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- W2993375907 abstract "Nickel-phosphorus semimetallic compounds with an open-framework structure have attracted increasing interests as electrode materials for supercapacitor applications. In this work, ultrafine Ni–[email protected] nanotubes (NTs) with a novel three-dimensional network are synthesized by using a one-pot hydrothermal method under different temperatures to form the electrode material for hybrid supercapacitors. The energy storage performances of the Ni–[email protected] NTs electrodes are systematically investigated, and the results demonstrate that the Ni–[email protected] NTs possess a superior specific capacity of 771.8 C g−1 at 1 A g−1 in a three-electrode cell. Remarkably, a specific capacity of 350.2 C g−1 can still be maintained when the current density increases up to 30 A g−1. The energy storage performance of the as-prepared Ni–P nanowires (NWs) and Ni11(HPO3)8(OH)6@Ni nanoparticles (NPs) also are evaluated for comparison. Furthermore, a hybrid supercapacitor (HSC) is assembled with the Ni–[email protected] NTs as the positive electrode and activated carbon (AC) as the negative electrode. The as-assembled HSCs show a high energy density of 58.7 Wh kg−1 at a relatively high-power density of 945 W kg−1, outweighing most of the hybrid supercapacitors reported in the literature. Furthermore, such a hybrid supercapacitor displays an excellent cycling stability (91.2% after 6000 cycles at 5 A g−1) under a voltage of 1.6 V." @default.
- W2993375907 created "2019-12-13" @default.
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- W2993375907 date "2020-01-01" @default.
- W2993375907 modified "2023-10-14" @default.
- W2993375907 title "Enhanced energy storage performance of advanced hybrid supercapacitors derived from ultrafine Ni–P@Ni nanotubes with novel three-dimensional porous network synthesized via reaction temperatures regulation" @default.
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- W2993375907 doi "https://doi.org/10.1016/j.electacta.2019.135440" @default.
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