氧还原反应电催化剂研究进展

Research progress in electrocatalysts for oxygen reduction reaction

燃料电池具有高效、绿色、燃料来源广等优点,被认为是解决能源与环境问题最有效方法之一。催化剂在电池能量转化中至关重要,但贵金属催化剂成本高、稳定性差等问题大大限制了其工业应用,因此发展新型高效且廉价的催化剂具有重要意义。基于氧还原反应催化剂存在的问题,对反应的机理进行了分析,讨论了催化剂性能的影响因素。重点总结了各类催化剂制备的优缺点,提出氧还原催化剂面临的挑战及发展前景。

Fuel cell has the advantages of high efficiency,green and wide source of fuel,so it was considered to be one of the most effective methods to solve the problems of energy and environment.Catalysts play an key role in battery energy conversion,but the high cost and poor stability of precious metal catalysts greatly limit their industrial application.Therefore,it is of great significance to develop new catalysts with high efficiency and low cost.In this paper,based on the problems of the catalyst for oxygen reduction reaction,the reaction mechanism was analyzed and the factors affecting the performance of the catalyst were discussed.The advantages and disadvantages of all kinds of catalysts are summarized emphatically,and the challenges and development prospects of oxygen reduction catalysts are put forward.