Porous Ni014Mn086O143 hollow microspheres as highperforming supplementary dataWord文档下载推荐.docx
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Porous Ni014Mn086O143 hollow microspheres as highperforming supplementary dataWord文档下载推荐.docx
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cStateKeyLaboratoryofAdvancedTechnologyforMaterialsSynthesisandProcessing,WUT-HarvardJointNanoKeyLaboratory,WuhanUniversityofTechnology,Wuhan430070,China
*Correspondingauthors.Tel:
86-21-54742827;
Fax:
86-21-54741297;
E-mail:
yuanxx@(X.Yuan),jiujun@shaw.ca(J.J.Zhang)
Fig.S1SEMimagesoftheNi0.14Mn0.86CO3microspheres
Fig.S2XRDpatternoftheNi0.14Mn0.86CO3microspheres
Fig.S3SEMimagesoftheMnCO3microspheres
Fig.S4XRDpatternoftheMnCO3microspheres
Fig.S5XRDpatternofthetheNiCO3
Fig.S6XRDpatternoftheNi0.33Mn0.67CO3
Fig.S7TGAcurveoftheNi0.14Mn0.86CO3microspheresinairatmosphere
TherearethreeobviousweightlossstepsintheTGAcurveofNi014Mn0.86CO3.Thefirststepbelow200º
Cmaybeattributedtothelossofadsorbedwater,thesecondonetothethermaldecompositionofNi0.14Mn0.86CO3intoNi0.14Mn0.86O1.5(0.36Mn2O3/0.14NiMnO3),andthethirdoneisassignedtotheconversionofNi0.14Mn0.86O1.5intoNi0.14Mn0.86O1.43(0.29Mn2O3/0.14NiMn2O4)[1].Theparticularconversionreactionsareasfollows:
Thesecondstep:
Thethirdstep:
Fig.S8EDXoftheNi0.14Mn0.86O1.43microsphereinFigure4c
Fig.S9SEM-MappingimagesofvariouselementsintheNi0.14Mn0.86O1.43microsphereinFigure4c
(b)
(c)
(a)
Fig.S10SEMimage(a)andXRDpattern(b)oftheNiO
Fig.S11SEMimages(a,b)andXRDpattern(c)oftheMn2O3microspheres.
Fig.S12SEMimage(a)andXRDpattern(b)oftheNiMn2O4.
Fig.S13RatecapabilityoftheporousNi0.14Mn0.86O1.43hollowmicrospheresatthe1st,50thand100thcycle.
Fig.S14CyclingperformanceoftheanodewithporousNi0.14Mn0.86O1.43hollowmicrospheresinthevoltagerangeof0.01-3.0Vvs.Li/Li+atacurrentdensityof50mAg-1
Fig.S15CyclingperformanceoftheanodewithporousNi0.14Mn0.86O1.43hollowmicrospheresinthevoltagerangeof0.01-3.0Vvs.Li/Li+atacurrentdensityof200mAg-1
Fig.S16CyclingperformanceoftheanodewithporousNi0.14Mn0.86O1.43hollowmicrospheresinthevoltagerangeof0.01-3.0Vvs.Li/Li+atacurrentdensityof800mAg-1
Fig.S17CyclingperformanceoftheanodewithporousNi0.14Mn0.86O1.43hollowmicrospheresinthevoltagerangeof0.01-3.0Vvs.Li/Li+atacurrentdensityof1000mAg-1
Fig.S18CyclingperformanceoftheanodewithporousNi0.14Mn0.86O1.43hollowmicrospheresinthevoltagerangeof0.01-3.0Vvs.Li/Li+atacurrentdensityof1200mAg-1
Fig.S19CyclingperformanceoftheanodewithporousNi0.14Mn0.86O1.43hollowmicrospheresinthevoltagerangeof0.01-3.0Vvs.Li/Li+atacurrentdensityof1600mAg-1
Fig.S20CyclingperformanceoftheanodewithNi0.14Mn0.86O1.5solidmicrospheresinthevoltagerangeof0.01-3.0Vvs.Li/Li+atacurrentdensityof800mAg-1
Fig.S21CyclingperformanceoftheanodewithNiMn2O4powdersinthevoltagerangeof0.01-3.0Vvs.Li/Li+atacurrentdensityof800mAg-1
Lithiumstoragemechanism:
TheconversionreactionsandthespecificcapacitiesofNiO,Mn2O3andNiMn2O4aswellastheNi0.14Mn0.86O1.43(0.29Mn2O3/0.14NiMn2O4)asstartinganodematerialofLIBsareasfollowing:
NiO:
Reversiblereaction:
Specificcapacity=715mAhg-1
Mn2O3:
Firstdischargereaction:
Specificcapacity=1019mAhg-1
Specificcapacity=679mAhg-1
NiMn2O4:
Specificcapacity=922mAhg-1
Specificcapacity=692mAhg-1
Ni0.14Mn0.86O1.43(0.29Mn2O3/0.14NiMn2O4):
Firstdischargecapacity:
Reversiblecapacity:
References:
[1]H.Deng,I.Belharouak,Y.-K.Sun,K.Amine,J.Mater.Chem.,19(2009)4510-4516.
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