3D sponge-like nanoporous carbons via a facile synthesis for high-performance supercapacitors: Direct carbonization of tartrate salt | |
Luo, Heming; Yang, Yanfei; Zhao, Xia; Zhang, Jianqiang; Chen, Yanzheng | |
2015-07-01 | |
发表期刊 | Electrochimica Acta |
ISSN | 00134686 |
卷号 | 169页码:13-21 |
摘要 | We report the direct synthesis of 3D sponge-like nanoporous carbons via carbonization of tartrate salt, including potassium tartrate and sodium tartrate, in inert atmosphere without any activation. The carbonization temperature is a very important parameter that ensures formation of the desired carbon structures and enhances their electrochemical performance in supercapacitors. Given that alkali metal is present in the selected carbon precursor, higherature activation causes reaming of carbon-K-800-1 to achieve a high specific surface area of 1018 m2 g-1, thereby rendering the material suitable for use as an electrode for supercapacitors. All of the aqueous measurements were performed in a three-electrode system with 6 M KOH as the electrolyte. Carbon-K-800-1 can deliver a high specific capacitance of 296 F g-1 (29.1 μF cm-2) at a constant charge-discharge current of 0.7 A g-1; this capacitance may be maintained at 213 F g-1 (20.9 μF cm-2) at 20 A g-1. A long cycle stability of 95.1% capacitance retention was observed after 5000 charge-discharge cycles at a current density of 3 A g-1. © 2015 Elsevier Ltd. All rights reserved. |
关键词 | Capacitance Carbon Carbonization Chemical activation Electric discharges Electrodes Electrolytes Potassium hydroxide Carbonization temperatures Charge-discharge cycle Direct carbonizations Electrochemical performance High specific capacitances High specific surface area Nanoporous carbons Three electrode-system |
DOI | 10.1016/j.electacta.2015.04.049 |
收录类别 | EI ; SCIE |
语种 | 英语 |
WOS研究方向 | Electrochemistry |
WOS类目 | Electrochemistry |
WOS记录号 | WOS:000355007400003 |
出版者 | Elsevier Ltd |
EI入藏号 | 20151600767675 |
EI主题词 | Supercapacitor |
EI分类号 | 701.1 Electricity: Basic Concepts and Phenomena - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds |
来源库 | Compendex |
分类代码 | 701.1 Electricity: Basic Concepts and Phenomena - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/112311 |
专题 | 石油化工学院 工会 |
通讯作者 | Luo, Heming |
作者单位 | Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China |
第一作者单位 | 石油化工学院 |
通讯作者单位 | 石油化工学院 |
第一作者的第一单位 | 石油化工学院 |
推荐引用方式 GB/T 7714 | Luo, Heming,Yang, Yanfei,Zhao, Xia,et al. 3D sponge-like nanoporous carbons via a facile synthesis for high-performance supercapacitors: Direct carbonization of tartrate salt[J]. Electrochimica Acta,2015,169:13-21. |
APA | Luo, Heming,Yang, Yanfei,Zhao, Xia,Zhang, Jianqiang,&Chen, Yanzheng.(2015).3D sponge-like nanoporous carbons via a facile synthesis for high-performance supercapacitors: Direct carbonization of tartrate salt.Electrochimica Acta,169,13-21. |
MLA | Luo, Heming,et al."3D sponge-like nanoporous carbons via a facile synthesis for high-performance supercapacitors: Direct carbonization of tartrate salt".Electrochimica Acta 169(2015):13-21. |
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