石墨烯材料--.pptx
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石墨烯材料--.pptx

石墨烯材料--.pptx

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石墨烯材料在超级电容器中的应用石墨烯材料石墨烯在电容器电极材料中研究现状相关文献复合材料报导(ForSC)文献简述1简述Fig.1(a)LowmagnificationFEG-SEMimageofloosegraphenenanosheetpowders.(b)HighmagnificationFEG-SEMviewofgraphenenanosheetpetals.Fig.2(a)LowmagnificationTEMimageofgiantgraphenenanosheets,resemblingwavysilkundertheTEMbeam.(b)HighmagnificationTEMimageofthebasalplaneofgraphenenanosheets.(c)HRTEMimageofstackedgraphenenanosheets,inwhichthelatticeplanescorrespondto(002)planeswithaninterlayerdistanceof0.37nm.TheinsetistheSAEDpatternrecordedonthebasalplaneofgraphenenanosheet.文献简述2材料制备及分析Fig.1.X-raydiffractionpatterns:(a)vacuumdriedgraphenenanosheetsand(b)Mn3O4/graphenenanocompositesshowingthediffractionlinesofHausmanniteMn3O4andgraphenenanosheets(GNS).Fig.2.FESEMimagesoftheas-preparedMn3O4/graphenenanocomposites:(a)lowmagnificationimage,showingthegeneralmorphologyofgraphenenanosheetswithembeddedMn3O4nanoparticlesand(b)highmagnificationimage,illustratingMn3O4nanoparticlesongraphenenanosheets.Fig.3.TEMimagesoftheas-preparedMn3O4/graphenenanocomposites:(a)alowmagnificationTEMimageshowingdenseMn3O4nanoparticlesdepositedonalargeareaofgraphenenanosheetsandtheSAEDpattern(inset)displayinggraphene(002)andMn3O4(103),(211),and(220)diffractionrings;(b)anHRTEMimageillustratingthed-spacingofMn3O4nanoparticles,whichwereevaluatedtobearound10nminsize.Fig.4.AFMimagesoftheas-preparedMn3O4/graphenenanocomposites:(left)animagetakeninascanareaof500nm×500nm,displayinggraphenenanosheets(indicatedbyarrows)withembeddedMn3O4nanoparticles(indicatedbycircles);(right)heightprofileacrosstheexaminedarea,asindicatedbytheredline,fromwhichtheparticlesizewasdeterminedtobe9.7nmand12.6nmforparticles(a)and(b),respectively.Fig.5.CVcurvesofdriedgraphenenanosheetsata5mVs−1scanratein(a)1MNa2SO4and(b)6MKOH,andCVcurvesofMn3O4/graphenenanocompositepowdersatscanratesof5mVs−1,10mVs−1,20mVs−1,and50mVs−1in(c)1MNa2SO4and(d)6MKOH.结论谢谢!