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Activated carbon derived from pitaya peel for supercapacitor applications with high capacitance performance
Materials Letters ( IF 3 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.matlet.2020.127339
Wenjing Lu , Xiaohua Cao , Lina Hao , Yiping Zhou , Yawei Wang

Abstract In this paper, activated carbon with a high specific surface area up to 1872 m2 g−1 has been prepared from pitaya peel by chemical activation method using KOH solution as an activator. The novel activated carbon exhibits a significantly high specific capacitance of 255 F g−1 at a current density of 1 A g−1 in 6 M KOH, as well as excellent cycling stability with capacity retention of 96.4% after 5000 cycles at 5 A g−1. Our findings suggest that the biowaste like pitaya peel can be converted into available activated carbon, indicating a low-cost substitute for conventional electrode materials for supercapacitors.

中文翻译:

来自火龙果皮的活性炭用于具有高电容性能的超级电容器应用

摘要 本文以火龙果皮为原料,以KOH溶液为活化剂,采用化学活化法制备了比表面积高达1872 m2 g-1的活性炭。新型活性炭在 6 M KOH 中 1 A g-1 的电流密度下表现出 255 F g-1 的显着比电容,以及优异的循环稳定性,在 5 A g 下循环 5000 次后容量保持率为 96.4% -1。我们的研究结果表明,像火龙果皮这样的生物废物可以转化为可用的活性炭,这表明可以低成本替代超级电容器的传统电极材料。
更新日期:2020-04-01
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