机械球磨法制备Sn_4P_3/RGO钠离子电池负极材料及其电化学性能研究
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摘要
以红磷、锡粉和还原氧化石墨烯作为主要反应物,利用机械球磨法成功合成磷化锡/还原氧化石墨烯(Sn_4P_3/RGO)复合材料,并用作钠离子电池的负极材料.采用X射线粉末衍射仪(XRD)、扫描电子显微镜(SEM)、蓝电测试系统和电化学工作站对所获得的样品粉末进行物相、微观形貌以及电化学性能表征.与纯相Sn_4P_3相比, Sn_4P_3/RGO复合材料作为钠离子电池负极材料展示出较为优异的电化学性能.
Tin phosphide/reduced graphene oxide(Sn_4P_3/RGO) composites were successfully synthesized by mechanical ball milling with red phosphorus, tin powder and reduced graphene oxide as main reactants and used as anode materials for sodium ion batteries. The phase, morphology and electrochemical properties of the obtained sample powders were characterized by X-ray powder diffractometry(XRD), scanning electron microscopy(SEM), LAND CT2001 A systems, and electrochemical workstation. Compared with the pure phase Sn_4P_3, the Sn_4P_3/RGO composite exhibits an excellent electrochemical performance as anode material for sodium ion batteries.
Tin phosphide/reduced graphene oxide(Sn_4P_3/RGO) composites were successfully synthesized by mechanical ball milling with red phosphorus, tin powder and reduced graphene oxide as main reactants and used as anode materials for sodium ion batteries. The phase, morphology and electrochemical properties of the obtained sample powders were characterized by X-ray powder diffractometry(XRD), scanning electron microscopy(SEM), LAND CT2001 A systems, and electrochemical workstation. Compared with the pure phase Sn_4P_3, the Sn_4P_3/RGO composite exhibits an excellent electrochemical performance as anode material for sodium ion batteries.
引文
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[9]TANG K,FU L,WHITE R J,et al.Hollow carbon nanospheres with superior rate capability for sodium-based batteries[J].Advanced Energy Materials,2012,2(7):873-877.
[10]CAO Y,XIAO L,SUSHKO M L,et al.Sodium ion insertion in hollow carbon nanowires for battery applications[J].Nano Letters,2012,12(7):3783-3787.
[11]SHOAIB A,HUANG Y,LIU J,et al.Ultrathin single-crystalline Ti O2 nanosheets anchored on graphene to be hybrid network for high-rate and long cycle-life sodium battery electrode application[J].Journal of Power Sources,2017,342:405-413.
[12]CAO Y,XIAO L,WANG W,et al.Chem Inform Abstract:Reversible sodium ion insertion in single crystalline manganese oxide nanowires with long cycle life[J].Advanced Materials,2011,23(28):3155-3160.
[13]LI W J,YANG Q R,CHOU S L,et al.Cobalt phosphide as a new anode material for sodium storage[J].Journal of Power Sources,2015,294:627-632.
[14]FULLENWARTH J,DARWICHE A,SOARES A,et al.Ni P3:a promising negative electrode for Li-and Na-ion batteries[J].Journal of Materials Chemistry A,2014,2(7):2050-2059.
[15]KIM Y,PARK Y,CHOI A,et al.An amorphous red phosphorus/carbon composite as a promising anode material for sodium ion batteries[J].Advanced Materials,2013,25(22):3010-3010.
[16]LI W,CHOU S L,WANG J Z,et al.Sn4+xP3@amorphous Sn-P composites as anodes for sodium-ion batteries with low cost,high capacity,long life,and superior rate capability[J].Advanced Materials,2014,26(24):4037-4042.
[17]KOVNIR K A,KOLEN’KO Y V,RAY S.A facile high-yield solvothermal route to tin phosphide Sn4P3[J].Journal of Solid State Chemistry,2007,179(12):3756-3762.
[18]KIM Y U,LEE C K,SOHN H J,et al.Reaction mechanism of tin phosphide anode by mechanochemical method for lithium secondary batteries[J].Journal of the Electrochemical Society,2004,151(6):A933-A937.
[19]WU J J,FU Z W.Pulsed-laser-deposited Sn4P3 electrodes for lithium-ion batteries[J].Electrochemical Society,2009,156:A22-A26.
[20]MA L,YAN P,WU S,et al.Engineering tin phosphides@carbon yolk-shell nanocube structures as a highly stable anode material for sodium-ion batteries[J].Journal of Materials Chemistry A,2017,5(32):16994-17000.