超级电容器
产量(工程)
杂原子
生物量(生态学)
碳纤维
化学工程
原材料
材料科学
试剂
氮气
制浆造纸工业
多孔性
纳米技术
化学
农学
电容
电极
工程类
复合数
复合材料
有机化学
物理化学
生物
戒指(化学)
作者
Chao Wang,Hanwei Wang,Baokang Dang,Zhe Wang,Xiaoping Shen,Caicai Li,Qingfeng Sun
标识
DOI:10.1016/j.renene.2020.04.092
摘要
Conversion of Biomass into porous carbon with high yield is a huge challenge due to the consumption of plentiful carbon during pore-forming. Here, we employ the biomass materials as the activation agent to circumvent the excessive etching effect of the conventional chemical reagent. Both green activation agent and raw material are converted into porous carbon, which results in ultrahigh yield (even more than 100%). Furthermore, the biomass activation agent with abundant metal elements not only contributes to pore-forming but also achieves heteroatom doping. The obtained N-doped hierarchical porous carbon presented good capacitive capability (150.1 F g−1 at 0.2 A g−1) and high rate performance (∼61% of capacitance retention from 0.2 to 50 A g−1). The green activation process achieves both the increase of yield and excellent capacitive properties for the first time. The green strategy proposed in this work for producing porous carbon with high yield provides a new consideration on comprehensive utilization of biomass resources.
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