scholarly journals High performance asymmetric supercapacitors with ultrahigh energy density based on hierarchical carbon nanotubes@NiO core–shell nanosheets and defect-introduced graphene sheets with hole structure

RSC Advances ◽  
2017 ◽  
Vol 7 (13) ◽  
pp. 7843-7856 ◽  
Author(s):  
Zenghui Qiu ◽  
Dawei He ◽  
Yongsheng Wang ◽  
Xuan Zhao ◽  
Wen Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Density ◽  
High Performance ◽  
Cost Effective ◽  
Graphene Sheets ◽  
Core Shell ◽  
Ultrahigh Energy ◽  
Asymmetric Supercapacitors ◽  
Hierarchical Carbon ◽  
Hole Structure

In this work, we report a fast and cost-effective cobalt catalyzed gasification strategy to obtain defect-introduced graphene sheets (DGNs) with hole structure.

Construction of a hierarchical carbon coated Fe3O4 nanorod anode for 2.6 V aqueous asymmetric supercapacitors with ultrahigh energy density

2019 ◽  
Vol 7 (48) ◽  
pp. 27313-27322 ◽  
Author(s):  
Zhongyou Peng ◽  
Jun Huang ◽  
Ying Wang ◽  
Kai Yuan ◽  
Licheng Tan ◽  
...  
Keyword(s):  
Energy Density ◽  
Cycle Performance ◽  
Ultrahigh Energy ◽  
Asymmetric Supercapacitors ◽  
Carbon Coated ◽  
Hierarchical Carbon

An assembled 2.6 V aqueous CC/CW/Fe3O4@C//CC/CW/MnO2 ASC exhibits ultrahigh energy density and remarkable cycle performance, surpassing most of the reported ASCs.

Hierarchical core–shell structures of P-Ni(OH)2 rods@MnO2 nanosheets as high-performance cathode materials for asymmetric supercapacitors

Nanoscale ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 2524-2532 ◽  
Author(s):  
Kunzhen Li ◽  
Shikuo Li ◽  
Fangzhi Huang ◽  
Xin-yao Yu ◽  
Yan Lu ◽  
...  
Keyword(s):  
Energy Density ◽  
High Power ◽  
High Performance ◽  
Shell Structures ◽  
Core Shell ◽  
Ni Foam ◽  
Asymmetric Supercapacitors ◽  
Mno2 Nanosheets ◽  
Binder Free ◽  
Power And Energy

The unique P-Ni(OH)2@MnO2 core–shell nanoarrays heterostructure grown on Ni foam were designed and synthesized as a binder-free electrode, high power and energy density asymmetrical supercapacitors were achieved.

Hierarchical CoP@Ni2P core–shell nanosheets for ultrahigh energy density asymmetric supercapacitors

2020 ◽  
Vol 7 (16) ◽  
pp. 3030-3038
Author(s):  
Liang Jiang ◽  
Ming Yan ◽  
Lin Sun ◽  
Yu Liu ◽  
Hongye Bai ◽  
...  
Keyword(s):  
Energy Density ◽  
Carbon Paper ◽  
Core Shell ◽  
Ultrahigh Energy ◽  
Asymmetric Supercapacitors ◽  
Electrochemical Capacitance

A Ni2P nanosheet-modified ZIF-67-derived hierarchical CoP electrode was successfully fabricated on carbon paper with high electrochemical capacitance.

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