特殊结构、高稳定性电解海水OER催化剂的研究进展

Research progress on OER catalyst with special structure and high stability for seawater electrolysis

电解海水制氢技术受到了越来越多的关注。因此,设计开发高效、稳定的电解天然海水(或盐水电解质)制氢催化剂具有重要意义。首先,分析了电解海水所面临的现状和挑战;接着,对电解海水催化剂的设计思路与改性方法进行了总结,综述了三维分层多孔纳米结构、保护层结构和表面润湿性特殊结构催化剂在提高催化剂稳定性和选择性方面的最新研究进展;最后,对电解海水催化剂所面临的挑战和发展方向进行了总结和展望。指出未来研究需将实验研究、理论研究和表征技术相结合,开发出更高效、稳定和高选择性的催化剂,以满足电解海水工业化应用的要求。

Seawater electrolysis,for hydrogen production has attracted more and more attention.Therefore,it is of great significance to design and develop efficient and stable catalysts for hydrogen production through natural seawater(or brine electrolyte)electrolysis.Herein,the status quo of seawater electrolysis was firstly analyzed.Then,the design ideas and modification methods of electrocatalysts for seawater electrolysis were summarized,followed by review on the latest research progress in the synthesis of efficient and stable catalysts for seawater electrolysis via construction of special structure,such as three-dimensional layered porous nano structure,protective layer structure and surface wettability structure.Finally,the existing challenges and development directions were summarized and prospected.It was suggested that,in the future research,combination of experimental and theoretical research as well as characterization technique,was needed to develop more efficient,stable and highly selective catalysts so as to meet the requirements of the industrial application of seawater electrolysis.