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Updated: Feb 11, 2026

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分子工程调节的捐赠接受器1D共价有机框架与双极氧活性中心高性能有机离子电池阴极

Changyu Weng¹, Hongmei Yuan¹, Lungang Chen¹

¹Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|February 10, 2026

概括

本研究介绍了用于先进的能量存储的新型1D共价有机框架 (COF). 这些在碳纳米管上培养的工程化COF显示出下一代离子电池 (LIB) 的卓越稳定性和容量.

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:

共价有机框架 (COF) 是储能电极材料的有希望的材料.
传统的2D/3D COF 在性能上面临限制.
需要在下一代离子电池 (LIB) 中使用先进材料.

研究的目的:

合成具有双极氧化还原活性的新型1D型捐赠接受体 (D-A) COFs.
通过分子工程提高电子导电性和电化学性能.
为LIBs开发高性能有机阴极.

主要方法:

分子工程调整1DCOF的能量差距.
在碳纳米管 (CNT) 上 1D COF 的现场生长,用于树突型核心结构.
电化学特性 (容量,循环稳定性,速度能力).
用X射线光电子光谱 (XPS) 和密度函数理论 (DFT) 阐明机制.

主要成果:

合成了两种具有双极氧化还原行为的DA型1DCOF.
通过分子设计实现了增强的电子导电性.
开发了BF-4C/CNT复合材料,具有树突型核心外结构.
BF-4C复合材料表现出高容量 (329 mAh g^- ¹ 在100 mA g^- ¹) 和出色的速率能力 (保持100 mAh g^- ¹ 在5000 mA g^- ¹).
证明了特殊的长期循环稳定性.

结论:

分子工程1DCOF是LIBs的有效有机阴极材料.
在CNT上的现场增长最大限度地提高了活动现场的曝光和性能.
拟议的机制涉及将PF₆^-离子和离子储存在BF单元中.
这种方法为下一代能源存储提供了高性能,稳定的有机阴极的途径.

关键词:

共价有机框架 (COFs) 是一种共价有机框架.离子储存器 (LIB) 是一种阴极是指一个阴极.

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