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• W4308156710 endingPage "140081" @default.
• W4308156710 startingPage "140081" @default.
• W4308156710 abstract "• Cl-BiVO 4 photoanode has been successfully developed by impregnation method. • Cl - modification is helpful to capture holes and prolong electron lifetime. • Ni(OH) 2 and Cl co-modified BiVO 4 can improve the photoelectric performance. • This provides a new strategy for the design of solar water splitting system. BiVO 4 is a promising photoanode material for converting solar energy into hydrogen fuel, but its practical applicability is primarily constrained by severe surface charge recombination and slow water oxidation processes. Here, the modification of BiVO 4 surface by Cl - with appropriate electronegativity greatly promoted the photoelectric water oxidation activity. The Cl-BiVO 4 electrode exhibited a photocurrent of 2.55 mA cm -2 , at 1.23V vs RHE. The research shows that the surface anion polarization of BiVO 4 is helpful for trapping photogenerated holes and prolonging the electron lifetimes. Then, the cocatalyst Ni(OH) 2 is anchored on Cl-BiVO 4 by a simple impregnation method, and a high-performance photoanode Ni(OH) 2 /Cl-BiVO 4 is successfully constructed. The photocurrent density of the composite photoanode is 4.33 mA cm -2 (1.23 V vs RHE), which is approximately 3.0 times that of pure BiVO 4 (1.44 mA cm -2 ). Moreover, the initial potential is negatively shifted, and the ABPE, IPCE and charge separation efficiency are also significantly improved. This research presents a simple and effective strategy for producing low-cost, high-performance solar water decomposition catalysts." @default.
• W4308156710 created "2022-11-08" @default.
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• W4308156710 date "2023-02-01" @default.
• W4308156710 modified "2023-10-16" @default.
• W4308156710 title "Electronegative Cl− modified BiVO4 photoanode synergized with nickel hydroxide cocatalyst for high-performance photoelectrochemical water splitting" @default.
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• W4308156710 doi "https://doi.org/10.1016/j.cej.2022.140081" @default.
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