摘要
The oxygen evolution reaction(OER)plays an essential role in many energy storage and conversion technologies,but its high overpotential and sluggish kinetics seriously restrict its energy efficiency.The development of efficient and inexpensive OER electrocatalysts remains a grand challenge.Twodimensional(2D)materials with their unique structure and electronic properties have wide application prospects for OER.In this review,first introducing OER electrocatalytic mechanisms and some crucial parameters for evaluating OER electrocatalysts,the latest progress in the design and construction of 2D materials for OER is systematically discussed,including layered double hydroxides,2D carbon materials,transition metal dichalcogenides,metal oxide and phosphide nanosheets,metal–organic frameworks,covalent-organic frameworks,and MXenes.Obviously,some effective design and optimization strategies to improve the electrocatalytic activity and durability of 2D materials such as OER electrocatalysts have been comprehensively generalized.The advantages and shortcomings of these 2D materials are analyzed in detail,and their practical applications are explained in depth,which is crucial for the rational design of high-performance OER electrocatalysts.Finally,the challenges and future development opportunities for 2D materials in enhanced OER are discussed.Our review is expected to provide clear guidance for the development of new low-cost 2D materials for advanced OER electrocatalysts.
基金
the Youth Talents Program of China,the Key Research and Development Projects in Shaanxi Province(grant no.2021GXLH-Z-072)
the State Key Laboratory of Power System and Generation Equipment(grant no.SKLD21KM07)
the National Natural Science Foundation of China-NSAF Joint Fund(CN)(grant no.U2230113).
