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用于空气电池的独立共价有机框架,具有高效的氧化导电

Ye Tian¹, Xiaobin Hui², Kaiyu Wang³

¹Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, 999077, China.

Angewandte Chemie (International ed. in English)

|November 18, 2024

概括

我们开发了新的酸共价有机框架 (COFs),用于高氧化物导电. 这些离子COF显示出对先进的储能设备如空气电池的前景.

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
聚合物化学聚合物化学

背景情况:

离子共价有机框架 (iCOF) 由于其有序结构,为能源应用提供可调节的特性.
开发高效的离子运输材料对于推进能量储存和转换装置至关重要.

研究的目的:

为增强氧化物导电开发基于的新型iCOF.
制造独立的iCOF膜并评估它们在电化学设备中的性能.

主要方法:

合成含有四级基的COFs.
使用蒸汽辅助方法制造独立的膜.
氧化导电性的表征和空气电池中的应用.

主要成果:

实现高氧导电性 (80°C时126mS/cm),具有较低的离子交换能力 (1.17mmol/g).
在高能量密度 (96.1mW/cm2) 和稳定的运行 (>2,300分钟) 的空气电池中成功应用.

结论:

酸COFs代表了一种有前途的新材料类,用于高效的离子运输.
开发的独立薄膜制造方法促进了基于COF的材料在电化学设备中的实际应用.

关键词:

共价有机框架是共价有机框架.独立的电影是独立的电影.氧化导电的导电方式气电池是气电池的一种.

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