TCF/Co@NC复合纳米纤维的可控制备及其微波吸收性能

doi:10.1016/j.actphy.2026.100306

物理化学学报 >> 2026, Vol. 42 >> Issue (11): 100306.doi: 10.1016/j.actphy.2026.100306

TCF/Co@NC复合纳米纤维的可控制备及其微波吸收性能

石章琳¹, 修涛¹, 毛新蒙^1,2, 吴建锋¹, 张宝亮^1,3

1 西北工业大学化学与化工学院, 陕西西安 710072;
2 西北工业大学西安功能有机多孔材料重点实验室, 陕西西安 710072;
3 蓝晓科技新材料股份有限公司陕西功能高分子吸附分离工程技术研究中心, 陕西西安 710076

收稿日期:2026-03-12 修回日期:2026-04-14 录用日期:2026-04-16 发布日期:2026-09-29
通讯作者: 张宝亮 E-mail:blzhang@nwpu.edu.cn
基金资助:
本研究由国家自然科学基金(22375166)；陕西省自然科学基础研究计划(2024JC-JCQN-44)及陕西省创新能力支撑计划-科技创新团队项目(2025RS-CXTD-024)资助

Controllable construction and microwave absorption properties of TCF/Co@NC composite nanofibers

Zhanglin Shi¹, Tao Xiu¹, Xinmeng Mao^1,2, Jianfeng Wu¹, Baoliang Zhang^1,3

1 School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, Shaanxi Province, China;
2 Xi'an Key Laboratory of Functional Organic Porous Materials, Northwestern Polytechnical University, Xi'an 710072, Shaanxi Province, China;
3 Shaanxi Engineering and Research Center for Functional Polymers on Adsorption and Separation, Sunresins New Materials Co. Ltd., Xi'an 710076, Shaanxi Province, China

Received:2026-03-12 Revised:2026-04-14 Accepted:2026-04-16 Published:2026-09-29
Contact: Baoliang Zhang E-mail:blzhang@nwpu.edu.cn

1. ACTPHY-2026.100306-SI-4p.pdf(1713KB)

摘要/Abstract

摘要： 将磁性纳米颗粒复合到一维(1D)多孔碳基质上具有重要研究价值。该策略对于制备高效且功能协同的微波吸收体至关重要。本工作通过超交联聚合从管状多孔纤维衍生出一维碳材料，以此为前驱体构建了一系列涂覆Co/Zn金属有机框架(MOFs)的复合纤维(C-CCNFs@Co/Zn-MOFs)。优化了包覆工艺，揭示了Zn²⁺离子对MOF晶粒尺寸的调控机制。后续碳化处理获得磁性氮掺杂碳包覆钴/管状碳纳米纤维(TCF/Co@NC)。该TCF/Co@NC具有多孔核壳结构和一维形貌，富含异质界面。这些特性有利于构建导电损耗网络并产生多重反射，形成强能量耗散能力。通过调节Co/Zn摩尔比，可优化复合纤维的电磁参数，从而调控其微波吸收性能。所制备的NCT-3 (Co/Zn=1 : 1)在2.7 mm厚度处获得-55.5 dB的最小反射损耗(RL_min)；而NCT-2 (Co/Zn=3 : 1)在2.4 mm厚度下展现出7.3 GHz的有效吸收带宽(EAB)。本研究为设计高性能磁性碳基微波吸收材料提供了普适且可借鉴的方法论。

关键词: 超交联聚合物, 管状纤维, 金属有机框架, 磁性材料, 微波吸收剂

Abstract: Compositing magnetic nanoparticles onto one-dimensional (1D) porous carbon matrices is of significant research value. This strategy is essential for fabricating high-efficiency and functionally synergistic microwave absorbers. In this work, 1D carbon materials are derived from tubular porous fibers via hyper-crosslinked polymerization. These materials serve as precursors to construct a series of composite fibers coated with Co/Zn metal-organic frameworks (C-CCNFs@Co/Zn-MOFs). The coating process is optimized, and the regulatory mechanism of Zn²⁺ ions on MOF grain size is revealed. Subsequent carbonization yields magnetic nitrogen-doped carbon-encapsulated cobalt/tubular carbon nanofibers (TCF/Co@NC). The TCF/Co@NC possesses a porous core-shell architecture and 1D morphology with abundant hetero-interfaces. These features facilitate the establishment of conductive loss networks and multiple reflections, resulting in strong energy dissipation capabilities. By adjusting the Co/Zn molar ratio, the electromagnetic parameters of the composite fibers can be optimized, thereby modulating their microwave absorption performance. The as-prepared NCT-3 (Co/Zn = 1 : 1) achieves a minimum reflection loss (RL_min) of -55.5 dB at a thickness of 2.7 mm. Meanwhile, NCT-2 (Co/Zn = 3 : 1) exhibits an effective absorption bandwidth (EAB) of 7.3 GHz at 2.4 mm. This study provides a versatile and referable methodology for designing high-performance magnetic carbon-based microwave absorbing materials.

Key words: Hyper-cross-linked polymers, Tubular fibers, Metal-organic frameworks (MOFs), Magnetic materials, Microwave absorbers

石章琳, 修涛, 毛新蒙, 吴建锋, 张宝亮. TCF/Co@NC复合纳米纤维的可控制备及其微波吸收性能[J]. 物理化学学报, 2026, 42(11), 100306. doi: 10.1016/j.actphy.2026.100306

Zhanglin Shi, Tao Xiu, Xinmeng Mao, Jianfeng Wu, Baoliang Zhang. Controllable construction and microwave absorption properties of TCF/Co@NC composite nanofibers[J]. Acta Phys. -Chim. Sin. 2026, 42(11), 100306. doi: 10.1016/j.actphy.2026.100306

链接本文: https://www.whxb.pku.edu.cn/CN/10.1016/j.actphy.2026.100306

https://www.whxb.pku.edu.cn/CN/Y2026/V42/I11/100306

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TCF/Co@NC复合纳米纤维的可控制备及其微波吸收性能

Controllable construction and microwave absorption properties of TCF/Co@NC composite nanofibers

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