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- W2788806270 abstract "Considering its small band gap and appropriate conduction band level, Si is a suitable semiconductor for photocathodes in a photoelectrochemical (PEC) cell. Unfortunately, its PEC activity is far from desirable because of inferior stability, high recombination of photogenerated electron–hole pairs, and sluggish hydrogen evolution kinetics at the Si/electrolyte interface. The introduction of low-cost and earth-abundant non-noble metal cocatalysts onto the Si photocathode is a promising route to improve its PEC performance. Herein, we fabricate efficient and stable photocathodes by integrating non-noble metal NiMoO4–xSx nanosheets with planar p-Si wafers, along with ultrathin TiO2 as a protective and passivating film at the intermediate and outermost layer. An onset potential of 0.3 V (vs RHE) and a photocurrent density of 5.1 mA cm–2 at −0.5 V (vs RHE) are obtained for the optimal photocathode, representing significant enhancement compared to the pristine Si wafers. Moreover, long-term measurement demonstr..." @default.
- W2788806270 created "2018-03-06" @default.
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- W2788806270 date "2018-02-22" @default.
- W2788806270 modified "2023-10-14" @default.
- W2788806270 title "Loading Amorphous NiMoO<sub>4–<i>x</i></sub>S<sub><i>x</i></sub> Nanosheet Cocatalyst to Improve Performance of <i>p</i>-Silicon Wafer Photocathode" @default.
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- W2788806270 doi "https://doi.org/10.1021/acsaem.8b00017" @default.
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