Reduced Graphene Oxide (RGO) Hollow Network Cages for High-Performance Electrochemical Energy Storage

Authors

Chi Zhang, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China;
Xu-Jun He, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China;
Gao-Ren Li, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China;Follow

Corresponding Author

Gao-Ren Li(ligaoren@mail.sysu.edu.cn)

Abstract

The reduced graphese oxide (RGO) hollow network cages were synthesized via zinc oxide (ZnO) template-assisted electrodeposition. The as-prepared RGO hollow network cages exhibited the multi-level architectures, from nano sheets, porous structures, networks, to 3D microscaled hollow cages, which can simultaneously optimize transport of electroactive species, utilization rate of electrode material, and super capacitive performance. Electrochemical measurements confirmed the superior performance of RGO hollow network cages for supercapacitors (SCs), such as high Csp (393 F•g^-1 at 1.0 A•g^-11), excellent rate capability (21.2% Csp loss from 1.0 to 20 A•g^-1), and superior cycling stability (< 1% Csp loss after 10000 cycles).

Graphical Abstract

Keywords

reduced graphene oxide, porous structure, nanotube, supercapacitor

DOI Link

https://doi.org/10.13208/j.electrochem.151245

Publication Date

2016-06-28

Online Available Date

2016-05-31

Revised Date

2016-05-30

Received Date

2016-01-12

Recommended Citation

Chi Zhang, Xu-Jun He, Gao-Ren Li. Reduced Graphene Oxide (RGO) Hollow Network Cages for High-Performance Electrochemical Energy Storage[J]. Journal of Electrochemistry, 2016 , 22(3): 278-287.
DOI: 10.13208/j.electrochem.151245
Available at: https://jelectrochem.xmu.edu.cn/journal/vol22/iss3/7