超级电容器
水热碳化
能源作物
沼气
储能
生物燃料
原材料
碳纤维
甲烷
固碳
制浆造纸工业
生物能源
环境科学
材料科学
碳化
化学
废物管理
电容
电极
二氧化碳
吸附
复合数
功率(物理)
物理
有机化学
物理化学
量子力学
复合材料
工程类
作者
Mei Huang,Ke Huang,Li Zhao,Jinsong He,Dong Tian,Lei Ye,Jingyun Zou,Fei Shen
标识
DOI:10.1016/j.indcrop.2023.117607
摘要
To seek a possible path to being carbon neutral by using an energy crop, a comprehensive model integrating energy storage and energy supply was developed utilizing sorghum juice as raw material. We prepared a microporous activated carbon with an ultra-high surface area of 3278 m2 g−1 by integrating hydrothermal carbonization, high temperature pyrolysis, and KOH activation. The resulting supercapacitor electrode exhibited a high specific capacitance (314.0 F g−1), exceptional cycling stability (99.3% after 10,000 cycles), and a considerable energy density (8.6 Wh kg−1). Additionally, ∼570 kg ha−1 methane can be produced from the post-hydrothermal waste water through anaerobic digestion, which can compensate for the energy consumed in preparing carbon and allow for a cleaner process. This work offers a novel concept for integrating energy storage, carbon sequestration, and energy supply from energy crops.
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