电化学（中英文）2024，Vol.30Issue(1)：12-35,24.DOI:10.13208/j.electrochem.2305101
用于促进碱性介质中析氢反应动力学的异质结构电催化剂的合理设计
Rational Design of Heterostructured Nanomaterials for Accelerating Electrocatalytic Hydrogen Evolution Reaction Kinetics in Alkaline Media
摘要
Abstract
Owing to the merits of high energy density,as well as clean and sustainable properties,hydrogen has been deemed to be a prominent alternative energy to traditional fossil fuels.Electrocatalytic hydrogen evolution reaction(HER)has been considered to be mostly promising for achieving green hydrogen production,and has been widely studied in acidic and alkaline solutions.In particular,HER in alkaline media has high potential to achieve large-scale hydrogen production because of the increased durability of electrode materials.However,for the currently most prominent catalyst Pt,its HER kinetics in an alkaline solution is generally 2-3 orders lower than that occurring in an acidic solution because of the low H+concentration in alkaline electrolytes.Fortunately,construction of heterostructured electrocatalysts has proved to be an efficient strategy for boosting alkaline HER kinetics because of their various structural merits.The synergistic effect is a unique characteristic of heterostructures,which means that one functional active site serves as a promoter for water dissociation and another one takes a charge of moderate hydrogen adsorption,thus synergistically improving HER performance.In addition,each building block of the heterostructures is tunable,providing more flexibility and chances to construct optimal catalysts.Furthermore,due to the presence of Fermi energy difference between the two components at the interface,the electronic structure of each component could possibly be rationally modulated,thus much enhanced HER performance in alkaline electrolyte can be ach-ieved.With a deeper understanding of on nanoscience and rapid development of nanotechnology,more sophisticated alternative designing strategies have been explored for constructing high-performance heterostructured electro-catalysts.This review presents an outline of the latest development of heterostructured catalysts toward alkaline HER and the rational design principles for constructing interfacial heterostructures to accelerate alkaline HER kinetics.The basic reaction pathways of HER in alkaline media are first described,and then emerging efficient strategies to promote alkaline HER kinetics,including synergistic effect,strain effect,electronic interaction,phase engineering,and ar-chitecture engineering.Finally,current existing challenges and research opportunities that deserve further investi-gation are proposed for the consideration of novel heterostructures towards practical applications.关键词
界面异质结构/制氢/水离解/氢吸附/协同效应Key words
Interfacial heterostructure/Hydrogen production/Water dissociation/Hydrogen adsorption/Synergistic effect引用本文复制引用
马海斌,周晓延,李嘉艺,程洪飞,马吉伟..用于促进碱性介质中析氢反应动力学的异质结构电催化剂的合理设计[J].电化学（中英文）,2024,30(1):12-35,24.基金项目
This work was supported by the National Natu-ral Science Foundation of China(No.22179098). （No.22179098）
