Boosting Specific Energy and Power of Carbon-Ionic Liquid Supercapacitors by Engineering Carbon Pore Structures
Boosting Specific Energy and Power of Carbon-Ionic Liquid Supercapacitors by Engineering Carbon Pore Structures
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通过设计碳孔结构提高碳离子液体超级电容器的比能量和功率
DOI:
10.3389/fchem.2020.00006
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发表时间:
2020-02
影响因子:
5.5
通讯作者:
Chen De
中科院分区:
文献类型:
--
作者:
Zhang Dong;Gao Hongquan;Hua Guomin;Zhou Haitao;Wu Jianchun;Zhu Bowei;Liu Chao;Yang Jianhong;Chen De
Carbon-ionic liquid (C-IL) supercapacitors (SCs) promise to provide high capacitance and high operating voltage, and thus high specific energy. It is still highly demanding to enhance the capacitance in order to achieve high power and energy density. We synthesized a high-pore-volume and specific-surface-area activated carbon material with a slit mesoporous structure by two-step processes of carbonization and the activation from polypyrrole. The novel slit-pore-structured carbon materials provide a specific capacity of 310 F g−1 at 0.5 A g−1 for C-IL SCs, which is among one of the highest recorded specific capacitances. The slit mesoporous activated carbons have a maximum ion volume utilization of 74%, which effectively enhances ion storage, and a better interaction with ions in ionic liquid electrolyte, thus providing superior capacitance. We believe that this work provides a new strategy of engineering pore structure to enhance specific capacitance and rate performance of C-IL SCs.
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影响因子:
29.4
作者:
Hongshuai Hou;C. Banks;Mingjun Jing;Yan Zhang;Xiaobo Ji
通讯作者:
Hongshuai Hou;C. Banks;Mingjun Jing;Yan Zhang;Xiaobo Ji
影响因子:
19
作者:
Wei, Lu;Sevilla, Marta;Yushin, Gleb
通讯作者:
Yushin, Gleb
影响因子:
27.8
作者:
Lu Wei;M. Sevilla;A. B. Fuertes;R. Mokaya;G. Yushin
通讯作者:
Lu Wei;M. Sevilla;A. B. Fuertes;R. Mokaya;G. Yushin
影响因子:
9.5
作者:
Xiaoru Yun;Jingying Li;Xianhong Chen;Han Chen;Li Xiao;Kaixiong Xiang;Wenhao Chen;Haiyang Liao;Yirong Zhu
通讯作者:
Yirong Zhu
影响因子:
64.8
作者:
Aurbach, D;Lu, Z;Levi, E
通讯作者:
Levi, E