典型文献
MXene-wrapped ZnCo2S4 core-shell nanospheres via electrostatic self-assembly as positive electrode materials for asymmetric supercapacitors
文献摘要：
Constructing electrode materials with large capacity and good conductivity is an effective approach to improve the capacitor performance of asymmetric super-capacitors(ASCs).In this paper,ZnCo2S4 core-shell nanospheres are constructed by two-step hydrothermal method.In order to improve the chemical activity of ZnCo2S4,ZnCo2S4 is activated using cetyltrimethylam-monium bromide(CTAB).Then,MXene nanosheets are fixed on the surface of ZnCo2S4 by electrostatic self-assembly method to improve the specific surface area of ZnCo2S4 and MXene-wrapped ZnCo2S4 composite is pre-pared in this work.Owing to the synergy effect between MXene nanosheets and ZnCo2S4 core-shell nanospheres,the as-prepared composite displays fast ion transfer rate and charge/discharge process.The capacity of the MXene-wrapped ZnCo2S4 composite can reach 1072 F·g-1,which is far larger than that of ZnCo2S4(407 F·g-1)at 1 A·g-1.An ASC device is assembled,which delivers 1.7 V potential window and superior cyclic stability(95.41％capacitance retention).Furthermore,energy density of this device is up to 30.46 Wh·kg-1 at a power density of 850 W·kg-1.The above results demonstrate that MXene-wrapped ZnCo2S4 composite has great application pro-spects in electrochemical energy storage field.
文献关键词：
中图分类号：
作者姓名：
Ji-Qiu Qi;Chen-Chen Zhang;Hao Liu;Lei Zhu;Yan-Wei Sui;Xiu-Juan Feng;Wen-Qing Wei;Hao Zhang;Peng Cao
作者机构：
Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipments,School of Materials Science and Physics,China University of Mining and Technology,Xuzhou 221116,China;The School of Mines,China University of Mining and Technology,Xuzhou 221116,China;School of Mechanical-Electronic and Vehicle Engineering,Weifang University,Weifang 261061,China;Ningbo Institute of Materials Technology&Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Department of Chemical&Materials Engineering,University of Auckland,Auckland 1142,New Zealand
文献出处：
引用格式：
[1]Ji-Qiu Qi;Chen-Chen Zhang;Hao Liu;Lei Zhu;Yan-Wei Sui;Xiu-Juan Feng;Wen-Qing Wei;Hao Zhang;Peng Cao-.MXene-wrapped ZnCo2S4 core-shell nanospheres via electrostatic self-assembly as positive electrode materials for asymmetric supercapacitors)[J].稀有金属（英文版）,2022(08):2633-2644
A类：
ZnCo2S4,cetyltrimethylam
B类：
MXene,wrapped,core,shell,nanospheres,via,electrostatic,self,assembly,positive,electrode,materials,asymmetric,supercapacitors,Constructing,capacity,good,conductivity,effective,approach,improve,performance,ASCs,In,this,paper,constructed,by,two,step,hydrothermal,method,order,activity,activated,using,monium,bromide,CTAB,Then,nanosheets,fixed,surface,specific,area,composite,work,Owing,synergy,between,prepared,displays,fast,transfer,discharge,process,can,reach,which,far,larger,than,that,An,device,assembled,delivers,potential,window,superior,cyclic,stability,capacitance,retention,Furthermore,energy,density,Wh,power,above,results,demonstrate,has,great,application,spects,electrochemical,storage,field
AB值：
0.464605
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