Designed synthesis of nickel–cobalt-based electrode materials for high-performance solid-state hybrid supercapacitors

Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 1921-1938 ◽  
Author(s):  
Liu Yang ◽  
Xintong Lu ◽  
Shihao Wang ◽  
Jiansen Wang ◽  
Xiaohui Guan ◽  
...  

Schematic descriptions for the formation of CoNi2S4, NiCo-LDH, and NiO/Co3O4 and the excellent electrochemical performance of CoNi2S4.

Author(s):  
fuyong Ren ◽  
Yajun Ji ◽  
Fei Chen ◽  
Yiyi Qian ◽  
Jingjing Tian ◽  
...  

The design and fabrication of electrode materials with excellent electrochemical performance are the key measures to improve the energy density of device. Since cobalt based materials have excellent conductivity and...


2019 ◽  
Vol 6 (7) ◽  
pp. 1851-1860 ◽  
Author(s):  
Chengzhen Wei ◽  
Qingyun Chen ◽  
Cheng Cheng ◽  
Ran Liu ◽  
Qiang Zhang ◽  
...  

Mesoporous Ni–Co–Mn sulfide yolk–shell hollow spheres have been prepared via a self-template route and show excellent electrochemical performance in supercapacitors.


2018 ◽  
Vol 47 (8) ◽  
pp. 2711-2718 ◽  
Author(s):  
Zhaohui Meng ◽  
Song Wang ◽  
Lijuan Wang ◽  
Hongjiang Hou

LZTO@C–N with an excellent electrochemical performance has been synthesized using NTA as C and N sources, as well as a chelating agent.


RSC Advances ◽  
2015 ◽  
Vol 5 (72) ◽  
pp. 58777-58783 ◽  
Author(s):  
Xiaoqing Cai ◽  
Xiaoping Shen ◽  
Lianbo Ma ◽  
Zhenyuan Ji ◽  
Lirong kong

A facile one-pot refluxing method was developed to prepare nickel–cobalt sulfide/reduced graphene oxide (RGO) hybrids. The as-synthesized NiCo2S4/RGO hybrids as electrode materials for supercapacitors exhibit excellent electrochemical performance.


RSC Advances ◽  
2015 ◽  
Vol 5 (121) ◽  
pp. 100106-100113 ◽  
Author(s):  
Yang Wang ◽  
Lidong Wang ◽  
Bing Wei ◽  
Qinghua Miao ◽  
Yinan Yuan ◽  
...  

With the synergistic effect of 3D RGO and Ni–Co–S nanosheets, a Ni–Co–S/RGO/NF electrode exhibits excellent electrochemical performance.


2020 ◽  
Vol 15 (12) ◽  
pp. 1429-1435
Author(s):  
Yan Zhao ◽  
Yucai Li ◽  
Dong Zhang ◽  
Shiwei Song ◽  
Jian Wang ◽  
...  

Electrochemical performance of the material depends on the morphology and structural characteristics of the material. Co3O4 samples shows the remarkable electrochemical performance owing to the high porosity, appropriate pore size distribution and novel architecture and reaction time effect of morphology. In this work, Co3O4 nanowires grown on Ni foam have been synthesized through a facile hydrothermal approach, revealing large capacitance of 2178.4 mF cm-2 at the current density of 2 mA cm-2 and cycling stability with 79.6% capacitance retention after 6000 cycles. The as-assembled device delivers excellent electrochemical performance for high specific capacitance of 356 mF cm-2 at the current density of 2 mA cm-2 and high cycle stability.


2014 ◽  
Vol 2 (28) ◽  
pp. 10895-10903 ◽  
Author(s):  
Hong-Fei Ju ◽  
Wei-Li Song ◽  
Li-Zhen Fan

Graphene/porous carbon aerogels were rationally designed by a simple green process, exhibiting excellent electrochemical performance and long-term cycle stability as the electrode materials in flexible all-solid-state supercapacitors.


RSC Advances ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 1038-1044 ◽  
Author(s):  
Yansong Gai ◽  
Yuanyuan Shang ◽  
Liangyu Gong ◽  
Linghao Su ◽  
Long Hao ◽  
...  

Porous ZnCo2O4 microspheres with excellent electrochemical performance were prepared via a facial self-template solvothermal method for application in supercapacitors.


RSC Advances ◽  
2019 ◽  
Vol 9 (36) ◽  
pp. 20618-20623 ◽  
Author(s):  
Zhaohui Meng ◽  
Suhong Wang ◽  
Hongwei Wang ◽  
Lijuan Wang ◽  
Song Wang

LZTO@C@La2O3 coated with composite protective layers with excellent electrochemical performance has been synthesized using a simple solid-state method.


2020 ◽  
Vol 467 ◽  
pp. 228324 ◽  
Author(s):  
Shixue He ◽  
Zhiwei Li ◽  
Hongyu Mi ◽  
Chenchen Ji ◽  
Fengjiao Guo ◽  
...  

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