N-doping carbon sheet and core–shell mesoporous carbon sphere composite for high-performance supercapacitor

2019 ◽  
Vol 76 ◽  
pp. 450-456 ◽  
Author(s):  
Juan Du ◽  
Lei Liu ◽  
Yifeng Yu ◽  
Yue Zhang ◽  
Aibing Chen
2020 ◽  
Vol 7 (2) ◽  
pp. 411-420
Author(s):  
Xue Bai ◽  
Dianxue Cao ◽  
Hongyu Zhang

Combining interfacial methods and mesoporous carbon channels, an asymmetric device, using N,S-codoped mesoporous carbon and a MnO2@MC-30 core shell composite, is assembled with high energy, power densities and outstanding cycling stability.


2016 ◽  
Vol 21 (4) ◽  
pp. 1101-1109 ◽  
Author(s):  
Xueliang Li ◽  
Yiyi Wang ◽  
Congsheng Xu ◽  
Lisheng Pan

2018 ◽  
Vol 290 ◽  
pp. 185-192 ◽  
Author(s):  
Wei Luo ◽  
Xiang Ao ◽  
Zhishan Li ◽  
Lin Lv ◽  
Jiangang Li ◽  
...  

2020 ◽  
pp. 174751982093989
Author(s):  
Xiaolin Hu ◽  
Lei Liu ◽  
Yue Zhang ◽  
Aibing Chen

Carbon-based materials with multidimensional structures generally exhibit improved properties compared with single-morphology carbon materials for various applications including catalysis, adsorption, and energy storage. Here, an N-doped mesoporous carbon sphere and sheet composite is prepared by a co-assembly strategy using an ionic liquid ([C18Mim]Br) as the structure-directing agent, ethylenediamine as the catalyst, tetraethyl orthosilicate as the pore-forming agent, and resorcinol formaldehyde resin as the carbon precursor. [C18Mim]Br and ethylenediamine not only induce formation of the unique structure but also lead to in situ nitrogen doping on the N-doped mesoporous carbon skeleton. The obtained N-doped mesoporous carbon shows a unique composite structure of thin sheets embedded with carbon spheres, having high a specific surface area and uniform mesopore distribution. When used as an electrode material, the N-doped mesoporous carbon shows a good specific capacity of 273 F g−1 at a current density of 0.5 A g−1 and a good rate capability (82.1% of the capacitance is retained at a high current density of 10 A g−1). Moreover, the N-doped mesoporous carbon exhibited ideal stability behavior (91.6% capacitive retention after 10,000 cycles), indicating a promising role as an electrode material for excellent performance supercapacitors.


2020 ◽  
Author(s):  
Velu Duraisamy ◽  
Sudha Velayutham ◽  
Annadurai Kuppusamy ◽  
Senthil Kumar Murugesan S M ◽  
R. Thangamuthu

The development of active and defective sites containing mesoporous carbon material is highly crucial for high-performance sensors. In this work, N-doped hollow carbon sphere (NHCS) materials with high surface area...


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