期刊
ACS OMEGA
卷 7, 期 42, 页码 37564-37571出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.2c04369
关键词
-
资金
- Natural Science Foundation of Jiangxi [20212BAB214002]
- College Students' Innovative Entrepreneurial Training Plan Program [202210405016]
- National Natural Science Foundation of China [41361088, 41867063]
A daylily-derived porous carbon material with high specific surface area and heteroatom content has been successfully prepared by a simple carbonization method. It shows remarkable specific capacitance and excellent cycling stability, making it suitable for high-performance supercapacitors.
Biomass-derived activated carbon is a widely used electrode material for supercapacitors. One of the keys to preparing high-performance activated carbon is the selection of appropriate precursors. Daylily is a common edible herb and is widely planted in Asia. It is rich in nitrogen and phosphorus, so it can be used as a precursor of heteroatom-doped activated carbon. Herein, a daylily-derived porous carbon with a large specific surface area and high content of heteroatoms has been successfully prepared by a simple carbonization method. The as-prepared carbon materials showed a remarkable specific capacitance of 299.1 F/g at 0.5 A/g and excellent cyding stability of 99.6% after 4000 cycles at a current density of 1 A/g. Moreover, the assembled symmetric supercapacitor showed a high energy density of 21.6 Wh/kg at a power density of 598.2 W/kg in 6 M KOH electrolyte. These results demonstrate that the daylily-derived porous carbon is an excellent material for high-performance supercapacitors.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据