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材料导报  2026, Vol. 40 Issue (8): 25020021-7    https://doi.org/10.11896/cldb.25020021
  高分子与聚合物基复合材料 |
热压法协同碳酸氢钾活化竹粉制备高性能超级电容器
林臻1, 戴达松1,2,*
1 福建农林大学材料工程学院,福州 350100
2 植物纤维功能材料国家林业和草原局重点实验室,福州 350002
Synergistic Hot-pressing and Potassium Bicarbonate Activation of Bamboo Sawdust for High-performance Supercapacitors
LIN Zhen1, DAI Dasong1,2,*
1 College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350100, China
2 National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350002, China
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摘要 生物质竹炭材料具有来源丰富、成本低廉、导电性好和表面结构易于调控等优点,在超级电容器电极材料领域受到广泛的研究。本研究以竹粉(Bamboo sawdust)为原料,选取碳酸氢钾(KHCO3)为成孔剂,采用热压工艺对竹粉进行致密化处理,制备具有高比表面积的竹炭。研究结果表明,物理-化学联合活化法处理使竹炭具有发达的孔隙结构(比表面积1 205 m2/g、孔体积0.639 cm3/g),在0.5 A·g-1下具有372 F·g-1的高比电容,即使在10 A·g-1的大电流密度下循环3 000次后电容保持率仍有70.4%,具有良好的电化学稳定性。因此,热压协同KHCO3活化法是提高生物炭电化学性能的有效策略。
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林臻
戴达松
关键词:  竹炭  碳酸氢钾  热压  物理活化  电化学性能    
Abstract: Biomass-derived bamboo charcoal has received significant research attention as electrode material for supercapacitors due to its abundant resources, low cost, excellent electrical conductivity, and tunable surface architecture. In this study, bamboo sawdust was employed as the precursor, potassium bicarbonate (KHCO3) was used as a porogen, and a hot-pressing technique was applied to densify the raw material, resulting in bamboo-derived carbon with a high specific surface area. The results indicated that the bamboo biochar treated by physicochemical synergistic activation had a well-developed porous structure (specific surface area of 1 205 m2/g, pore volume of 0.639 cm3/g). It exhibited a high specific capacitance of 372 F·g-1 at 0.5 A·g-1 and maintained 70.4% capacitance retention after 3 000 cycles at a high current density of 10 A·g-1, which showed good electrochemical stability. Therefore, the synergistic hot-pressing and KHCO3 activation is an effective strategy for enhancing the electrochemical performance of biochar.
Key words:  bamboo charcoal    potassium bicarbonate    hot-pressing    physical activation    electrochemical performance
出版日期:  2026-04-25      发布日期:  2026-05-06
ZTFLH:  TB32  
基金资助: 福建林业科技项目(KLB18007A);福建省大学生创新训练计划项目(FAFUXMPC20240507002-00414)
通讯作者:  * 戴达松,博士,福建农林大学材料工程学院讲师、硕士研究生导师。目前主要从事生物质储能材料、生物质低碳材料方面的研究。dasong.dai@vip.163.com   
作者简介:  林臻,福建农林大学材料工程学院硕士研究生,研究方向为生物质能源与炭材料。
引用本文:    
林臻, 戴达松. 热压法协同碳酸氢钾活化竹粉制备高性能超级电容器[J]. 材料导报, 2026, 40(8): 25020021-7.
LIN Zhen, DAI Dasong. Synergistic Hot-pressing and Potassium Bicarbonate Activation of Bamboo Sawdust for High-performance Supercapacitors. Materials Reports, 2026, 40(8): 25020021-7.
链接本文:  
https://www.mater-rep.com/CN/10.11896/cldb.25020021  或          https://www.mater-rep.com/CN/Y2026/V40/I8/25020021
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