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首页> 外文期刊>Advanced Materials >Surface, Bulk, and Interface: Rational Design of Hematite Architecture toward Efficient Photo-Electrochemical Water Splitting
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Surface, Bulk, and Interface: Rational Design of Hematite Architecture toward Efficient Photo-Electrochemical Water Splitting

机译：表面，体积和界面：赤铁矿建筑结构的高效光电化学水分解设计

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摘要

Collecting and storing solar energy to hydrogen fuel through a photo-electrochemical (PEC) cell provides a clean and renewable pathway for future energy demands. Having earth-abundance, low biotoxicity, robustness, and an ideal n-type band position, hematite (-Fe2O3), the most common natural form of iron oxide, has occupied the research hotspot for decades. Here, a close look into recent progress of hematite photoanodes for PEC water splitting is provided. Effective approaches are introduced, such as cocatalysts loading and surface passivation layer deposition, to improve the hematite surface reaction in thermodynamics and kinetics. Second, typical methods for enhancing light absorption and accelerating charge transport in hematite bulk are reviewed, concentrating upon doping and nanostructuring. Third, the back contact between hematite and substrate, which affects interface states and electron transfer, is deliberated. In addition, perspectives on the key challenges and future prospects for the development of hematite photoelectrodes for PEC water splitting are given.
机译：通过光电化学（PEC）电池将太阳能收集和存储为氢燃料，为满足未来的能源需求提供了清洁，可再生的途径。赤铁矿（-Fe2O3）具有丰富的地球信息，低的生物毒性，坚固性和理想的n型能带位置，数十年来一直是研究热点。这里，提供了对用于PEC水分解的赤铁矿光阳极的最新进展的仔细研究。引入了有效的方法，例如助催化剂负载和表面钝化层沉积，以改善热力学和动力学中赤铁矿表面反应。其次，回顾了增强赤铁矿块中光吸收和加速电荷传输的典型方法，重点是掺杂和纳米结构。第三，研究了影响界面态和电子转移的赤铁矿与基体之间的背接触。此外，还就用于PEC水分解的赤铁矿光电极的发展面临的主要挑战和未来前景发表了看法。

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