Three dimensional Mn3O4-CeO2/holey-graphene hierarchical architectures from stem for high-performance asymmetric supercapacitors

被引：29
|
作者：
Qian, Junchao [1 ]
Wang, Yaping [1 ]
Chen, Zhigang [1 ]
Liu, Chengbao [1 ]
Zhou, Yuyang [1 ]
Yang, Yue [2 ]
Song, Yenan [3 ]
Kong, Biao [1 ]
机构：
[1] Suzhou Univ Sci & Technol, Jiangsu Key Lab Environm Funct Mat, Suzhou 215009, Peoples R China
[2] East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China
[3] East China Normal Univ, Sch Phys & Mat Sci, Engn Res Ctr Nanophoton & Adv Instrument, Minist Educ, Shanghai 200062, Peoples R China
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2019年 / 104卷
基金：
中国国家自然科学基金;
关键词：
Supercapacitor; Mn3O4-CeO2; Holey-graphene; Biotemplate; Energy storage; NANOMATERIALS; ELECTRODES; CARBON;
D O I：
10.1016/j.inoche.2019.03.032
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Mn3O4-CeO2/holey-graphene nano-composite was fabricated by hydrothermal reaction on the honeycomb-like porous graphene structure. The hybrid materials displayed enhanced capacitive performance (310 F.g(-1) at 2 A.g(-1)). After 1000 cycles, the initial capacitance of the composite still has 92.4% retained. The improved electrochemical performance might be ascribed to the intimate combination of the pesudocapacitance from nanoparticles well-dispersed on graphene sheets and double layer capacitance from excellent conductive graphene scaffold. The investigation presents a promising application of nanoparticles/graphene composites as electrode materials for energy storage.
引用
收藏
页码：8 / 13
页数：6
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