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构建富硒空位的SiC@CoSe2−x纳米复合材料以增强偶极和界面极化促进电磁波吸收

田忠宁 ,  刘金源 ,  张猛 ,  贾千千 ,  刘名博 ,  李镇江 ,  王婷 ,  赵文婕 ,  马东威 ,  齐学礼

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引用本文: 田忠宁, 刘金源, 张猛, 贾千千, 刘名博, 李镇江, 王婷, 赵文婕, 马东威, 齐学礼. 构建富硒空位的SiC@CoSe2−x纳米复合材料以增强偶极和界面极化促进电磁波吸收[J]. 物理化学学报, 2026, 42(8): 100323. doi: 10.1016/j.actphy.2026.100323 shu
Citation:  Zhongning Tian, Jinyuan Liu, Meng Zhang, Qianqian Jia, Mingbo Liu, Zhenjiang Li, Ting Wang, Wenjie Zhao, Dongwei Ma, Xueli Qi. Constructing selenium-vacancy-rich SiC@CoSe2−x nanocomposites to boost dipole and interfacial polarization for electromagnetic wave absorption[J]. Acta Physico-Chimica Sinica, 2026, 42(8): 100323. doi: 10.1016/j.actphy.2026.100323 shu

构建富硒空位的SiC@CoSe2−x纳米复合材料以增强偶极和界面极化促进电磁波吸收

  • 1.

    青岛科技大学材料科学与工程学院, 山东 青岛 266042

  • 2.

    青岛科技大学化工学院, 山东 青岛 266042

  • 3.

    青岛科技大学中德科技学院, 山东 青岛 266061

  • 4.

    湖北汽车工业学院汽车材料学院, 湖北 十堰 442002

  • 5.

    山东工业陶瓷研究设计院有限公司, 山东 淄博 255000

    • 通讯作者: Email: mengzhang@qust.edu.cn (张猛); zhenjiangli@qust.edu.cn (李镇江); qi-xl@163.com (齐学礼)
摘要: 材料掺杂与缺陷工程是调控电磁波吸收性能的两种有效策略。本研究针对碳化硅(SiC)纳米线存在的阻抗匹配失配与吸波能力较差的问题，通过水热合成结合一步煅烧法，成功将氧化钴(Co3O4)纳米颗粒锚定在SiC纳米线表面。随后通过二次水热策略及后续还原处理，将合成的Co3O4分别转化为SiC@CoSe2和SiC@CoSe2−x复合材料，使SiC@CoSe2−x纳米复合材料展现出优异的电磁波吸收性能。在导电损耗、极化损耗与磁损耗的协同作用下，优化后的纳米复合材料在1.9 mm厚度处取得−50.23 dB的最小反射损耗(RLmin)，并在2.03 mm厚度下实现7.84 GHz的有效吸收带宽(EAB)，覆盖部分X波段及整个Ku波段。通过系统阐释电磁衰减机制，揭示了CoSe2基纳米材料在电磁波吸收应用中的广阔前景。

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  • 发布日期:  2026-08-15
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