Hierarchical porous nitrogen doping activated carbon with high performance for supercapacitor electrodes

RSC Advances ◽  
2016 ◽  
Vol 6 (19) ◽  
pp. 15320-15326 ◽  
Author(s):  
Juan Zeng ◽  
Qi Cao ◽  
Bo Jing ◽  
Xiuxiang Peng

Hierarchical porous nitrogen doping activated carbon materials were designed and prepared by carbonization of electrospun composite carbon nanofibers and subsequent chemical activation.

Nanoscale ◽  
2021 ◽  
Author(s):  
Lumin Chen ◽  
Hou-Yong Yu ◽  
Ziheng Li ◽  
Xiang Chen ◽  
Wenlong Zhou

Carbon materials are highly promising electrode materials for supercapacitors, due to their hierarchical porous structure and large specific surface area. However, the limited specific capacitance and inferior rate capability significantly...


2021 ◽  
Author(s):  
Feiqiang Guo ◽  
Yinbo Zhan ◽  
Xiaopeng Jia ◽  
Huiming Zhou ◽  
Shuang Liang ◽  
...  

Using Sargassum as the precursor, a novel approach was developed to synthesize three-dimensional porous carbons as high-performance electrode materials for supercapacitors via KOH activation and subsequent nitrogen-doping employing melamine as...


2014 ◽  
Vol 2 (15) ◽  
pp. 5352-5357 ◽  
Author(s):  
Jinpeng Han ◽  
Guiyin Xu ◽  
Bing Ding ◽  
Jin Pan ◽  
Hui Dou ◽  
...  

The porous nitrogen-doped hollow carbon spheres derived from polyaniline are promising electrode materials for high performance supercapacitors due to their hierarchical porous structure and nitrogen-doping.


2020 ◽  
Vol 10 (4) ◽  
pp. 523-530 ◽  
Author(s):  
Jiaxin Peng ◽  
Juan Yu ◽  
Bicheng Meng ◽  
Lejie Wang ◽  
Xingliang Zhang ◽  
...  

Activated carbon materials are used in hybrid battery capacitors. They reduce energy density of devices, and can greatly improve the cycle life and power density. Herein, we used fast-growing persimmon branches in Shaanxi as a biomass carbon source. The persimmon branch activated carbon (PB-AC850) material was found to exhibit abundant graded pore structure similar to graphite structure after KOH activation. The macro/mesoporous structure in PB-AC850 facilitated the ions (solvated PF-6 ) transport, resulting in much better rate capability as compared to commercial activated carbon. It was moreover found from preparation of the hybrid battery capacitor that the addition of activated carbon reduced resistance and polarization of the device. LFP+PB-AC850 exhibited excellent cycle stability with high to 93.4% capacity reservation after 500 cycles at 5C.


2020 ◽  
Vol 31 (19) ◽  
pp. 16247-16259
Author(s):  
Sihao Yan ◽  
Chenguang Tang ◽  
Zhao Yang ◽  
Xuemin Wang ◽  
Hang Zhang ◽  
...  

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