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典型文献
Structure and surface modification of MXene for efficient Li/K-ion storage
文献摘要:
In this paper,three-dimensional(3D)hollow Ti3C2Tx MXene tubes(HTCTs)with more-O terminal groups and fewer-F groups are successfully prepared via the template-oriented electrostatic self-assembly and the subsequent annealing treatment.The obtained 3D hollow structure with large specific surface area,unique porous structure,and enlarged interlayer spacing could prevent the re-stacking of two-dimensional(2D)sheets and shorten the diffusion pathway of ions.Furthermore,density functional the-ory(DFT)calculations and electrochemical tests reveal that Ti3C2O2 MXene possesses higher adsorption ability and lower diffusion barrier for K+and Li+compared to Ti3C2 MXene dominated by-F terminal groups.Benefiting from the synergistic effect of the structural design and surface modification,the as-prepared 3D HTCTs exhibit excellent electrochemical performance as anodes for K+and Li+storage com-pared with 2D Ti3C2Tv sheets(TCSs).
文献关键词:
作者姓名:
Keke Guan;Long Dong;Yingying Xing;Xuke Li;Jin Luo;Quanli Jia;Haijun Zhang;Shaowei Zhang;Wen Lei
作者机构:
The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Henan Key Laboratory of High Temperature Functional Ceramics,Zhengzhou University,Zhengzhou 450052,Henan,China;College of Engineering,Mathematics and Physical Sciences,University of Exeter,Exeter Ex4 4QF,United Kingdom
文献出处:
引用格式:
[1]Keke Guan;Long Dong;Yingying Xing;Xuke Li;Jin Luo;Quanli Jia;Haijun Zhang;Shaowei Zhang;Wen Lei-.Structure and surface modification of MXene for efficient Li/K-ion storage)[J].能源化学,2022(12):330-339
A类:
HTCTs,Ti3C2O2,Li+compared,Li+storage,Ti3C2Tv
B类:
Structure,surface,modification,MXene,efficient,In,this,paper,three,dimensional,hollow,Ti3C2Tx,tubes,terminal,groups,fewer,successfully,prepared,via,template,oriented,electrostatic,self,assembly,subsequent,annealing,treatment,obtained,structure,specific,area,unique,porous,enlarged,interlayer,spacing,could,prevent,stacking,two,2D,sheets,shorten,diffusion,pathway,Furthermore,density,functional,ory,DFT,calculations,electrochemical,tests,reveal,that,possesses,higher,adsorption,ability,lower,barrier,K+and,dominated,by,Benefiting,from,synergistic,effect,structural,design,exhibit,excellent,performance,anodes,TCSs
AB值:
0.572991
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