KOH活化碳材料.pdf

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1、ViewArticleOnline/JournalHomepage/TableofContentsforthisissueJournalofDynamicArticleLinksC

2、ed8thAugust2012DOI:10.1039/c2jm34066fBecauseoftheiravailability,adjustablemicrostructure,varietiesofforms,andlargespecificsurfacearea,porouscarbonmaterialsareofincreasinginterestforuseinhydrogenstorageadsorbentsandelectrodematerialsinsupercapacitorsandlithium–sulfurcellsfromtheviewpointof

3、socialsustainabilityandenvironmentalfriendliness.Therefore,muchefforthasbeenmadetosynthesizeandtailorthemicrostructuresofporouscarbonmaterialsviavariousactivationprocedures(physicalandchemicalactivation).Inparticular,thechemicalactivationofvariouscarbonsourcesusingKOHastheactivatingreage

4、ntisverypromisingbecauseofitsloweractivationtemperatureandhigheryields,andwell-defined2
1microporesizedistributionandultrahighspecificsurfaceareaupto3000mgoftheresultingporouscarbons.Inthisfeaturearticle,wewillcoverrecentresearchprogresssince2007onthesynthesisofKOH-activatedcarbonsforhydro

5、genandelectricalenergystorage(supercapacitorsandlithium–sulfurbatteries).ThetexturalpropertiesandsurfacechemistryofKOH-activatedcarbonsdependonnotonlythesynthesisparameters,butalsodifferentcarbonsourcesemployedincludingfossil/biomass-derivedmaterials,syntheticorganicpolymers,andvariousna

6、nostructuredcarbons(e.g.carbonnanotubes,carbonnanofibers,carbonaerogels,carbide-derivedcarbons,graphene,etc.).FollowingtheintroductiontoKOHactivationmechanismsandprocessingtechnologies,thecharacteristicsandperformanceofKOH-activatedcarbonsaswellastheirrelationshipsaresummarizedanddiscusse

7、dthroughtheextensiveanalysisoftheliteraturebasedondifferentenergystoragesystems.DepartmentofInorganicChemistry,DresdenUniversityofTechnology,chemie.tu-dresden.de;stefan.kaskel@chemie.tu-dresden.de;Fax:+49Bergstrabe66,D-01069Dresden,Germany.E-mail:jiacheng.wang@35146337287