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构建具有三核铜集群的金属共价有机框架,用于高效的三电纳米发电机

Huayun Ma¹, Qiang Zhang¹, Zhiqiang Zhu¹

¹Henan Key Laboratory of Functional Salt Materials, Center for Advanced Materials Research, School of Materials Electronics and Energy Storage, Zhongyuan University of Technology, Zhengzhou, 450007, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|April 22, 2025

概括

基于金属集群的共价有机框架 (MCOF) 用于创建高性能 triboelectric 纳米发电机 (TENG). 这些基于MCOF的材料显示了可调节的功能,用于增强 triboelectric输出和运动传感应用.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
收集能源收集能源

背景情况:

基于金属集群的共价有机框架 (MCOF) 在各种应用中显示出前景.
作为 triboelectric 纳米发电机 (TENG) 的 triboelectric 材料,MCOF 尚未得到充分的探索.
MCOF对 triboelectric 输出的影响需要进行系统的研究.

研究的目的:

为TENG应用合成和研究具有不同孔径的MCOF.
探索使用MCOFs作为填充物在甲基纤维素 (MC) 矩阵中的 triboelectric 层.
优化MCOF-MC复合膜,以提高 triboelectric性能和运动传感.

主要方法:

使用铜循环三核单位合成具有不同孔径 (2.1,3.4,4.2 nm) 的MCOF (Cu3-S-MCOF,Cu3-M-MCOF,Cu3-L-MCOF).
通过将MCOF纳入甲基纤维素 (MC) 矩阵来制造复合薄膜.
使用凯尔文探针力显微镜 (KPFM) 分析表面电荷密度的特征.
优化MCOF:MC混合比率,以改善 triboelectric 输出.

主要成果:

具有可调节孔径的大小的MCOF已成功合成.
MCOF-MC复合膜表现出可控制的表面电荷密度.
采用10wt%Cu3-M-MCOF@MC的优化TENG在5Hz时实现了高输出电流 (54.8μA) 和电压 (532.9V).
基于MCOF的TENG证明了其作为监控人类运动的传感器的有效性.

结论:

在高性能TENG应用中,MCOF是可行的和有前途的材料.
调整MCOF孔隙结构并优化复合材料的配方,可以显著提高 triboelectric 输出.
这项研究为开发基于MCOF的功能材料开辟了新的途径,用于能源采集和传感.

关键词:

铜 - 循环三核单位.能源转换转换能量的转换金属-共价有机框架 triboelectric纳米发电机的使用情况

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