过渡金属水氧化催化剂及光阳极研究进展

Progress in Transition Metal Water Oxidation Catalysts and Photoanode Photoelectrochemical Water Splitting

光电化学(PEC)分解水为太阳能转换为氢能提供了一种极具潜力的绿色、可持续发展策略。复杂缓慢的水氧化反应限制了水分解的速率,因此高效光阳极的设计和制备被广泛关注和深入研究。总结了过渡金属水氧化催化剂,包括多相和均相非贵金属水氧化催化剂以及贵金属水氧化催化剂的研究进展。同时,介绍了过渡金属基光阳极的构筑及其性能,包括无机半导体光阳极TiO_(2)、Fe_(2)O_(3)、BiVO_(4)以及染料敏化光阳极。最后,提出构建高效稳定的水分解光阳极的策略及发展方向,为其将来在工业规模上实现高效和经济的太阳能—氢能转换提供参考。

Photoelectrochemical(PEC)water splitting offers a compelling and sustainable strategy to convert solar energy to hydrogen.The complex and slow water oxidation reaction limits the rate of water splitting,which has led to intensive research on the design and preparation of efficient photoanodes.The transition metal water oxidation catalysts,including heterogeneous and homogeneous noble-free metal water oxidation catalysts and noble metal water oxidation catalysts,will be summarized.The construction of transition metal-based photoanodes and their properties will be presented,including inorganic semiconductor photoanodes TiO_(2),Fe_(2)O_(3),BiVO_(4)and dye-sensitized photoanodes.Strategies and development for the construction of efficient and stable water splitting photoanodes are proposed to provide reference for the realization of efficient and economical solar-hydrogen conversion on industrial scale in the future.