典型文献
High mass loading NiCo2O4 with shell-nanosheet/core-nanocage hierarchical structure for high-rate solid-state hybrid supercapacitors
文献摘要：
Rational design of advanced structure for transition metal oxides(TMOs)is attractive for achieving high-performance supercapacitors.However,it is hampered by sluggish reaction kinetics,low mass loading,and volume change upon cycling.Herein,hierarchical NiCo2O4 ar-chitectures with 2D-nanosheets-shell and 3D-nanocages-core(2D/3D h-NCO)are directly assembled on nickel foam via a facile one-step way.The 2D nanosheets are in-situ generated from the self-evolution of initial NCO nanospheres.This 2D/3D hierarchical structures ensure fast ion/electron transport and maintain the structural integrity to buffer the volume expansion.The 2D/3D h-NCO electrode with an ultrahigh mass loading(30 mg cm-2)achieves a high areal capacity of 4.65 C cm-2(equivalent to 1.29 mAh cm-2)at a current density of 4 mA cm-2,and retains 3.7 C cm-2 even at 50 mA cm-2.Furthermore,the assembled solid-state hybrid supercapacitor yields a high volumetric energy density of 4.25 mWh cm-3 at a power density of 39.3 mW cm-3,with a high capacity retention of 92.4％after 5000 cycles.Therefore,this work provides a new insight to constuct hierarchical electrodes for energy storage application.
文献关键词：
中图分类号：
作者姓名：
Wang Yang;Liqiang Hou;Peng Wang;Yun Li;Rui Li;Bo Jiang;Fan Yang;Yongfeng Li
作者机构：
State Key Laboratory of Heavy Oil Processing,China University of Petroleum(Beijing),Changping,102249,China
文献出处：
引用格式：
[1]Wang Yang;Liqiang Hou;Peng Wang;Yun Li;Rui Li;Bo Jiang;Fan Yang;Yongfeng Li-.High mass loading NiCo2O4 with shell-nanosheet/core-nanocage hierarchical structure for high-rate solid-state hybrid supercapacitors)[J].绿色能源与环境（英文）,2022(04):723-733
A类：
chitectures,constuct
B类：
High,mass,loading,NiCo2O4,shell,core,hierarchical,solid,state,hybrid,supercapacitors,Rational,design,advanced,transition,metal,oxides,TMOs,attractive,achieving,performance,However,hampered,by,sluggish,reaction,kinetics,low,change,upon,cycling,Herein,2D,nanosheets,nanocages,NCO,directly,assembled,nickel,foam,via,facile,one,step,way,situ,generated,from,self,evolution,initial,nanospheres,This,structures,ensure,fast,electron,transport,maintain,structural,integrity,buffer,expansion,ultrahigh,achieves,areal,capacity,equivalent,mAh,current,density,retains,even,Furthermore,yields,volumetric,energy,mWh,power,retention,after,cycles,Therefore,this,work,provides,new,insight,electrodes,storage,application
AB值：
0.566536
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