Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation.
Enhanced Capacitive Performance of N-Doped Activated Carbon from Petroleum Coke by Combining Ammoxidation with KOH Activation.
复制标题
氨氧化与 KOH 活化相结合增强石油焦氮掺杂活性炭的电容性能
DOI：
10.1186/s11671-016-1460-3
复制
发表时间：
2016-12
影响因子：
--
通讯作者：
Yan Z
中科院分区：
文献类型：
--
作者：
Zhang Y;Zhang Y;Huang J;Du D;Xing W;Yan Z
Low cost with high specific capacitance and energy density is the critical and main requirement for practical supercapacitors. A novel N-doped activated carbon was fabricated by KOH activation of petroleum coke and ammonia treatment. The as-prepared carbon exhibits a high specific surface area (1875 m2g−1), excellent conductivity (57 S m−1), and rich nitrogen level (4.0 wt%). Those outstanding characters result in this porous carbon a hopeful electrode material for electrochemical supercapacitors. It shows high specific capacitance (up to 299 F g−1) and superior rate capability (76 % retention ratio at 20 A g−1) in 30 wt% KOH aqueous electrolyte. This efficient treatment method ensures its prosperous application in energy storage systems.
