Scalable preparation of hierarchical porous activated carbon/graphene composites for high-performance supercapacitors

2019 ◽  
Vol 7 (16) ◽  
pp. 10058-10066 ◽  
Author(s):  
Yilun Huang ◽  
Yunkai Shi ◽  
Qianming Gong ◽  
Mouyi Weng ◽  
Yuyao Li ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Performance ◽  
Hierarchical Porous ◽  
Porous Activated Carbon

Graphene-covered activated carbon with excellent capacitive performances was prepared by a controllable strategy, which is verified by calculations and experiments.

Preparation of Hierarchical Porous Activated Carbon from Banana Leaves for High‐performance Supercapacitor: Effect of Type of Electrolytes on Performance

2020 ◽  
Author(s):  
Chanchal Kumar Roy ◽  
Syed Shaheen Shah ◽  
Akter H. Reaz ◽  
Sharmin Sultana ◽  
Al-Nakib Chowdhury ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Performance ◽  
Hierarchical Porous ◽  
Banana Leaves ◽  
Porous Activated Carbon

scholarly journals Nitrogen-Doped Hierarchical Porous Activated Carbon Derived from Paddy for High-Performance Supercapacitors

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 318
Author(s):  
Yudan Yuan ◽  
Yi Sun ◽  
Zhichen Feng ◽  
Xingjian Li ◽  
Ruowei Yi ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Specific Capacitance ◽  
High Performance ◽  
High Energy ◽  
High Energy Density ◽  
Scale Production ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Porous Activated Carbon

A facile and environmentally friendly fabrication is proposed to prepare nitrogen-doped hierarchical porous activated carbon via normal-pressure popping, one-pot activation and nitrogen-doping process. The method adopts paddy as carbon precursor, KHCO3 and dicyandiamide as the safe activating agent and nitrogen dopant. The as-prepared activated carbon presents a large specific surface area of 3025 m2·g−1 resulting from the synergistic effect of KHCO3 and dicyandiamide. As an electrode material, it shows a maximum specific capacitance of 417 F·g−1 at a current density of 1 A·g−1 and very good rate performance. Furthermore, the assembled symmetric supercapacitor presents a large specific capacitance of 314.6 F·g−1 and a high energy density of 15.7 Wh·Kg−1 at 1 A·g−1, maintaining 14.4 Wh·Kg−1 even at 20 A·g−1 with the energy density retention of 91.7%. This research demonstrates that nitrogen-doped hierarchical porous activated carbon derived from paddy has a significant potential for developing a high-performance renewable supercapacitor and provides a new route for economical and large-scale production in supercapacitor application.

Corncob-Derived Hierarchical Porous Activated Carbon for High-Performance Lithium-Ion Capacitors

2020 ◽  
Vol 34 (12) ◽  
pp. 16885-16892
Author(s):  
Shuhua Yang ◽  
Le Zhang ◽  
Jing Sun ◽  
Kui Li ◽  
Songfang Zhao ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Performance ◽  
Lithium Ion ◽  
Hierarchical Porous ◽  
Porous Activated Carbon

Hierarchical porous activated carbon derived from Enteromorpha prolifera for superior electrochemical capacitive behavior

Ionics ◽  
2019 ◽  
Vol 26 (1) ◽  
pp. 403-413 ◽  
Author(s):  
Tian Xie ◽  
Jie Wang ◽  
Xiaohong Liu ◽  
Yuanyuan Shang ◽  
Chuanli Ma ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Enteromorpha Prolifera ◽  
Capacitive Behavior ◽  
Hierarchical Porous ◽  
Porous Activated Carbon

Facile synthesis of 3D CuS micro-flowers grown on porous activated carbon derived from pomelo peel as electrode for high-performance supercapacitors

2019 ◽  
Vol 299 ◽  
pp. 253-261 ◽  
Author(s):  
Caixia Li ◽  
Ping He ◽  
Lingpu Jia ◽  
Xingquan Zhang ◽  
Tinghong Zhang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
High Performance ◽  
Facile Synthesis ◽  
Pomelo Peel ◽  
Porous Activated Carbon
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