Hierarchically porous graphene/wood-derived carbon activated with ZnCl2 and decorated with in situ grown NiCo2O4 for high‒performance asymmetric supercapacitors

2021 ◽  
Author(s):  
Mei-Jiao Zeng ◽  
Xiaofeng Li ◽  
Shumeng Hao ◽  
Jin Qu ◽  
Wei Li ◽  
...  
Keyword(s):  
High Performance ◽  
Asymmetric Supercapacitors ◽  
Environmental Friendliness ◽  
Hierarchically Porous ◽  
Porous Graphene ◽  
Porous Architecture ◽  
Electrodes For Supercapacitors

Although wood-derived carbon (WC) and its derivatives are promising electrodes for supercapacitors because of their hierarchically porous architecture, superior mechanical flexibility, and environmental friendliness, pure WC electrodes usually exhibit poor...

Rapid and low-cost laser synthesis of hierarchically porous graphene materials as high-performance electrodes for supercapacitors

2018 ◽  
Vol 54 (7) ◽  
pp. 5658-5670 ◽  
Author(s):  
Fangcheng Wang ◽  
Xuesong Mei ◽  
Kedian Wang ◽  
Xia Dong ◽  
Meng Gao ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Laser Synthesis ◽  
Hierarchically Porous ◽  
Porous Graphene ◽  
Electrodes For Supercapacitors

A highly conductive porous graphene electrode prepared via in situ reduction of graphene oxide using Cu nanoparticles for the fabrication of high performance supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54275-54282 ◽  
Author(s):  
Jizhen Zhang ◽  
Yuanhong Xu ◽  
Zhen Liu ◽  
Wenrong Yang ◽  
Jingquan Liu
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
In Situ Reduction ◽  
Cu Nanoparticles ◽  
Porous Graphene ◽  
Graphene Electrode ◽  
Cu Nanoparticle ◽  
Electrodes For Supercapacitors

A new graphene/Cu nanoparticle composite was prepared via the in situ reduction of GO in the presence of Cu nanoparticles which was then utilized as a sacrificing template for the formation of graphene electrodes for supercapacitors.

Vacancies-engineered MoO3 and Na+-preinserted MnO2 in-situ grown N-doped graphene nanotubes as electrode materials for high-performance asymmetric supercapacitor

2021 ◽  
Author(s):  
Jian Zhao ◽  
He Cheng ◽  
Huanyu Li ◽  
Yan-Jie Wang ◽  
Qingyan Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
High Energy ◽  
Cooperative Effect ◽  
Electrochemical Energy Storage ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Doped Graphene ◽  
Power Densities

Developing advanced negative and positive electrode materials for asymmetric supercapacitors (ASCs) as the electrochemical energy storage can enable the device to reach high energy/power densities resulting from the cooperative effect...

Fast lithium-ion storage of Nb2O5 nanocrystals in situ grown on carbon nanotubes for high-performance asymmetric supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 41179-41185 ◽  
Author(s):  
Xiaolei Wang ◽  
Ge Li ◽  
Ricky Tjandra ◽  
Xingye Fan ◽  
Xingcheng Xiao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Energy ◽  
Asymmetric Supercapacitors ◽  
Ion Storage ◽  
Energy And Power Density

Nanocomposites of Nb2O5 NCs in situ grown on CNTs are successfully developed with excellent rate capability, leading to the successful fabrication of asymmetric supercapacitors with high energy and power density and long-term cycling stability.

scholarly journals In situ construction of yolk–shell zinc cobaltite with uniform carbon doping for high performance asymmetric supercapacitors

2018 ◽  
Vol 6 (19) ◽  
pp. 9109-9115 ◽  
Author(s):  
Xiaoya Chang ◽  
Lei Zang ◽  
Song Liu ◽  
Mengying Wang ◽  
Huinan Guo ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
High Energy ◽  
Carbon Doping ◽  
High Energy Density ◽  
Asymmetric Supercapacitors

Yolk–shell ZnCo2O4 with in situ formed carbon shows great potential for supercapacitors, which delivers high energy density and power density.

In situ formation of a renewable cellulose hydrogel electrolyte for high-performance flexible all-solid-state asymmetric supercapacitors

2019 ◽  
Vol 3 (11) ◽  
pp. 3109-3115 ◽  
Author(s):  
Hongfei Wang ◽  
Juan Wu ◽  
Jun Qiu ◽  
Kefu Zhang ◽  
Jingwen Shao ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Asymmetric Supercapacitors ◽  
Cellulose Hydrogel ◽  
In Situ Formation

Renewable cellulose hydrogels have been fabricated as the electrolyte for high-performance flexible all-solid-state asymmetric supercapacitors.

In situencapsulated Fe3O4nanosheet arrays with graphene layers as an anode for high-performance asymmetric supercapacitors

2017 ◽  
Vol 5 (47) ◽  
pp. 24594-24601 ◽  
Author(s):  
Jinghuang Lin ◽  
Haoyan Liang ◽  
Henan Jia ◽  
Shulin Chen ◽  
Jiale Guo ◽  
...  
Keyword(s):  
Anode Material ◽  
High Performance ◽  
Asymmetric Supercapacitors ◽  
Graphene Layers ◽  
Nanosheet Arrays

To achieve high-performance asymmetric supercapacitors, we designed and synthesized a new anode material of Fe3O4nanosheet arrays, which were encapsulatedin situby graphene layers (G@Fe3O4).

Embedding SiO2into graphene oxide in situ to generate 3D hierarchical porous graphene laminates for high performance lithium–sulfur batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (98) ◽  
pp. 80353-80356 ◽  
Author(s):  
Wangliang Wu ◽  
Chunying Wan ◽  
Chuxin Wu ◽  
Lunhui Guan
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
High Performance ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Functionalized Graphene Oxide ◽  
Porous Graphene ◽  
Hierarchical Porous ◽  
Lithium Sulfur Batteries

3D hierarchical porous graphene laminates through self-assembly of functionalized graphene oxide embedded with SiO2in situas a carbon host material for sulfur cathode, exhibits high reversible capacity, stable cycling performance as well as excellent rate capabilities.

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