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A high performance electrode material for supercapacitors is achieved by incorporating 20–30 nm Ni(OH)2 nanoflakes into a highly porous CNT/rGO hybrid framework. The Ni(OH)2/CNT/rGO nanocomposite delivers a high specific capacitance of 633 F g−1 at 1 A g−1 based on the total mass of the composite, implying favorable charge transfer reactions. Even at 10 A g−1, 65% of the capacitance can be retained,...
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