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Macroscopic Graphene Assemblies and its Potential as Smart Materials  
Macroscopic Graphene Assemblies and its Potential as Smart Materials
资料类型: PDF文件
关键词: Graphene  Macroscopic  architectures  Actuators  Sensors  
资料大小: 70K
所属学科: 通用高分子材料
来源: 来源网络
简介:
Asaclassicaltwo-dimensional(2D)nanoscalestructure,graphenepossessesremarkablemechanical,electrical,thermalandopticalproperties.Inthepastseveralyears.considerableattentionhasbeenpaidtodirectlyutilizeindividualgrapheneasbuildingblockforhighperformancenovelmaterials.Onthisway.productionofmacroscopicarchitectureswithcontrolledmicrostructuresusinggraphenesheetsasbuildingblocksisanimportantsteptowardpracticalapplications.Tothisend,variousmacroscopicgrapheneassemblieswereproducedincludingIDgraphenefibers,2Dgraphenefilmsand3Dgrapheneassemblies.Thesestructureshavedemonstratedpotentialapplicationsinvariousareas9suchassupercapacitorelectrodes,transparentandflexibleelectrodes,tissuescaffolds,catalysts,andgassensors.Inthiswork,2Dand3Dgraphenebasedmacroscopicarchitectureswerefabricatedbasedonself-assemblymethod.Theresultingmaterialsshowvarietiesoffascinatingfeatureswhichcannotbeachievedbyconventionalmaterials.Forinstance,2Dgraphenefilmshowsstrainhardeningeffectundercyclicloadingandunloading.Togetherwiththeirgoodelectricconductivity,thisfilmshowspotentialasanoveltypeofbiomimeticactuators.Inaddition,the3Dgraphenefoamscouldnotonlyactasalarge-scalestrainsensor,butalsoactuators.
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