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- W4313894423 abstract "Defect-enriched nickel sulfide (D-Ni3S2) nanosheets grown on Ni foam are designed as an efficient bifunctional electrocatalyst for overall water splitting (OWS). The optimal (D2-Ni3S2) catalyst exhibits overpotentials of 52 mV for hydrogen evolution reaction and 210 mV for oxygen evolution reaction at 10 mA cm−2. With regard to the OWS, the assembled two-electrode (D2-Ni3S2//D2-Ni3S2) alkaline electrolyzer requires a low cell voltage of 1.52 V at 10 mA cm−2, with robust stability over 100 h, outperforming the commercial Pt/C-IrO2 couple and is even comparable to the most reported Ni3S2-based heterostructure electrocatalysts. Combined with density functional theory calculations, the rich defects can improve the electric conductivity and tune the chemisorption of H+ and OH−, thus remarkably enhancing the OWS activity. This work offers a promising avenue to design efficient bifunctional catalysts toward OWS by defect engineering." @default.
- W4313894423 created "2023-01-10" @default.
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- W4313894423 date "2023-01-09" @default.
- W4313894423 modified "2023-09-30" @default.
- W4313894423 title "Modulating the electronic structure of nickel sulfide via defect engineering for efficient bifunctional overall water splitting" @default.
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- W4313894423 doi "https://doi.org/10.1063/5.0130485" @default.
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