双金属站点使导电金属有机框架具有非常高的容量可用于透明的储能装置
Cui-E Zhao1, Shuaikang Wang1, Shaoqiang Chen1
1State Key Laboratory of Flexible Electronics (LoFE) & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications 9 Wenyuan Road Nanjing Jiangsu 210023 China.
Chemical science
|April 28, 2025
概括
研究人员开发了双金属位置的2D导电金属有机框架 (c-MOFs),用于透明的能量存储. 这项创新增强了离子和电荷传输,从而提高了柔性电子产品微型超级电容器的性能.
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:
- 由于其导电性和结构,二维 (2D) 导电金属有机框架 (c-MOF) 对透明的能量存储具有前景.
- 在c-MOF中实现电化学性能和光学透明度之间的平衡仍然是一个重大挑战.
研究的目的:
- 设计和制造双金属现场2D c-MOF,以提高灵活透明的储能器件的性能.
- 为了改善离子和电荷传输,在微型超级电容器中实现高效的法拉第反应.
主要方法:
- 使用双金属位点策略合成纳米化物组合的2DCuNi-HHTP (HHTP=2,3,6,7,10,11-hexahydroxy-triphenylene).
- 密度函数理论 (DFT) 计算,以了解Ni结合在离子插入和电子转移中的作用.
- 使用激光写字技术为透明的微型超级电容器制造数字间架构.
主要成果:
- CuNi-HHTP材料证明了改善的离子和电荷传输,促进了法拉第反应.
- DFT计算证实,Ni优化了K+插入,并增强了双金属位点的电子转移.
- 制造的微型超级电容器 (MSC) 实现了超过80%的光学传输率,28.94mF cm−2面积电容,1.45 μW cm−2能量密度,61.38 mW cm−2功率密度,以及超过5000个周期的稳定性.
结论:
- 2D c-MOF中的双金属位置策略有效地提高了电化学性能,同时保持了高光学透明度.
- 激光打印为制造透明电极架构提供了一种简单的方法.
- 这种方法为为下一代灵活透明便携式电子产品开发先进的2D c-MOF提供了可行的途径.
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