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- W2899406720 abstract "Rational electrode architectural design, favorable electrode composition, and versatile synthesis approach play a significant role in developing advanced electrodes for high-performance supercapacitor. In this work, we report a facile approach for fabricating 1D hierarchical [email protected]xNi1−x(OH)2 nanowire arrays grown on 3D highly conductive copper foam. The optimized [email protected]0.2Ni0.8(OH)2 electrode delivers an ultrahigh specific capacity of 374.7 mAh g−1 at 2 A g−1 with exceptional rate capability (301.7 mAh g−1 at 50 A g−1) and remarkable cycling stability (95.9% after 10 000 cycles at 50 A g−1). A flexible asymmetric solid-state supercapacitor (ASC) is fabricated using the optimized [email protected]0.2Ni0.8(OH)2 as the positive electrode, activated carbon-coated nickel foam as the negative electrode, and polyvinyl alcohol/KOH gel as electrolyte. The flexible ASC operating with a potential window of 0–1.6 V delivers an energy density of 46.5 Wh kg−1 with a power density of 526.9 W kg−1. The ASC also exhibits excellent cycling stability with a capacity retention of 84.3% after 10 000 cycles at a current density of 7 A g−1." @default.
- W2899406720 created "2018-11-09" @default.
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- W2899406720 date "2019-02-01" @default.
- W2899406720 modified "2023-09-27" @default.
- W2899406720 title "Rational design of integrated CuO@Co Ni (OH)2 nanowire arrays on copper foam for high-rate and long-life supercapacitors" @default.
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- W2899406720 doi "https://doi.org/10.1016/j.electacta.2018.10.183" @default.
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