典型文献
Fabrication of MOF-derived mixed metal oxides with carbon residues for pseudocapacitors with long cycle life
文献摘要：
High electroactivity and good mechanical robustness of electrode materials are essential to deliver excellent elec-trochemical energy storage performance.Herein,metal-organic frameworks(MOF)derived mixed metal oxides(MMO,ZnO@NiO and Co3O4@NiO)are prepared by a two-step annealing process in air.Zinc-based MOF(ZIF-8)and cobalt-based MOF(ZIF-67)were employed,respec-tively,as hard templates for the chemical encapsulation of Ni(OH)2 nanostructures by hydrothermal synthesis.The as-prepared ZIF-8@Ni(OH)2 and ZIF-67@Ni(OH)2 were then converted to corresponding MMO through annealing in air.Meanwhile,MOF-derived carbon was preserved in the as-fabricated MMO structure,thus improving the electronic conductivity as well as the mechanical stability of the materials.In virtue of these features,high specific capaci-tance of 1017 and 744 F·g-1 can be delivered at a current density of 1 A.g-1 for the Co3O4@NiO and ZnO@NiO samples,respectively.In addition,both of the samples have shown excellent cycling performance,which exhibited excellent capacitance retentions of 90.1％and 93.0％after 10,000 cycles for the Co3O4@NiO and ZnO@NiO sam-ples,respectively,demonstrating their very promising use in next-generation pseudocapacitors.
文献关键词：
中图分类号：
作者姓名：
Yuan-Fu Ren;Zhi-Liang He;Hao-Zhen Zhao;Ting Zhu
作者机构：
School of Materials Science and Engineering,Central South University,Changsha 410083,China
文献出处：
引用格式：
[1]Yuan-Fu Ren;Zhi-Liang He;Hao-Zhen Zhao;Ting Zhu-.Fabrication of MOF-derived mixed metal oxides with carbon residues for pseudocapacitors with long cycle life)[J].稀有金属（英文版）,2022(03):830-835
A类：
B类：
Fabrication,MOF,derived,mixed,metal,oxides,carbon,residues,pseudocapacitors,long,life,High,electroactivity,good,mechanical,robustness,electrode,materials,essential,excellent,trochemical,energy,storage,performance,Herein,organic,frameworks,MMO,ZnO,NiO,Co3O4,prepared,by,two,step,annealing,process,air,Zinc,ZIF,cobalt,were,employed,hard,templates,encapsulation,nanostructures,hydrothermal,synthesis,then,converted,corresponding,through,Meanwhile,was,preserved,fabricated,thus,improving,electronic,conductivity,well,stability,In,virtue,these,features,high,specific,can,be,delivered,current,density,samples,respectively,addition,both,have,shown,cycling,which,exhibited,capacitance,retentions,after,cycles,demonstrating,their,very,promising,use,next,generation
AB值：
0.539622
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