光电催化分解水用可见光响应型氧化物光阳极的改性研究进展（英文）

Visible Light Responsive Metal Oxide Photoanodes for Photoelectrochemical Water Splitting: a Comprehensive Review on Rational Materials Design

光电催化分解水是绿色制氢的重要途径之一。由于水氧化反应在热力学和动力学上极难发生,因而制备高效光阳极成为光电催化分解水的瓶颈问题。为满足未来商业化应用需求(太阳能制氢转换效率>10%),研制高效光阳极成为亟待解决的关键难题。研究表明,具有价格低廉、吸光性良好、毒性小且光电化学稳定性高等突出优点的可见光响应型氧化物:WO3、α-Fe2O3和Bi VO4,是目前光电催化分解水用光阳极的理想材料。在过去几十年里,围绕该类氧化物光阳极的研究已取得显著成果。本文重点论述了高效光电催化分解水制氢用WO3、α-Fe2O3和Bi VO4光阳极改性的研究进展。另外,文中简述了此类可见光响应型氧化物光阳极在无偏压光电催化分解水中的研究现状,并提出其存在的问题及未来发展方向。

Photoelectrochemical （PEC） water splitting provides a ＂green＂ approach for hydrogen production. Photoanodes for water oxidation reactions are the bottleneck for PEC water splitting due to the involved thermody- namic and kinetic challenges. To obtain the target of 10% solar-to-hydrogen （STH） efficiency toward practical ap- plications, efficient photoanodes should be developed. Owing to the intrinsic advantages of low cost, good light harvesting, low toxicity, and excellent （photo）-electrochemical stability, visible light responsive metal oxides such as WO3, α-Fe2O3 and BiVO4 have attracted great attention for potential photoanodes and significant achievements have been made in the past decades. In this review, the sate-of-the-art progresses of WO3, α-Fe2O3 and BiVO4 photoanodes are summarized with an emphasis on the rational materials design toward efficient PEC water splitting. Moreover, their applications in unassisted PEC water splitting systems are briefly introduced. The perspectives on the challenges and future development of visible light responsive metal oxide photoanodes are presented.