NiO decorated Mo:BiVO4 photoanode with enhanced visible-light photoelectrochemical activity
NiO decorated Mo:BiVO4 photoanode with enhanced visible-light photoelectrochemical activity
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NiO 修饰的 Mo:BiVO4 光阳极具有增强的可见光光电化学活性
DOI：
10.1016/j.ijhydene.2014.01.072
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发表时间：
2014-03
影响因子：
7.2
通讯作者：
Lu, Xihong
中科院分区：
文献类型：
--
作者：
Li, Wei;Qiu, Rongliang;Tong, Yexiang;Lu, Xihong
近年来，从清洁和可持续能源经济的角度来看，光电化学水分解越来越受到人们的关注。在此，我们报道了 NiO 功能化 Mo 掺杂 BiVO4（表示为 NiO/Mo:BiVO4）纳米带的合成及其增强的光电化学活性，可有效氧化水。制备的 NiO/Mo:BiVO4p-n 结结构比原始 BiVO4 和 Mo:BiVO4 显示出更高的水分解活性。这种明显的增强是由于Mo掺杂增加了施主密度以及新型p-n结复合结构光激发电子-空穴对的快速分离。在光照射下，Mo:BiVO4导带(CB)中的光生空穴在内电场的作用下会方便地转移到p型NiO上。同时，空穴将水氧化成氧气，电子转移到对电极（铂电极）产生氢气。这种新颖的 p-n 结结构可以为开发用于水分解的高性能光电阳极开辟新的机会。
Photoelectrochemical water splitting has attracted increasing attention recently in the perspective of clean and sustainable energy economy. Herein, we reported the synthesis of NiO functionalized Mo doped BiVO4(denoted as NiO/Mo:BiVO4) nanobelts and their enhanced photoelectrochemical activity for efficient water oxidation. The prepared NiO/Mo:BiVO4p–n junction structure showed much higher water splitting activity than the pristine BiVO4and Mo:BiVO4. Such obvious enhancement are due to the increased donor density by doping with Mo and fast separation of the photoexcited electron–hole pairs by the novel p–n junction composite structure. Under light irradiation, photoexcited holes in the conduction band (CB) of Mo:BiVO4will conveniently transfer to the p-type NiO with the effect of the inner electric field. Meanwhile, the holes would oxidize the water into oxygen and the electrons transfer to the counter electrode (Pt electrode) to produce hydrogen. This novel p–n junction structure could open up new opportunities to develop high-performance photoanode for water splitting.
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影响因子：
3.7
作者：
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通讯作者：
D. Monllor-Satoca;R. Gómez
影响因子：
3.3
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
32.5
作者：
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通讯作者：
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影响因子：
6.6
作者：
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通讯作者：
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