典型文献
Three-dimensional Au/carbon nanotube-graphene foam hybrid nanostructure for dendrite free sodium metal anode with long cycle stability
文献摘要:
Sodium metal anode has been attracting widely research attention due to its large capacity and low electrode potential as the anode of sodium-ion batteries.However,the uncontrollable growth of Na den-drite is one of the critical issues for its real applications.Herein,a three-dimensional(3D)nanostructure composed of gold nanoparticles(Au NPs)supported on 3D carbon nanotube-graphene foam(3D CNT-GF)was designed and fabricated as the host of sodium metal anode.Na@3D Au/CNT-GF anode can deliver a Coulombic efficiency of 99.14%and stably cycle for 2600 h at 1 mA cm-2 with 1 mAh cm-2.It can cycle for 300 h at 5 mA cm-2 with 1 mAh cm-2.Detailed results indicate that its excellent electrochemical per-formance can be attributed to the unique macroporous structure and sodiophilic surface formed by Au NPs guiding the uniform sodium metal deposition enabled a dendrite-free morphology investigated by the ex-situ SEM and in-situ optical microscopy.At last,a full cell was assembled with Na@3D Au/CNT-GF as the anode and Na3V2(PO4)3@C as the cathode.It can deliver a capacity of 84.6 mAh g-1 at 100 mA g-1 after 200 cycles.Our results demonstrate that 3D Au/CNT-GF is a promising sodium metal anode host.
文献关键词:
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作者姓名:
Zhenxin Huang;Zixuan Wang;Bofang Tian;Tingting Xu;Caiyun Ma;Zhuangfei Zhang;Jinhao Zang;Dezhi Kong;Xinjian Li;Ye Wang
作者机构:
Key Laboratory of Material Physics,Ministry of Education,School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450052,China
文献出处:
引用格式:
[1]Zhenxin Huang;Zixuan Wang;Bofang Tian;Tingting Xu;Caiyun Ma;Zhuangfei Zhang;Jinhao Zang;Dezhi Kong;Xinjian Li;Ye Wang-.Three-dimensional Au/carbon nanotube-graphene foam hybrid nanostructure for dendrite free sodium metal anode with long cycle stability)[J].材料科学技术(英文版),2022(23):199-207
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Three,dimensional,Au,carbon,nanotube,graphene,foam,hybrid,nanostructure,dendrite,free,sodium,metal,anode,long,stability,Sodium,has,been,attracting,widely,research,attention,due,its,large,capacity,low,electrode,potential,batteries,However,uncontrollable,growth,one,critical,issues,real,applications,Herein,three,composed,gold,nanoparticles,NPs,supported,CNT,GF,was,designed,fabricated,host,can,deliver,Coulombic,efficiency,stably,mAh,It,Detailed,results,indicate,that,excellent,electrochemical,per,formance,attributed,unique,macroporous,sodiophilic,surface,formed,by,guiding,uniform,deposition,enabled,morphology,investigated,situ,optical,microscopy,At,last,full,assembled,Na3V2,PO4,cathode,after,cycles,Our,demonstrate,promising
AB值:
0.516985
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