碱式电解水非贵金属阴极材料研究进展

RESEARCH PROGRESS OF NON-NOBLE METAL CATHODE MATERIALS FOR ALKALINE WATER ELECTROLYSIS

碱式电解水是最成熟的电解水制氢技术,由于采用非贵金属催化剂,因此成本较低,已被广泛应用。但非贵金属催化剂的采用,导致其电解效率和工作电流密度偏低,限制了其发展和应用。因此本文主要综述了通过氮化、磷化、硫化以及合金化,有效提高元素催化活性,从而获得高性能催化材料的方法。而应用密度泛函理论可对催化材料进行设计,更加高效便捷的获得高活性催化材料。最后,对碱式电解水非贵金属阴极材料的未来发展方向做出了总结。

Alkaline water electrolysis is the most mature hydrogen production technology of water electrolysis,because of the use of non-precious metal catalyst,so the cost is low,and has been widely used.However,the adoption of non-precious metal catalyst leads to its low electrolysis efficiency and working current density,which limits its development and application.Therefore,this paper mainly summarizes the methods of effectively improving the catalytic activity of elements by nitriding,phosphating,sulfurizing and alloying,so as to obtain high-performance catalytic materials.The application of density functional theory can design catalytic materials,and obtain high-activity catalytic materials more efficiently and conveniently.Finally,the future development direction of non-precious metal cathode materials for alkaline electrolytic water is summarized.