文献类型：期刊文献

英文题名：Fishnet-like double active layer-loaded carbon fiber for electrical double-layer capacitors

作者：Fang, Yanli Ma, Xianguo Ren, Jianwei Wang, Hui

第一作者：Fang, Yanli

通信作者：Ma, XG[1];Wang, H[2]

机构：[1]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China;[2]Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China;[3]Univ Johannesburg, Dept Mech Engn Sci, Cnr Kingsway & Univ Rd, ZA-2092 Johannesburg, South Africa

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China;corresponding author), Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2023

外文期刊名：DALTON TRANSACTIONS

收录：;EI(收录号：20232014109600);Scopus(收录号：2-s2.0-85159350160);WOS:【SCI-EXPANDED(收录号:WOS:000983760000001)】；

基金：The authors would like to thank the Natural Science Foundation of Shandong Province of China (ZR2020MB024) and High School Science and Technology Talent Support Project of Guizhou Province of China (Grant No. QJHKY [2022] 084) for financially supporting this work.

语种：英文

摘要：The rational design and controllable synthesis of high-performance energy storage materials are important measures to address the growing demand for energy storage devices. This work involves the growth of a fishnet-like Fe2O3 nanorod@oxygen-rich carbon layer structure directly onto carbon fiber cloth as a binder-free electrode for symmetric capacitors. The growth of Fe2O3 nanorods provided a large specific surface area, and the coating of an oxygen-rich carbon layer protected the Fe2O3 nanorods as an active substance. Furthermore, oxidation treatment created rich electrochemically active sites by loading oxygen-containing functional groups onto the composite surface. As a result, the optimal OC@Fe2O3-ACC sample exhibited a high areal specific capacitance of 1687 mF cm(-2) at a current density of 1 mA cm(-2). Meanwhile, an excellent capacity retention rate of 58.7% was achieved at 15 mA cm(-2). Finally, the long-term cycling stability was verified with an 80% retention rate of the initial capacitance after 12 000 cycles.