Ordinary filter paper-derived hierarchical pore structure carbon materials for supercapacitor
| Autor: | Yongcheng Xiao, Huqiang Chen, Shixuan Xin, Songbo Chen, Yue Lu, Yongxiao Bai, Xinjun Hu, Yuanzhi Chao |
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| Rok vydání: | 2021 |
| Předmět: |
Supercapacitor
Materials science Filter paper Renewable Energy Sustainability and the Environment Carbonization 020209 energy Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Electrochemistry Capacitance Energy storage chemistry Chemical engineering Specific surface area 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering 0210 nano-technology Carbon |
| Zdroj: | Journal of Energy Storage. 35:102331 |
| ISSN: | 2352-152X |
| DOI: | 10.1016/j.est.2021.102331 |
| Popis: | Adopting filter paper as precursor, combined with a facile carbonization and activation process at a relative low temperature of 650°C, a regular and hierarchical porous carbon electrode materials are obtained to assemble high performance supercapacitor. The PFPC40 supercapacitor exhibits a high specific capacitance of 219.6 F∙g−1 and 173.0 F∙g−1 at 1 A∙g−1 and 50 A∙g−1, respectively, indicating an excellent rate capability of 78.8%. In addition, the capacitance retention of PFPC40 supercapacitor reaches 99.0% after ten thousand charge-discharge cycles at 5 A∙g−1, demonstrating excellent cycling stability. Furthermore, the PFPC40750 sample possesses a high specific surface area (SSA) of 1920 m2∙g−1, and the good electrochemical performance is similar to that of PFPC40. Therefore, this work provides a new strategy for the preparation of hierarchical porous carbon electrode material and this material is promising to applied in energy storage device. |
| Databáze: | OpenAIRE |
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