Citethis:NewCarbonMaterials,2023,38(3):543-554DOI:10.1016/S1872-5805(23)60726-7TheinsituformationofZnSnanodotsembeddedinhoneycomb-likeN-Sco-dopedcarbonnanosheetsderivedfromwastebiomassforuseinlithium-ionbatteriesYUQiu-xiang1,LIHuan-xin1,2,*,WENYong-liang1,XUChen-xi1,QINShi-feng1,KUANGYa-fei1,ZHOUHai-hui1,*,HUANGZhong-yuan1,*（1.CollegeofChemistryandChemicalEngineering,HunanUniversity,Changsha,Hunan410082,China;2.DepartmentofEngineering,UniversityofCambridge,9JJThomsonAvenue,Cambridge,CB30FA,UK）Abstract：Ananocompositeofzincsulfidenanodotsimbeddedinhoneycomb-likeN-Sco-dopedcarbonnanosheets(ZnS/NS-CN)wassynthesizedfromwastebiomassorangepeelusingZnCl2asthehardtemplateandzincsource,andmelamineandthioureaastherespectivenitrogenandsulfursources.WhenusedastheanodematerialinLi-ionbatteries,ZnS/NS-CNhasahighreversiblecapacity(853.5mAhg−1at0.1Ag−1after300cycles),anexcellentlong-termcyclingstability(70.1%capacityretentionafter1000cyclesat5Ag−1)andanoutstandingratecapability.Besides,aZnS/NS-CN//LiNiCoMnO2fullcelltestedat0.5-4Vhasanex-cellentbatteryperformance(140.4mAhg−1at0.2Cafter150cycleswithanenergydensityof132.4Whkg−1).Keywords:ZnSnanodots；N-Sco-dopedcarbonnanosheets；Wastebiomass；Li-ionbatteries1IntroductionEnormouseffortshavebeendevotedtothede-velopmentofnewenergystoragedevices,amongwhich,rechargeablebatteriessuchasLIBshavebeenextensivelyinvestigatedasoneofthemostpromisingcandidatesforpoweringelectronicsduetotheirdesir-abletheoreticalcapacity,highenergydensity,satis-factoryreversibilityandreasonablemanufacturingcost.Nevertheless,somechallengesliketheactualca-pacitybeinggenerallyfarbelowthetheoreticalvalue,theinstabilityunderhighcurrentconditions,andthepollutioncausedbyrawmaterials,paintagrimpic-tureforthefutureofLIBs[1–5].Therefore,theexplora-tionofsuitableelectrodematerialsforrealizingthenext-generationofLIBscontinuestobeahotre-searchtopic[6–11].Carbonmaterials(suchasgraphite,porouscar-bonandgraphene)havenumerousadvantagesthatin-cludelowprice,highelectricalc...
