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石墨氧化物类半孔N-碳由聚胺-共价有机框架模板衍生的合成和电气性质

Atsushi Nagai¹, Radian Febi Indrawan², Arthisree Devendran¹

¹Next-Generation Energy Systems Group, Centre of Excellence ENSEMBLE3 sp. z o.o., Wolczynska 133, Warsaw 01-919, Poland.

|September 15, 2025

概括

这项研究将多孔有机聚合物 (PI-COFs) 碳化,以产生添加碳,用于储能. 优化PI-TAPB-PMDI COF-600的碳化产生了卓越的导电性和多孔性,显示了先进能源应用的前景.

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
纳米技术纳米技术

背景情况:

多孔有机聚合物 (PI-COF) 为先进材料提供可调节的结构.
开发高效的储能材料需要优化导电性和多孔性.
由于其增强的特性,添加碳对电化学应用具有前景.

研究的目的:

从两个PI-COF中合成和描述添加的多孔碳.
研究碳化时间和温度对材料性质和性能的影响.
评估这些材料在储能应用中的潜力.

主要方法:

在高压下对PI-TAPA-PMDI和PI-TAPB-PMDI进行颗粒化.
在中在600°C的温度下进行碳化,持续时间不同 (2-50小时).
使用XRD,XPS,FTIR,拉曼,BET和电化学阻抗光谱的表征.

主要成果:

碳化产生了添加剂,有缺陷的多孔碳,具有增强的电子导电性.
在50小时内碳化PI-TAPB-PMDI COF-600表现出明显较低的电阻 (Rs ≈ 14.14 Ω,Rct ≈ 61.66 Ω).
优化的碳化使BET表面积增加到510 m2g-1并促进了中性 (2.8 nm孔径大小).

结论:

PI-TAPB-PMDI COF-600,具有0.5%的和3.02 × 10−2 S cm−1的导电性,显示出储能的潜力.
扩展碳化增强了电子运输和与氧化还原系统的相互作用.
这些功能化碳是石墨氧化物的有希望的替代品,用于高性能储能.

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