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- W4210430413 abstract "Designing a synthesis of ultra-small Ni-based nanomaterials with high intrinsic activity and stability in alkaline hydrogen evolution reaction (HER) is a major challenge. Herein, a series of noble metal doped ultra-small size (4 nm) M-Ni/NiO nanoparticles supported on CNT are rationally designed by a solvent-free microwave reduction method that is fast (60 s), simple, includes no surfactants, extensive (>1 g), and has high yield (82.7%). The Ir-Ni/NiO@CNT has superior performance with a low overpotential of 24.6 mV at 10 mA cm-2 . In addition, the turnover frequency (TOF) value up to 2.51 s-1 and the exchange current density reaches 4.34 mA cm-2 , indicating that the catalyst has better intrinsic catalytic activity. It is further proved by density functional theory (DFT) that the NiO surface is conducive to the adsorption of OH* in the Volmer step while the Ni is inclined to adsorb H*, which synergistically promotes the water-splitting reaction, thereby increasing the catalytic rate of HER. It is believed that this work will provide valuable contributions and inspirations toward the large-scale production of high-performance Ni-based electrocatalysts for HER." @default.
- W4210430413 created "2022-02-08" @default.
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- W4210430413 date "2022-02-07" @default.
- W4210430413 modified "2023-10-16" @default.
- W4210430413 title "Systematic Engineering on Ni‐Based Nanocatalysts Effectively Promote Hydrogen Evolution Reaction" @default.
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- W4210430413 doi "https://doi.org/10.1002/smll.202108072" @default.
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