Facile synthesis of a metal–organic framework-derived Mn2O3 nanowire coated three-dimensional graphene network for high-performance free-standing supercapacitor electrodes

2016 ◽  
Vol 4 (21) ◽  
pp. 8283-8290 ◽  
Author(s):  
Dong Ji ◽  
Hu Zhou ◽  
Jian Zhang ◽  
Yuanyuan Dan ◽  
Hongxun Yang ◽  
...  

3DGN and MOF-derived metal oxide composites as free-standing electrodes for supercapacitors have been reported for the first time which exhibit a high specific capacitance, good rate capability and excellent long cycle stability.

2022 ◽  
Author(s):  
Chong-Huan Wang ◽  
Da-Wei Zhang ◽  
Shude Liu ◽  
Yusuke Yamauchi ◽  
Fei-Bao Zhang ◽  
...  

Herein, we propose a solvent-assisted approach for preparing Ni-MOF microflowers with high specific capacitance and excellent rate capability as an electrode material for supercapacitors. Such high electrochemical performance is attributed...


NANO ◽  
2020 ◽  
Vol 15 (05) ◽  
pp. 2050062
Author(s):  
Zhaolei Meng ◽  
Xiaojian He ◽  
Song Han ◽  
Zijian Hu

Carbon materials are generally employed as supercapacitor electrodes due to their low- cost, high-chemical stability and environmental friendliness. However, the design of carbon structures with large surface area and controllable porous structure remains a daunt challenge. In this work, a three-dimensional (3D) hybrid aerogel with different contents of MoS2 nanosheets in 3D graphene aerogel (MoS2-GA) was synthesized through a facial hydrothermal process. The influences of MoS2 content on microstructure and subsequently on electrochemical properties of MoS2-GA are systematically investigated and an optimized mass ratio with MoS2: GA of 1:2 is chosen to achieve high mechanical robustness and outstanding electrochemical performance in the hybrid structure. Due to the large specific surface area, porous structure and continuous charge transfer network, such MoS2-GA electrodes exhibit high specific capacitance, good rate capability and excellent cyclic stability, showing great potential in large-scale and low-cost fabrication of high-performance supercapacitors.


2020 ◽  
Vol 7 (8) ◽  
pp. 1685-1690 ◽  
Author(s):  
Yuan-Yuan Peng ◽  
Si-Guo Wu ◽  
Yan-Cong Chen ◽  
Wei Liu ◽  
Guo-Zhang Huang ◽  
...  

An unprecedented hysteretic seven-/eight-step spin-crossover behavior is revealed. Most importantly, a molecular alloy based on a Hofmann-type framework is used as a strategy to explore multi-step spin-crossover materials for the first time.


2014 ◽  
Vol 2 (46) ◽  
pp. 19678-19684 ◽  
Author(s):  
Ding Nan ◽  
Zheng-Hong Huang ◽  
Ruitao Lv ◽  
Lu Yang ◽  
Jian-Gan Wang ◽  
...  

Nitrogen-enriched electrospun carbon nanofiber networks were prepared to use as a free-standing LIB anode material with ultrahigh capacity and good rate capability.


2017 ◽  
Vol 41 (21) ◽  
pp. 12835-12842 ◽  
Author(s):  
Lijun Xin ◽  
Rongrong Chen ◽  
Qi Liu ◽  
Jingyuan Liu ◽  
Zhanshuang Li ◽  
...  

Nitrogen-doped porous carbon prepared via facile carbonization which displays high specific capacitance, is an excellent potential material for supercapacitors.


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