A hydrothermal carbonization process for the preparation of activated carbons from hemp straw: an efficient electrode material for supercapacitor application | |
Jiang, Xia1,2; Shi, Gaofeng1; Wang, Guoying1; Mishra, Puranjan3; Liu, Chao1; Dong, Yucan1; Zhang, Peng1; Tian, Haoqi1; Liu, Yanrong1; Wang, Zhao1 | |
2019-07 | |
发表期刊 | IONICS |
ISSN | 0947-7047 |
卷号 | 25期号:7页码:3299-3307 |
摘要 | In the present study, a hemp straw activated carbon (HSAC) was simply prepared by hydrothermal process followed by a pre-oxidization and carbonization by KOH solid-state activation. The as-synthesized HSAC shows abundant porosity, which is designed to be beneficial to the fast transportation of electrolyte. The preparation conditions for HSACs under different mass ratios of KOH:precursors were optimized, and the sample obtained by a mass ratio of 4:1 showed an outstanding capacitive property (specific capacitance of 279Fg(-1) at 0.5Ag(-1) current density). Besides, the capacitance of 91.6% was retained after 5000 charge-discharge cycles under 2Ag(-1) current density. The resulting symmetrical supercapacitor obtained by using the HSAC electrodes exhibited an excellent electrochemical performance, which successfully illuminated a LED light. The HSAC has great potentials as electrode material for high-performance supercapacitor, which opens a new way for value increment of natural products. |
关键词 | Hydrothermal method Hemp straw Activated carbons Electrode material Supercapacitor |
DOI | 10.1007/s11581-019-02850-8 |
收录类别 | SCI ; SCIE |
语种 | 英语 |
资助项目 | Gansu Provincial Party Committee Young Creative Talents[2017/121] |
WOS研究方向 | Chemistry ; Electrochemistry ; Physics |
WOS类目 | Chemistry, Physical ; Electrochemistry ; Physics, Condensed Matter |
WOS记录号 | WOS:000471637600032 |
出版者 | SPRINGER HEIDELBERG |
EI入藏号 | 20190706488157 |
EI主题词 | Electrochemical electrodes |
EI分类号 | 701.1 Electricity: Basic Concepts and Phenomena - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 821.4 Agricultural Products |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/31766 |
专题 | 石油化工学院 法学院 |
通讯作者 | Shi, Gaofeng |
作者单位 | 1.Lanzhou Univ Technol, Sch Petrochem Engn, Lanzhou, Gansu, Peoples R China; 2.Gansu Vocat Coll Agr, Lanzhou, Gansu, Peoples R China; 3.Univ Malaysia Pahang, Fac Engn Technol, Lebuhraya Tun Razak, Kuantan 26300, Pahang, Malaysia |
第一作者单位 | 兰州理工大学 |
通讯作者单位 | 兰州理工大学 |
第一作者的第一单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Jiang, Xia,Shi, Gaofeng,Wang, Guoying,et al. A hydrothermal carbonization process for the preparation of activated carbons from hemp straw: an efficient electrode material for supercapacitor application[J]. IONICS,2019,25(7):3299-3307. |
APA | Jiang, Xia.,Shi, Gaofeng.,Wang, Guoying.,Mishra, Puranjan.,Liu, Chao.,...&Zhang, Hongquan.(2019).A hydrothermal carbonization process for the preparation of activated carbons from hemp straw: an efficient electrode material for supercapacitor application.IONICS,25(7),3299-3307. |
MLA | Jiang, Xia,et al."A hydrothermal carbonization process for the preparation of activated carbons from hemp straw: an efficient electrode material for supercapacitor application".IONICS 25.7(2019):3299-3307. |
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