镍铁水滑石的合成、改性及电解水性能研究进展

Progress on Ni Fe Layered Double Hydroxides for Water Splitting

介绍了镍铁水滑石在电解水催化剂中的重要地位,阐述了电解水的基本机理,重点综述了水滑石的合成以及改性方法。目前合成方法主要为:尿素水解法、共沉淀法、MOFs前驱体法;其次现有改性方法主要分为:利用剥离降低水滑石的尺寸和厚度,掺杂阳离子改变水滑石的电子结构,与外部导电材料复合来增加其导电性,引入空位修饰催化剂表面,并对这些方法改性后的关键电解水性能数据进行对比。最后,提出了镍铁水滑石电解水性能研究面临的挑战及展望。

The important position of nickel-iron hydrotalcite in the electrolysis water catalyst is introduced, the basic mechanism of electrolysis water is explained, and the synthesis and modification methods of hydrotalcite are mainly reviewed. The current synthesis methods are mainly: urea hydrolysis method, co-precipitation method,MOFs precursor method;secondly, the existing modification methods are mainly divided into: using stripping to reduce the size and thickness of the hydrotalcite, doping with cations to change the electronic structure of the hydrotalcite, and External conductive materials are compounded to increase its conductivity, vacancies are introduced to modify the surface of the catalyst, and the key electrolytic water performance data modified by these methods are compared. Finally, the challenges and prospects of nickel-iron hydrotalcite electrolyzed water performance research are presented.