硬币电池电动双层电容器与非洲棕树核活性碳系列和并行连接下
Chelsy Gaviria1, Zulamita Zapata-Benabithe1, José Valentín Restrepo2,3
1Grupo de Energía y Termodinámica, Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín 050031, Colombia.
Nanomaterials (Basel, Switzerland)
|February 26, 2026
概括
这项研究探讨了棕果核活性碳的可持续超级电容器. KOH活性炭表现出卓越的性能,突出了其在高效的储能设备中的潜力.
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
- 可持续能源 可持续能源
背景情况:
- 对于高效和可持续的储能解决方案的需求日益增长.
- 对具有高功率密度的绿色材料对储能应用的兴趣.
研究的目的:
- 评估超级电容器的电化学和电性能,使用棕核的活性炭.
- 研究不同激活剂 (KOH和ZnCl2) 和酸修饰的影响.
主要方法:
- 从棕核中制备了两种类型的活性炭,使用KOH和ZnCl2作为700°C的活性剂.
- 用酸对活性炭进行表面修饰.
- 使用活性碳电极的硬币电池超级电容器的电化学表征.
- 通过串行和并行安排进行电气表征.
主要成果:
- 用KOH活性炭的特异面积是最高的 (1181 m2 g-1).
- 用KOH激活碳电极表现出优越的电化学行为,平均重力学电容为56. ± 9.2 Fg-1.1 的时间.
- 具体的能量和功率密度达到2.6 Wh kg-1和475 W kg-1 (平行),以及1.8 Wh kg-1和353 W kg-1 (系列).
结论:
- 棕核外衍生的活性碳,特别是当用KOH激活时,显示出对高性能超级电容器的重大承诺.
- 该材料的特性支持其在可持续能源存储技术中的使用.
- 优化的激活和修改方法可以提高实际应用的能量和功率密度.
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