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首页> 外文期刊>Advanced energy materials >Recent Advancement of p- and d-Block Elements, Single Atoms, and Graphene-Based Photoelectrochemical Electrodes for Water Splitting
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Recent Advancement of p- and d-Block Elements, Single Atoms, and Graphene-Based Photoelectrochemical Electrodes for Water Splitting

机译：用于水分裂的P型和D嵌段元件，单原子和石墨烯的光电化学电极的最新进展

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摘要

Solar-assisted photoelectrochemical (PEC) water splitting to produce hydrogen energy is considered the most promising solution for clean, green, and renewable sources of energy. For scaled production of hydrogen and oxygen, highly active, robust, and cost-effective PEC electrodes are required. However, most of the available semiconductors as a PEC electrodes have poor light absorption, material degradation, charge separation, and transportability, which result in very low efficiency for photo-water splitting. Generally, a promising photoelectrode is obtained when the surface of the semiconductor is modified/decorated with a suitable co-catalyst because it increases the light absorbance spectrum and prevents electron-hole recombination during photoelectrode reactions. In this regard, numerous p- and d-block elements, single atoms, and graphene-based PEC electrodes have been widely used as semiconductor/co-catalyst junctions to boost the performances of PEC overall water splitting. This review enumerates the recent progress and applications of p- and d-block elements, single atoms, and graphene-based PEC electrodes for water splitting. The focus is placed on fundamental mechanism, efficiency, cells design, and various aspects that contribute to the large-scale prototype device. Finally, future perspectives, summary, challenges, and outlook for improving the activity of PEC photoelectrodes toward whole-cell water splitting are addressed.
机译：太阳能辅助光电化学（PEC）水分裂以产生氢能被认为是最有前途的清洁，绿色和可再生能源源的解决方案。对于氢气和氧的缩放产生，需要高活性，稳健和经济高效的PEC电极。然而，大多数可用的半导体作为PEC电极具有差的光吸收，材料降解，电荷分离和可运输性，这导致光水分裂效率非常低。通常，当用合适的助催化剂改变/装饰半导体的表面时，获得有希望的光电电极，因为它增加了光吸收光谱并防止了光电极反应期间的电子空穴重组。在这方面，许多P型和D嵌段元件，单个原子和基于石墨烯的PEC电极已被广泛用作半导体/助催化剂结，以提高PEC整体水分裂的性能。本次审查枚举了用于水分裂的P和D-Block元件，单个原子和基于石墨烯的PEC电极的最近进度和应用。将重点放在基本机制，效率，细胞设计和有助于大型原型设备的各个方面。最后，解决了改善PEC光电区的活动的未来观点，摘要，挑战和前景都是解决了整个细胞分裂的。

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