工程协调调制的二元合金MOF纳米架构用于增强超级电容器性能
Jaya Shree Korapatti Selamayya1, Ajay Rakkesh Rajendran2, Balakumar Subramanian1
1National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai 600 025, India.
Langmuir : the ACS journal of surfaces and colloids
|September 19, 2025
概括
对超级电容器的协调调制优化-金属有机框架 (MOFs). 在pH 6.0下合成的NiCo MOF显示了增强的电容和能量密度,证明了对储能有很大的希望.
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
- 纳米技术 纳米技术
背景情况:
- 超级电容器需要先进的电极材料来改善能量存储.
- 金属有机框架 (MOF) 为电化学应用提供可调节的性能.
- 由于它们的协同效应,- (NiCo) 双金属MOF具有前景.
研究的目的:
- 研究协调调制 (CM) 对尼科MOF合成和电化学性能的影响.
- 了解pH在控制尼科MOF结构,性能和超级电容器效率中的作用.
- 为高性能超级电容应用优化尼科MOF.
主要方法:
- 在不同pH值下使用协调调制策略合成尼可MOFs.
- 合成MOF的结构性,纹理性和表面电荷性质的描述.
- 在超级电容电极和不对称装置中对NiCo MOF进行电化学测试.
主要成果:
- 在不同pH水平的协调调制产生了具有不同形态和特性的NiCo MOF.
- 在pH 6.0下合成的尼科MOF在1A/g下表现出576.4F/g的特定电容.
- 使用pH 6.0的非对称超级电容器装置尼科MOF显示出优异的能量密度 (20.4Wh/kg) 和稳定性 (在2500个周期内保持87.50%).
结论:
- 协调调制是为超级电容量定制尼科MOF属性的关键策略.
- pH 在pH诱导的表面电荷效应中起着关键作用,影响材料性能.
- 在pH 6.0下合成的NiCo MOF是先进的储能应用的非常有前途的候选者.
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