1.Introduction.Hydrogen is considered as a viable alternative to fossil fuels[1,2].Large-scale hydrogen production by electrochemical water splitting is regarded as an important approach.It consists of two half-reacti...1.Introduction.Hydrogen is considered as a viable alternative to fossil fuels[1,2].Large-scale hydrogen production by electrochemical water splitting is regarded as an important approach.It consists of two half-reactions:hydrogen evolution reaction(HER)at the cathode and oxygen evolution reaction(OER)at the anode[3].Compared to the HER,the OER has sluggish kinetic and large overpotentials,re-sulting from the complex oxidation pathway[4,5].Although RuO_(2) and IrO_(2) have excellent catalytic OER performance[6],their large-scale deployment is unfeasible due to the scarcity and high cost of these noble metal elements.Thus,cheap OER electrocatalysts have been actively investigated[7].展开更多
基金the Sichuan Science and Technology Program(project Nos.2022ZYD0016 and 2023JDRC0013)the National Natural Science Foundation of China(project No.21776120)+2 种基金Xuan Zhang and Jan Fransaer are grateful for the Research Foundation–Flanders(FWO)project(No.12ZV320N)Xuan Zhang is grateful to the National Natural Science Foundation of China(No.22005250)Wei Zhang,Wei Guo,Sijie Xie,and Zhenhong Xue are grateful to the China Scholarship Council(CSC).
文摘1.Introduction.Hydrogen is considered as a viable alternative to fossil fuels[1,2].Large-scale hydrogen production by electrochemical water splitting is regarded as an important approach.It consists of two half-reactions:hydrogen evolution reaction(HER)at the cathode and oxygen evolution reaction(OER)at the anode[3].Compared to the HER,the OER has sluggish kinetic and large overpotentials,re-sulting from the complex oxidation pathway[4,5].Although RuO_(2) and IrO_(2) have excellent catalytic OER performance[6],their large-scale deployment is unfeasible due to the scarcity and high cost of these noble metal elements.Thus,cheap OER electrocatalysts have been actively investigated[7].
