文献类型：期刊文献

英文题名：Atomic heterointerface engineering overcomes the activity limitation of electrocatalysts and promises highly-efficient alkaline water splitting

作者：Xu, Qiucheng[1];Zhang, Jiahao[1];Zhang, Haoxuan[1];Zhang, Liyue[1];Chen, Ling[2];Hu, Yanjie[1];Jiang, Hao[1,2];Li, Chunzhong[1,2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Frontiers Sci Ctr Materiobiol & Dynam Chem, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, Shanghai Engn Res Ctr Hierarch Nanomat, Shanghai 200237, Peoples R China

年份：2021

卷号：14

期号：10

起止页码：5228

外文期刊名：ENERGY & ENVIRONMENTAL SCIENCE

收录：;EI(收录号：20214311064411);WOS:【SCI-EXPANDED(收录号:WOS:000695233300001)】；

基金：This work was supported by the National Natural Science Foundation of China (21838003, 91834301 and 51621002), the Shanghai Scientific and Technological Innovation Project (18JC1410600), the National Program for Support of Top-Notch Young Professionals, and the Fundamental Research Funds for the Central Universities (222201718002).

语种：英文

外文关键词：Atoms - Electrolysis - Hydrogen production - Reaction kinetics - Reaction intermediates - Ion exchange membranes

摘要：Alkaline water splitting, especially anion-exchange-membrane based water electrolysis, is an attractive way for low-cost and scalable H-2 production. Green electricity-driven alkaline water electrolysis requires that highly-efficient electrocatalysts be developed to further decrease the barriers of two half reactions - the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Various strategies have been exploited to date, among which atomic heterointerface engineering is the most promising strategy to overcome the intrinsic activity limitation of electrocatalysts. In this review, we thoroughly summarize the recent progress of atomic heterointerface engineering to improve the activity of electrocatalysts. The origin and rationale of the sluggish kinetics of the alkaline HER and OER are first introduced. Subsequently, the synergistic effects (ensemble effect and electron effect) of atomic heterointerface engineering to overcome the activity limitation are elaborated, in which the ensemble effect is helpful in optimizing the reaction pathways with enhanced reaction kinetics by creating a favorable heterointerface and the electron effect can balance the adsorption energies of reaction intermediates by coupling their electronic configurations. And then the rational design of the targeted electrocatalysts is concluded based on the heterointerface constituents and characteristics. At the end, some outlooks about the future development direction for optimizing and maximizing the interfacial active sites in the electrocatalysts are proposed.