Fabrication of porous carbon beads from polyacrylonitrile as electrode materials for electric double-layer capacitors

被引：0
作者：
Byoung-Min Lee
Beom-Seok Choi
Jang-Yong Lee
Sung-Kwon Hong
Jung-Soo Lee
Jae-Hak Choi
机构：
[1] Chungnam National University,Department of Polymer Science and Engineering
[2] Chosun University,Department of Bio
来源：
Carbon Letters | 2021年 / 31卷
关键词：
Porous carbon bead; Non-solvent induced phase separation; Electric double-layer capacitor; Polyacrylonitrile; Carbonization; Activation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, we developed a facile and template-free strategy for the preparation of activated porous carbon beads (APCBs) from polyacrylonitrile. The chemical activation with KOH was found to enhance the pore properties, such as specific surface area (SSA), pore volume, and pore area. The APCBs exhibited a large SSA of 1147.99 m2/g and a pore area of 131.73 m2/g. The APCB-based electrodes showed a good specific capacitance of 112 F/g at 1 A/g in a 6 M KOH electrolyte, and excellent capacitance retention of 100% at a current density of 5 A/g after 1000 cycles. Therefore, the APCBs prepared in this study can be applied as electrode materials for electric double-layer capacitors.
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页码：67 / 74
页数：7
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共 182 条
[1]  
Zhang LL(2009)Carbon-based materials as supercapacitor electrodes Chem Soc Rev 38 2520-2531
[2]  
Zhao XS(2017)Carbon-based composite materials for supercapacitor electrodes: a review J Mater Chem A 5 12653-12672
[3]  
Borenstein A(2014)Synthesis of nitrogen doped graphene from graphene oxide within an ammonia flame for high performance supercapacitors RSC Adv 4 55394-55399
[4]  
Hanna O(2014)Activated carbon-coated carbon nanotubes for energy storage in supercapacitors and capacitive water purification ACS Sustain Chem Eng 2 1289-1298
[5]  
Attias R(2016)Hierarchically porous carbon monoliths comprising ordered mesoporous nanorod assemblies for high-voltage aqueous supercapacitors Chem Mater 28 3944-3950
[6]  
Luski S(2015)Fabrication and supercapacitive properties of hierarchical porous carbon from polyacrylonitrile Mater Res Bull 72 204-210
[7]  
Brousse T(2017)Fabrication of N-doped and shape-controlled porous monolithic carbons from polyacrylonitrile for supercapacitors RSC Adv 7 43172-43180
[8]  
Aurbach D(2019)Optimization of the pore structure of PAN-based carbon fibers for enhanced supercapacitor performances via electrospinning Compos B 161 10-17
[9]  
Li D(2010)One-pot preparation and uranyl adsorption properties of hierarchically porous zirconium titanium oxide beads using phase separation processes to vary macropore morphology Langmuir 26 17581-6903
[10]  
Yu C(2018)Large scale production of polyacrylonitrile-based porous carbon nanospheres for asymmetric supercapacitors J Mater Chem A 6 6891-29774
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