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 | |
发表期刊 | ELECTROCHIMICA ACTA |
ISSN | 0013-4686 |
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, high-temperature activation causes reaming of carbon-K-800-1 to achieve a high specific surface area of 1018 m(2) 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 mu F 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 mu F 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). (C) 2015 Elsevier Ltd. All rights reserved. |
关键词 | 3D sponge-like nanoporous carbons Direct carbonization Supercapacitor High capacitance Tartrate salt |
DOI | 10.1016/j.electacta.2015.04.049 |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Electrochemistry |
WOS类目 | Electrochemistry |
WOS记录号 | WOS:000355007400003 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/34024 |
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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