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- W4313403296 abstract "Cu2O is a narrow band gap material serving as an important candidate for photoelectrochemical hydrogen evolution reaction. However, the main challenge that hinders its practical exploitation is its poor photostability, due to its oxidation into CuO by photoexcited holes. Here, we thoroughly minimize the photo-oxidation of Cu2O nanowires by growing a thin layer of the TiO2 protective layer and an amorphous layer of the VOx cocatalyst using magnetron sputtering and atomic layer deposition, respectively. After optimization of the protective and the cocatalyst layers, the photoelectrode exhibits a current density of −2.46 mA/cm2 under simulated sunlight (100 mW/cm2) at 0.3 V versus reversible hydrogen electrode, and its performance is stable for an extended illumination time. The chemical stability and the good performance of the engineered photoelectrode demonstrate the potential of using earth-abundant materials as a light-harvesting device for solar hydrogen production." @default.
- W4313403296 created "2023-01-06" @default.
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- W4313403296 date "2023-01-02" @default.
- W4313403296 modified "2023-10-06" @default.
- W4313403296 title "Engineering Cu<sub>2</sub>O Nanowire Surfaces for Photoelectrochemical Hydrogen Evolution Reaction" @default.
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- W4313403296 doi "https://doi.org/10.1021/acsaem.2c03122" @default.
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