Hierarchical porous carbon materials from bio waste-mango stone for high-performance supercapacitor electrodes

被引：23
|
作者：
Su, Xiaoli [1 ]
Jiang, Shuai [1 ]
Zheng, Xiucheng [1 ]
Guan, Xinxin [1 ]
Liu, Pu [1 ]
Peng, Zhikun [1 ]
机构：
[1] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan, Peoples R China
来源：
MATERIALS LETTERS | 2018年 / 230卷
基金：
中国国家自然科学基金;
关键词：
Mango stone; Carbon materials; Hierarchical pores; Electrical properties; Supercapacitor;
D O I：
10.1016/j.matlet.2018.07.096
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Porous activated carbon was successfully fabricated from bio waste-mango stone via a two-step chemical etching strategy. The optimized carbon material (denoted as MGKZ-2) displayed a high specific capacitance of 353.8 Fg(-1) at 0.5 A g(-1) and a satisfactory rate capability in the three-electrode supercapacitor system. Moreover, MGKZ-2-based symmetric cell presented a high energy density of 27.6 Wh kg(-1) at 159.9 W kg(-1), as well as long-term cycling stability due to its hierarchical pores to offer large ion-accessible surface area, efficient ion diffusion and electron transport pathways. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：123 / 127
页数：5
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