案例納米材料

InInsitupolycondensationapproachtoNHONHH2N(CH2)5COOHOOHOOHOCOOOHOOCOHOO

HOO

Zhen250oOOOne-potOne-potreducingofGOand 0.580.5 Graphene@nylon6 Z.Xu,C.Gao.Macromolecules2010,43, Graphene@nylon6/nylon6composite

ω

StressStress110

TensileTensilestrengthincreasedby2.1foldsandYoung’sincreasedby2.4foldswiththegrapheneloadingof0.1石墨烯化學(xué)： Z. Z.Xu,C.Gao,ACSNano2011,5, 寬分布氧化石墨烯形成向0.850.85

PP1 123456123456 Z.Xu,C.Gao,ACSNano2011,5, Grapheneoxide:Grapheneoxide:chiralliquidcrystals0.80.82NarrowdistributedgrapheneoxideZ.Z.Xu,C.Gao.NatureCommun.2011,2,Grapheneoxide:Grapheneoxide:chiralliquidcrystalsTypicalPOM

3003000.780.380.075EllipticityEllipticity0Fingerprinttexture:chiralliquidcrystal

Strongcirculardichroismsignal

Z.Xu,C.Gao.NatureCommun.2011,2, Grapheneoxide:Grapheneoxide:chiralliquidcrystalsSAXS:Lamellar Grapheneoxide:Grapheneoxide:chiralliquidcrystalsnnHelicalYZnθnpXTwistlamellarblockmodelforgrapheneCLCTheexampleofCLCfor2DcolloidsZ.Xu,C.Gao.NatureCommun.2011,2, Grapheneoxide:Grapheneoxide:chiralliquidcrystals200 200252525300Solublegraphene—FluidSolublegraphene—FluidOutlineandOur—Ordered—OrderedGrapheneGraphenefibresbywet-spinningPressure/紡絲擠出Pressure/紡絲擠出壓Dope/紡絲Spinneret/噴絲Coagulationbath/NeatNeatGraphene Z.Xu,C.Gao.NatureCommun.2011,2,NeatNeatGraphene Strong,flexible,conductive, NatureNatureselected2011“imagesoftheReportedandHighlightedbyNatureNews,ScientificAmerican,NatureAsiaPacific,ExtremeTec,etc.This400-μm-longThis400-μm-longknotingraphene,tiedbyZhenXuandChaoGaoatZhejiangUniversityinChina,showsexquisitecontrolatthenanoscale.XuandGaospunflatliquidcrystalsofgrapheneoxideintoflexiblefibresmetreslong,andthenconvertedthemintographenethreads. 1.美“奮進(jìn)”號(hào)航天飛機(jī)退休之旅2.俄“號(hào)”宇宙飛船返 3.及核4.哺乳動(dòng)物細(xì)胞花 6.昆蟲(chóng)視覺(jué)通訊的色彩7.非洲犀牛的棲息地正在喪 10.敲除“溫順 的狂暴老 11.美科學(xué)家制造的世界最輕材

8.小行星的“臉GrapheneFibers:Stronger(strength)?Higher(conductivity)?Lighter(weight)?MoreUltrastrongUltrastrongFibersAssembledGiantGrapheneSheets500.82gLC500.82gLCS-1.3S- Coagulation200200200200ZhenZhenXu,ChaoGao,etal.,Adv.Mater.,2013,25,HighlightedbyWileyMaterialsViewUltrastrongUltrastrongFibersAssembledGiantGrapheneSheets PolarizedOpticalMicroscopyImage65UltrastrongUltrastrongFibersAssembledGiantGrapheneSheets551CompactStackedLayeredZhenZhenXu,ChaoGao,etal.,Adv.Mater.,2013,25, TensileTensilestrength

RGGFKOHGGOF-GGOFref.ref.RGGGGOTensilestrength0

Caion-crosslinkedgraphenefibresshowtensilestrengthupto0.5GPaUltrastrongUltrastrongFibersAssembledGiantGrapheneSheetsaaFiberscb10020d00

IVIVSiConductivity

Ag-dopedhighlyconductivegraphene330%BinaryG-Ag330%StretchableStretchableZhenXu,ChaoGao,etal.,Adv.Mater.2013,25, GrapheneAerogelFibersZhenZhenXu,ChaoGao,etal.,ACSNano,2012,6,GrapheneAerogelFibersOrientedalongaxisdirection,core- ZhenZhenXu,ChaoGao,etal.,ACSNano,2012,6,GrapheneAerogelFibers100100FlexibleandStrong：lifting>20,000timesofownweightsZhenZhenXu,ChaoGao,etal.,ACSNano,2012,6,GrapheneAerogelFibersHighconductivity(4.9x103S/m)Highsurfacearea(>800m2/g)DC3‘ON’‘OFF’ZhenZhenXu,ChaoGao,etal.,ACSNano,2012,6,FlexibleFlexiblegraphenefibreRSCAdv.,in

Cycle

Bending BendingRSCAdv.,in“Brick“BrickandMortar”StructuredBio-mimeticNeatgraphenefiberscompositefibers?Graphene-polymerGraphene-polymernacre-mimetic“BrickandMortar”500500 22Km‐scalecompositeC.Gao*,etal.,Sci.Rep.2012,2,767;Nanoscale2013,5,Graphene-polymernacre-mimeticTensileTensileStrength0

ReportedNacrereported

Ourcomposite Thestrengthandtoughnessare5and10foldsofFavorableelectricalC.C.Gao,etal.,Sci.Rep.2012,2,767;2013,3,Nanoscale2013,5,4370.Macromolecules2013,in“Brick“BrickandMortar”StructuredBio-mimetica

1M1

1M TensilestrengthTensilestrength One 0

NaOH72

NaOH48HCl24 HCl24Excellentfornacre-mimic GrapheneGrapheneGrapheneLiquid1D2D3D1 1

O

O

O OY.Han,Z.Xu,C.Gao.Adv.Funct.Mater.,2013,29, Methylblue(799.8),methylorange(327.3),DirectredHighflux(21Lm-2h-1bar-HighrejectionfordyesModeraterejectionforsalts(50-Lowloading(343Daerogel:Theultralight astic502502PPR

1,000H.Sun,Z.Xu,C.Gao,Adv.Mater.2013,25,Top3mostaccessedpaperinthepastyearforallAMThedesignproperties TbinaryGiantsizeofGOfortherecordlowdensity0.16mg/cm3(1/7air)ThesynergisticeffectbetweenGandCNTfor

EfficientabsorptionforHighcapacity3Daerogel:Th