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1、JournalofMaterialsChemistryAViewArticleOnlinePAPERViewJournal
2、ViewIssueSpecificsynthesisofCoS2nanoparticlesembeddedinporousAl2O3nanosheetsforefficienthydrogenCitethis:J.Mater.Chem.A,2017,5,2861evolutionandenhancedlithiumstorage†aaaabLingFang,YanZhang,Yongxi
3、nGuan,HuijuanZhang,ShilongWang*aandYuWang*CoS2nanoparticlesembeddedinAl2O3nanosheets(CoS2NP/Al2O3NSs)havebeendesignedandfabricatedusingacontrollablehydrothermalprocessfollowedbyasimplelow-temperaturesulfurizationstep.Theas-preparedCoS2NP/Al2O3NSsdisplayc
4、ombinedpropertiesofhighnanoporosity,thinthicknessandgoodstructuralstability.Whenusedasanelectrocatalystforthehydrogenevolutionreaction(HER),thecompositedemonstrateshighcatalyticactivity,includingasmalloverpotentialof153mV,asmallTafelslopeof50.9mVdecand
5、remarkablestability.Moreover,theCoS2NP/Al2O3Received13thDecember20161NSshaveapromisinglithium-storagecapabilitywithhighspecificcapacity(1150mAhgat100mAAccepted10thJanuary20171ginthefirstcycle)andenhancedcyclingstability(coulombicefficiencyofaround96%for15
6、0cycles).DOI:10.1039/c6ta10700aThefacilestrategyusedtosynthesizetheuniquearchitecturecouldbeexpandedtothepreparationofwww.rsc.org/MaterialsAothertransitionmetalsulfidesfortheHERandlithiumionbatteries(LIBs).IntroductionsynthesisofnanostructuredHERcatalysts
7、withlargely-exposedactivesitesandgoodstructuralstabilitycouldenhancetheircatalyticperformance.16Inthisvein,CoSmaterialswithuniqueSustainable,renewableandcleanpowersourcesthatcanalle-2viateenvironmentalpollutionandmeettheincreasingenergymorphologiesandstr
8、ucturesarepromisingchoicesfordemandsarecriticallyrequiredcurrently.1,2Hydrogenhasbeenenrichingthefamilyofcatalyticmaterialscontributingtoan3,4efficientHER.17hailedasoneoftheenergycarrierswiththemostpotential.Thehydrogenevolutionreaction(HER),whichisoneofth
9、evitalInadditiontoitsuseasanelectrocatalystforproducinghalf-reactionsinwatersplitting,hasbeenconsideredasancleanhydrogenfuel,CoS2isalsohighlyregardedasanalter-nativeanodematerialforlithium-ionbatteries(LIBs).18LIBsimportan
