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Bamboo-based self-supporting electrodes via green activation for high-performance supercapacitors

文献类型：期刊论文

作者Pan, Kaiming1; Ni, Xuanyuan2; Li, Shengdi1; Tian, Yingzi1; Xiong, Qingang1
刊名DIAMOND AND RELATED MATERIALS
出版日期2023-12-01
卷号140页码:7
关键词Self-supporting electrodes Bamboo-based carbon Supercapacitor Hierarchical porous channel
ISSN号0925-9635
DOI10.1016/j.diamond.2023.110521
通讯作者Tian, Yingzi(yztian@scut.edu.cn) ; Xiong, Qingang(qingangxiong@scut.edu.cn)
英文摘要As a potential high-efficiency energy storage device, supercapacitor electrode materials encounter persistent challenges, including limitations in energy density and stability, particularly at large loadings. In this work, a bamboo-based self-supporting thick electrode (similar to 30 mg cm(-2)) is prepared. The electrode takes full advantage of the vertical growth channels and surface oxygen-containing functional groups of bamboo, which improves the ion transport kinetics within its structure. Inspired by the fermentation process of bread with baking soda, the electrode material is prepared by KHCO3 activation at 1000 degrees C. The optimal sample exhibits a specific surface area of 903 m(2) g(-1) and an electrode specific capacitance of 142.7 F g(-1) at current density of 1 A g(-1). Furthermore, the assembled supercapacitor device exhibits excellent electrochemical performance even at high loadings. Specifically, the supercapacitor exhibits high energy density of 20.36 Wh kg(-1) at 400 W kg(-1). The device also has excellent cycling stability with a capacitance retention of 104.4 % after 10,000 cycles at a high current of 5 A g(-1). Benefiting from the green preparation process, high energy density, and excellent cycling stability, the bamboo-based self-supporting thick electrode exhibits immense potential for further development and utilization.
WOS关键词HIERARCHICALLY POROUS CARBON ; BIOMASS ; FABRICATION ; EVOLUTION ; WOOD
资助项目State Key Laboratory of Pulp and Paper Engineering of School of Light Industry of South China University of Technology, Guangzhou Institute of Energy of Chinese Academy of Sciences (CAS) ; Center for Analysis and Testing of South China University of Technology
WOS研究方向Materials Science ; Physics
语种英语
WOS记录号WOS:001109589600001
出版者ELSEVIER SCIENCE SA
资助机构State Key Laboratory of Pulp and Paper Engineering of School of Light Industry of South China University of Technology, Guangzhou Institute of Energy of Chinese Academy of Sciences (CAS) ; Center for Analysis and Testing of South China University of Technology
源URL[http://ir.giec.ac.cn/handle/344007/40327]  
专题中国科学院广州能源研究所
通讯作者Tian, Yingzi; Xiong, Qingang
作者单位1.South China Univ Technol, Sch Light Ind & Engn, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Pan, Kaiming,Ni, Xuanyuan,Li, Shengdi,et al. Bamboo-based self-supporting electrodes via green activation for high-performance supercapacitors[J]. DIAMOND AND RELATED MATERIALS,2023,140:7.
APA Pan, Kaiming,Ni, Xuanyuan,Li, Shengdi,Tian, Yingzi,&Xiong, Qingang.(2023).Bamboo-based self-supporting electrodes via green activation for high-performance supercapacitors.DIAMOND AND RELATED MATERIALS,140,7.
MLA Pan, Kaiming,et al."Bamboo-based self-supporting electrodes via green activation for high-performance supercapacitors".DIAMOND AND RELATED MATERIALS 140(2023):7.

入库方式： OAI收割

来源：广州能源研究所

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