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- W2970502783 abstract "Abstract Water splitting is one of the most viable methods for obtaining green energy. However, due to the high energy consumption and low conversion efficiency of water splitting, it remains a challenge to design an oxygen-efficient and stable catalyst. In this work, NiOx nanoflakes were prepared by electrochemical co-deposition and dealloying, and Co3O4 films were deposited on the NiOx nanoflakes by atomic layer deposition (ALD). After annealing, it was found by HRTEM that NiCo2O4 formed between the NiOx nanoflakes and Co3O4 layers. These nanoflakes had a low overpotential of 315 mV at a current density of 10 mA/cm2 in a 1 M NaOH solution. Furthermore, the sandwich-like nanostructure also provided good oxygen evolution stability and a large carrier concentration. Due to the Co+2/Co+3 and Ni+2/Ni+3 electron pairs of NiCo2O4 combined with NiOx and Co3O4, the charge transferred easily and the activity increased. Thus, an efficient and simple OER catalyst was developed, which can contribute to the production of green energy." @default.
- W2970502783 created "2019-09-05" @default.
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- W2970502783 date "2019-11-01" @default.
- W2970502783 modified "2023-10-16" @default.
- W2970502783 title "Sandwich-like NiOx/NiCo2O4/Co3O4 nanoflakes enable efficient oxygen evolution electrocatalysis" @default.
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- W2970502783 doi "https://doi.org/10.1016/j.electacta.2019.134753" @default.
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