从花生中提取的含多的多孔碳作为高性能超级电容器的高效电极
Shibo Liu1, Qishan Zhang1, Jiani Liu1
1Low-Carbon Technology & Chemical Reaction Engineering Lab, College of Chemical Engineering, Sichuan University, Chengdu 610065, China.
International journal of molecular sciences
|July 27, 2024
概括
来自花生的化多孔碳增强了超级电容器的性能. 优化的材料显示出高容量,优良的速率能力和长期循环稳定性,提供可持续的电极解决方案.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 对多孔碳材料的兴奋剂对于提高电化学性能至关重要.
- 开发超级电容器的可持续和高性能电极材料是一个活跃的研究领域.
研究的目的:
- 从花生中合成和表征添加多孔碳,用于超级电容器应用.
- 为了研究不同剂对衍生碳材料的电化学性质的影响.
主要方法:
- 花生被用作多孔碳合成的前体.
- 使用了各种剂 (胺,尿素,尿酸,氨二酸).
- 电化学性能使用循环电量计,静电电荷放电和电化学阻抗光谱学进行了评估.
主要成果:
- 优化的PA-1-1电极 (使用氨二酸) 呈现出高含量 (3.11%) 和特定表面积 (602.7 m2/g).
- PA-1-1在6M KOH中以1A/g的速度显示出208.3F/g的高特异电容.
- 实现了优异的速率性能 (170.0 F/g 在 20 A/g) 和循环稳定性 (98.8% 5000 循环后的保留).
- 一个对称超级电容器 (PA-1-1//PA-1-1) 的能量密度为17.7Wh/kg,功率密度为2467.0W/kg.
结论:
- 从花生中获得的化多孔碳是高性能超级电容器的有希望的电极材料.
- 氨二酸是一种有效的剂,可以增强花生皮衍生的碳的电化学特性.
- 这项研究提供了关于设计可持续的生物炭基碳材料的见解,这些碳材料来自废弃物,用于储能设备.
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