 0.5 M Na 2 SO 4 as the electrolyte in a symmetric two-electrode. With the successful intercalation of the γ-MnO 2 and α-Ni(OH) 2 in between the surface of the as-prepared rGO layers, the interlayer distance of the rGO nanosheets expanded to 0.87 nm. The synergistic effect of γ-MnO 2 , α-Ni(OH) 2 , and rGO exhibited the satisfying high cyclic stability with a capacitance retention of 82% even after 10 000 cycles. Thus, the as-prepared Ni(OH) 2 and MnO 2 intercalated rGO ternary hybrid is expected to contribute to the fabrication of a real-time high-performing supercapacitor device.

Wrinkled Flower-Like rGO intercalated with Ni(OH)2 and MnO2 as High-Performing Supercapacitor Electrode

Wrinkled Flower-Like rGO intercalated with Ni(OH)₂ and MnO₂ as High-Performing Supercapacitor Electrode