具有低结晶度的NiCo-LDH的尖端效应,用于增强状超级电容器的能量存储性能
Yongtao Yu1, Yongping Liao1, Jiangning Fan1
1School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, China.
Journal of colloid and interface science
|October 19, 2024
概括
研究人员开发了高性能线形超级电容器,在碳纳米管线上使用纳米针尼克尔层双氧化物 (NiCo-LDHs). 这些灵活的设备显示了可穿戴式能源存储的巨大潜力.
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
- 储能 储能 储能 储能 储能 储能
背景情况:
- 层状双氧化物 (LDH) 对超级电容器来说是有前途的.
- 使用LDH开发高性能线形超级电容器 (YSC) 是一个挑战.
研究的目的:
- 为了制造和评估NiCo-LDHs与各种形态在YSCs的功能棉线上.
- 了解YSC中不同NiCo-LDH形态的电化学性能.
主要方法:
- 在碳纳米管 (CNT) 功能化的棉花线上培养NiCo-LDH (纳米针,纳米板,复合材料,纳米花) 的联合沉技术.
- 柔性准固态对称YSC的制造.
- 用有限元模拟来研究电荷积累和氧化还原反应.
主要成果:
- 带有纳米针 NiCo-LDH 的线显示出优越的面积容量 (124.27 mF cm−2) 和能量密度 (39.4 μWh cm−2).
- 纳米针的较低晶度NiCo-LDHs增强了尖端的电荷积累,促进了氧化还原反应.
- 模拟证实了纳米针形态的尖端增强的电荷积累,导致更高的电容.
结论:
- 在CNT上使用的纳米针NiCo-LDH对于高性能YSC是有效的.
- 开发的YSC适用于可扩展的可穿戴式储能应用.
- 这项研究为先进的YSC提供了一种高效的制造方法.
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