静电诱导缺陷极化增强型PBA/MXene异质结构的双耦合界面以提升电磁波吸收性能

贾志卿 宫新菊 兰笛 孙环环 刘雨 高玉萍 郭思瑶

引用本文: 贾志卿, 宫新菊, 兰笛, 孙环环, 刘雨, 高玉萍, 郭思瑶. 静电诱导缺陷极化增强型PBA/MXene异质结构的双耦合界面以提升电磁波吸收性能[J]. 物理化学学报, 2026, 42(8): 100312. doi: 10.1016/j.actphy.2026.100312 shu
Citation:  Zhiqing Jia, Xinju Gong, Di Lan, Huanhuan Sun, Yu Liu, Yuping Gao, Siyao Guo. Electrostatically induced dual-coupled interfaces of defect polarization enhanced PBA/MXene heterostructures for boosting electromagnetic wave absorption[J]. Acta Physico-Chimica Sinica, 2026, 42(8): 100312. doi: 10.1016/j.actphy.2026.100312 shu

静电诱导缺陷极化增强型PBA/MXene异质结构的双耦合界面以提升电磁波吸收性能

    通讯作者: Email: guosy@qut.edu.cn (郭思瑶)
摘要: 普鲁士蓝类似物(PBAs)因其可调控的配位框架和本征多孔性备受关注,但其结构稳定性不足与衰减能力有限制约了PBA衍生电磁波吸收体的性能。金属-碳异质结构体系可显著改善这些缺陷,但精确构建多组分异质界面并调控磁畴行为仍具挑战性。在此,我们提出一种静电场自辅助策略,成功构建双金属PBA衍生的多类型碳包覆/MXene (NiCo@C@C/MXene)异质结构,其精确设计的多组分界面形成静电诱导双耦合界面网络,成为增强介电损耗的核心机制。MXene纳米片和聚多巴胺(PDA)涂层协同强化PBA衍生碳基体,构建多维导电通路,而多类型碳基体、缺陷孔隙和磁性纳米颗粒共同增强了界面极化和磁损耗。这种协同效应实现了优化的阻抗匹配、强衰减特性和宽频吸收性能,使该材料在仅1.57 mm的超薄厚度下实现了−58.51 dB的最小反射损耗(RL)和5.44 GHz的有效吸收带宽(EAB)。雷达散射截面模拟进一步揭示了强化电磁波耗散的磁畴耦合网络。该研究为突破PBA材料本征局限和界面工程难题提供了新思路,为下一代高性能电磁波衰减材料开辟了路径。

English

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  • 发布日期:  2026-08-15
  • 收稿日期:  2026-03-06
  • 接受日期:  2026-04-25
  • 修回日期:  2026-04-23
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