Coffee waste-derived porous carbon based flexible supercapacitors

被引：23

作者：

Pandey, Keshab ^{[1
]}

Jeong, Hae Kyung ^{[1
,2
]}

机构：

[1] Daegu Univ, Dept Phys, Gyongsan 38453, South Korea

[2] Daegu Univ, Dept Mat Energy Sci & Engn, Gyongsan 38453, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2022年 / 809卷

关键词：

Coffee waste; Flexible energy storage devices; Supercapacitor; Nitrogen doping; REDUCED GRAPHITE OXIDE; ACTIVATED CARBON; PERFORMANCE;

D O I：

10.1016/j.cplett.2022.140173

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nitrogen doped porous activated carbon was synthesized from coffee waste for flexible supercapacitor appli-cations. Nitrogen of 8.0 at% was doped, and specific capacitance of 139F g-1 at 0.5 A/g with specific energy of 12.5 Wh kg-1 and specific power of 202 W kg-1 was obtained for flexible supercapacitors. Eventually, high specific capacitance retention (90.5 %) as well as high coulombic efficiency (84.5 %) after 5,000 cycles with reliable flexibility were shown. The results demonstrated that the synthesized nitrogen-doped coffee waste derived carbon electrode could be used for the flexible supercapacitor electrodes.

引用

页数：8

共 40 条

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