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

页码：8 / 13

页数：6