物理化学学报 >> 2026, Vol. 42 >> Issue (9): 100320.doi: 10.1016/j.actphy.2026.100320

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金属@碳纳米片异质界面的协同工程用于双功能电磁波吸收与电化学储能

魏祺1,†, 仇亚茹2,†, 杨腾飞1,†, 蒋艺玲1, 朱韶涵1, 周杰1,*(), 刘聪聪3, 侯文杰4,*(), 王越5, 刘冬1,*()   

  1. 1 山东理工大学化学化工学院, 山东 淄博 255049
    2 菏泽医学专科学校药学与检验系, 山东 菏泽 274000
    3 淄博市检验检测计量研究总院, 山东 淄博 255000
    4 电子科技大学基础与前沿研究院, 四川 成都 610054
    5 湖北汽车工业学院汽车材料学院, 湖北 十堰 442002
  • 收稿日期:2026-04-01 修回日期:2026-05-04 录用日期:2026-05-08 发布日期:2026-07-03
  • 通讯作者: Email: tjuzhoujie@163.com (周杰)byhhwj@163.com (侯文杰)liu_dong@sdut.edu.cn (刘冬)
  • 作者简介:

    †这些作者对本工作做出了同等贡献

Synergistic engineering of heterointerfaces in metal@carbon nanosheets for bifunctional electromagnetic wave absorption and electrochemical energy storage

Qi Wei1, Yaru Qiu2, Tengfei Yang1, Yiling Jiang1, Shaohan Zhu1, Jie Zhou1,*(), Congcong Liu3, Wenjie Hou4,*(), Yue Wang5, Dong Liu1,*()   

  1. 1 School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong Province, China
    2 Department of Pharmacy and Laboratory Medicine, Heze Medical College, Heze 274000, Shandong Province, China
    3 Zibo Municipal General Institute of Inspection and Metrology, Zibo 255000, Shandong Province, China
    4 Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan Province, China
    5 School of Automotive Materials, Hubei University of Automotive Technology, Shiyan 442002, Hubei Province, China
  • Received:2026-04-01 Revised:2026-05-04 Accepted:2026-05-08 Published:2026-07-03
  • Contact: Email: tjuzhoujie@163.com (Jie Zhou)byhhwj@163.com (Wenjie Hou)liu_dong@sdut.edu.cn (Dong Liu)

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摘要：

无线通信与电子设备的普及加剧了电磁波污染与高性能储能需求的双重挑战。为解决这些问题，我们开发了一种简易策略制备金属(铜或钴)修饰的软碳多孔纳米片复合材料，该材料具有原位分散金属纳米颗粒的多级孔纳米片结构。系统表征证实了晶态铜相和钴相在碳基体中的成功复合。其中SC-N/Co复合材料展现出卓越的多功能性能：作为电磁波吸收体时，在1.5 mm的薄层厚度下可实现-39.10 dB的强反射损耗与6.16 GHz的宽频带吸收；作为锂离子电池负极时，则表现出高可逆容量、优异倍率性能及在1.0 A g-1电流密度下循环1000次后仍保持~325 mA h g-1的长周期稳定性。这种卓越性能源于界面极化增强、阻抗匹配优化及电荷传输动力学改善等多重协同效应。本研究为设计兼具电磁波调控与高效储能双功能的碳-金属复合材料提供了新思路。

关键词: 电磁波吸收, 太赫兹技术, 高熵MXenes, 介电损耗

Abstract:

The proliferation of wireless communication and electronic devices has intensified the dual challenges of electromagnetic (EM) wave pollution and the demand for high-performance energy storage. To address these issues, we develop a facile strategy to fabricate metal (Cu or Co)-decorated soft carbon porous nanosheet composites, which exhibit a hierarchical porous nanosheet structure with in situ dispersed metallic nanoparticles. Systematic characterization confirms the successful integration of crystalline Cu and Co phases within the carbon matrix. The SC-N/Co composite exhibits exceptional multifunctional performance. As an electromagnetic wave absorber, it achieves a strong reflection loss of -39.10 dB and a broad bandwidth of 6.16 GHz at a thin matching thickness of 1.5 mm. Concurrently, as a lithium-ion battery anode, it delivers high reversible capacity, rate capability, and outstanding long-term cycling stability of ~325 mA h g-1 after 1000 cycles at 1.0 A g-1. The superior performance is attributed to synergistic effects, including enhanced interfacial polarization, optimized impedance matching, and improved charge transport kinetics. This study provides a promising pathway for designing carbon-metal composites for dual-functional applications in EM wave management and efficient energy storage.

Key words: Electromagnetic wave absorbing, Terahertz technology, High-entropy MXenes, Dielectric loss