Combinatorial approaches for the identification and optimization of oxide semiconductors for efficient solar photoelectrolysis.
Combinatorial approaches for the identification and optimization of oxide semiconductors for efficient solar photoelectrolysis.
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DOI：
10.1039/b719545c
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发表时间：
2009
影响因子：
46.2
通讯作者：
Michael E. Woodhouse;B. Parkinson
中科院分区：
文献类型：
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作者：
Michael E. Woodhouse;B. Parkinson
通过水光电解利用太阳光产生具有成本效益的氢气是将世界过渡到基于可再生能源的氢经济所需的关键突破。基于半导体的光电解系统可以具有优于使用耦合到电解器的光伏电池或用于水分解的太阳能热化学循环的成本优势。不幸的是，没有已知的半导体材料或具有有效地光电解水所需的电子性质和稳定性的材料组合。半导体氧化物可以具有所需的稳定性，但目前的理论方法不足以先验地识别具有所需性质的材料。最有可能的是，所发现的材料将是一种含有许多元素的复合氧化物，其中每种元素都有助于所需的材料特性，如太阳光谱的光吸收，稳定性和电催化活性。大量可能的多组分金属氧化物，即使只考虑三元或四元材料，指向使用高通量组合方法来发现和优化候选材料。在这篇评论中，我们将介绍一些组合生产和筛选金属氧化物的技术，以提高它们在阳光下有效分解水的能力（88篇参考文献）。
The cost effective generation of hydrogen with sunlight via water photoelectrolysis is the critical breakthrough needed to transition the world to a renewable energy based hydrogen economy. A semiconductor based photoelectrolysis system may have cost advantages over using either a photovoltaic cell coupled to an electrolyzer or solar thermochemical cycles for water splitting. Unfortunately there is no known semiconducting material or combination of materials with the electronic properties and stability needed to efficiently photoelectrolyze water. Semiconducting oxides can have the required stability but present theoretical methods are insufficient to a priori identify materials with the required properties. Most likely, the discovered material will be a complex oxide containing many elements whereby each contributes to the required material properties such as light absorption across the solar spectrum, stability and electrocatalytic activity. The large number of possible multicomponent metal oxides, even if only ternary or quaternary materials are considered, points to the use of high-throughput combinatorial methods to discover and optimize candidate materials. In this critical review, we will cover some techniques for the combinatorial production and screening of metal oxides for their ability to efficiently split water with sunlight (88 references).