Improving the capacitance of derived porous carbon by oxygen functional groups for supercapacitor

被引:12
作者
Guo, Jialin [1 ]
Zheng, Peng [2 ]
机构
[1] Shang Luo Univ, Coll Chem Engn & Modern Mat, Shaanxi Key Lab Comprehens Utilizat Tailings Reso, Shang Luo 726000, Shaanxi, Peoples R China
[2] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Shaanxi, Peoples R China
关键词
Carbon materials; Energy storage and conversion; Oxygen functional groups; Pseudo-capacitance; Pine needle; ENERGY;
D O I
10.1016/j.matlet.2017.11.083
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
3D Porous carbon derived from pine needle is prepared by hydrothermal followed KOH activation process. The high surface area (1175 m(2) g(-1)) and rich hierarchical pores provide the electrode with high capacitance. And the abundant surface oxygen functional groups offer additional pseudo-capacitance, which would increase the capacitance. It delivers the capacitance of 348 F g(-1) at 1 A g(-1) in a three-electrode cell. The well performance and the low cost make the derived porous carbon as a promising electrode. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:134 / 137
页数:4
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