Citethis:NewCarbonMaterials,2024,39(1):1-16DOI:10.1016/S1872-5805(24)60831-0Carbon-basedelectrocatalystsforwatersplittingathigh-current-densities:AreviewCHENYu-xiang1,2,*,ZHAOXiu-hui3,DONGPeng2,ZHANGYing-jie2,ZOUYu-qin4,*,WANGShuang-yin4（1.FacultyofMaterialScienceandEngineering,KunmingUniversityofScienceandTechnology,Kunming650093,China;2.NationalandLocalJointEngineeringLaboratoryforLithium-ionBatteriesandMaterialsPreparationTechnology,KeyLaboratoryofAdvancedBatteryMaterialsofYunnanProvince,KunmingUniversityofScienceandTechnology,Kunming650093,China;3.CollegeofAerospaceScienceandEngineering,NationalUniversityofDefenseTechnology,Changsha410073,China;4.StateKeyLaboratoryofChemo/Bio-SensingandChemometrics,CollegeofChemistryandChemicalEngineering,AdvancedCatalyticEngineeringRe-searchCenteroftheMinistryofEducation,HunanUniversity,Changsha410082,China）Abstract：Electrocatalyticwatersplittingisapromisingstrategytogeneratehydrogenusingrenewableenergyundermildcondi-tions.Carbon-basedmaterialshaveattractedattentioninelectrocatalyticwatersplittingbecauseoftheirdistinctivefeaturessuchashighspecificarea,highelectronmobilityandabundantnaturalresources.Hydrogenproducedbyindustrialelectrocatalyticwatersplittinginalargequantityrequireselectrocatalysisatalowoverpotentialatalargecurrentdensity.Substantialeffortsfocusedonfundamentalresearchhavebeenmade,whilemuchlessattentionhasbeenpaidtothehigh-current-densitytest.Therearemanydis-tinctdifferencesinelectrocatalysistosplitwaterusinglowandhighcurrentdensitiessuchasthebubblephenomenon,localenviron-mentaroundactivesites,andstability.Recentresearchprogressoncarbon-basedelectrocatalystsforwatersplittingatlowandhighcurrentdensitiesissummarized,significantchallengesandprospectsforcarbon-basedelectrocatalystsarediscussed,andpromisingstrategiesareproposed.Keywords:Electrocatalyticwatersplitting；Carbon-basedmaterial；Bubble；Highcurrentdensity；Decouple1IntroductionHydrogenemergesglobalwideapplicationsinpetroleumrefining,industrialproduction...
