Rich-grain-boundary of Ni3Se2 nanowire arrays as multifunctional
Controllable nanoarchitecture arrays of the transition metal selenide, supported on conductive substrates, are promising materials for high-performance electrochemical energy
The Ni 3 Se 2 nanowire array electrode is shown to be a high-performance alkaline water electrolyzer with current density of 10 mA cm −2 at a cell voltage of 1.62 V. The results demonstrate Ni 3 Se 2 as a promising 2D highly active electrode for electrochemical energy storage and conversion applications.
Controllable nanoarchitecture arrays of the transition metal selenide, supported on conductive substrates, are promising materials for high-performance electrochemical energy storage and conversion applications. Herein, Ni3Se2 nanowire arrays with a rich-grain-boundary are rationally grown on a nickel foam (
The device manifests an eximious energy density of 45.5 Wh Kg −1 at 1.600 kW kg −1, with a capacitance preservation of 96.1% over 12,000 cycles. Additionally, the NiSe@Ni 3 Se 2 composite also present a low overpotential of 281 mV at 10 mA cm −2.
2) As for the Ni3 Se 2 nanosheets active materials, apart from good electronic conductivity, they possess typical three-electron reactions during their charging/discharging process. These merits result in higher charge storage capability.
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