期刊
MATERIALS LETTERS
卷 252, 期 -, 页码 345-348出版社
ELSEVIER
DOI: 10.1016/j.matlet.2019.06.015
关键词
Carbon materials; Electrical properties; Porous graphene; Controlled pore size; Partial combustion
资金
- National Science Foundation of China [21675164, 21822407]
Graphene with a porous structure can provide low-resistant pathways and short ion diffusion channels for energy storage, and thus is expected to be an excellent electrode material. Here, a simple partial combustion route was used to synthesize porous graphene with controllable pore size as a high-performance electrode material for supercapacitors. The results indicated that the obtained porous graphene exhibits the highest specific capacitance in this study is 284 F/g at the current density of 0.2 A/g in 6 M KOH. Moreover, porous graphene showed good cycle durability over 83% at the current density of 1.0 A/g after 5000 cycles, and with columbic efficiency over 95%. (C) 2019 Elsevier B.V. All rights reserved.
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