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绿豆皮衍生生物炭,用于高性能储能应用
Wasiu Olakunle Makinde1, Mohsen A Hassan1, Wael M Semida2
1Materials Science and Engineering Program, Egypt-Japan University of Science and Technology (E-JUST) New Borg El-Arab City 21934 Alexandria Egypt.
RSC advances
|May 15, 2025
概括
控制的和硫联合化绿豆皮生物炭 (NSGP) 的合成提高了超级电容器的性能. 与未使用和单独使用的生物炭相比,NSGP表现出优异的特定容量和稳定性,展示了其用于储能应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 废物价值化 废物价值化 废物价值化
背景情况:
- 绿豆皮 (GPP) 是一种丰富的农业废物,适合生物炭合成.
- 来自GPP的生物炭 (GP) 在废水处理和超级电容器应用中显示出前景.
- 异原子兴奋剂可以增强生物炭的特性,但不受控制的兴奋剂可以通过堵塞毛孔来阻碍性能.
研究的目的:
- 为了呈现无兴奋剂,兴奋剂 (NGP) 和与硫联合兴奋剂 (NSGP) 的受控合成,绿豆皮生物炭.
- 为了研究这些生物炭作为超级电容器的电极材料的电化学性能.
主要方法:
- 通过碳化和化学激活来控制GP,NGP和NSGP的合成.
- 使用分析结构和属性的技术进行表征.
- 电化学表征以确定电极材料和超级电容器设备的特定电容,能量密度和功率密度.
主要成果:
- 合成的GP,NGP和NSGP表现出具有无形和缺陷结构的纳米板形态.
- 基于NSGP的电极实现了257.01 F g-1的特定电容,超过了NGP (230.22 F g-1) 和GP (208.78 F g-1).
- 一个装配的NSGP//NSGP超级电容器装置显示了80.25 F g-1的特定电容,13.87 Wh kg-1的能量密度,500 W kg-1的功率密度,以及99.46%的容量保留在5000个周期内.
结论:
- 控制的N和S联合剂显著提高了绿豆皮生物炭的电化学性能.
- 性能改善归因于NSGP中增强的活性位点和导电性.
- 在高性能超级电容应用中,NSGP是一种有前途的材料.
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