化工学报 ›› 2025, Vol. 76 ›› Issue (7): 3719-3732.DOI: 10.11949/0438-1157.20241516

• 材料化学工程与纳米技术 • 上一篇    下一篇

异质结构MoS2/RGO/NiFe2O4复合材料的构筑及电磁波吸收性能研究

郭铮铮1,2(), 赵一丹1, 王辅强1, 裴璐1, 靳彦岭1, 任芳1,2, 任鹏刚1()   

  1. 1.西安理工大学印刷包装与数字媒体学院,陕西 西安 710048
    2.四川大学高分子材料工程国家重点实验室,四川 成都 610065
  • 收稿日期:2024-12-30 修回日期:2025-03-02 出版日期:2025-07-25 发布日期:2025-08-13
  • 通讯作者: 任鹏刚
  • 作者简介:郭铮铮(1995—),男,博士,讲师,guozz@xaut.edu.cn
  • 基金资助:
    国家自然科学基金项目(52102303);陕西省自然科学基础研究计划项目(2024JC-YBMS-275);陕西省教育厅一般专项科学研究计划项目(自然专项)(24JK0568);高分子材料工程国家重点实验室开放课题基金项目(sklmpe2024-1-16);西安市科技计划项目(24GXFW0059);西安理工大学博士科研启动基金项目(108/451123004);西安理工大学研究生科研资助基金项目(108/252082401)

Construction and electromagnetic wave absorption properties of MoS2/RGO/NiFe2O4 composites with heterogeneous architecture

Zhengzheng GUO1,2(), Yidan ZHAO1, Fuqiang WANG1, Lu PEI1, Yanling JIN1, Fang REN1,2, Penggang REN1()   

  1. 1.Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, Shaanxi, China
    2.State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, China
  • Received:2024-12-30 Revised:2025-03-02 Online:2025-07-25 Published:2025-08-13
  • Contact: Penggang REN

摘要:

随着现代无线通信技术的蓬勃发展和广泛应用,自由空间充斥着大量的电磁波,造成严重的电磁辐射污染。开发强电磁波吸收能力的复合材料是解决这一问题常用且有效的策略。为此,通过简单的两步溶剂热法制备了异质结构MoS2/RGO/NiFe2O4(MRN)复合材料。MoS2和NiFe2O4的引入不仅有效缓解了RGO高电导率造成的阻抗失配,而且丰富了电磁波损耗机制。改善的阻抗匹配和丰富的电磁波损耗机制的协同作用使MRN3复合材料在石蜡基体中填充比为15%(质量分数)时,实现了强的最小反射损耗(-54.13 dB)和宽的有效吸收带宽(6.27 GHz)。此外,雷达散射截面模拟有力证实了MRN复合材料在实际应用中的有效性。

关键词: 复合材料, 合成, 界面, 多尺度, 异质结构, 电磁波吸收

Abstract:

With the vigorous development and widespread application of modern wireless communication technology, free space is filled with a large number of electromagnetic waves, causing serious electromagnetic radiation pollution. Developing composite materials with strong electromagnetic wave absorption ability is a common and effective strategy to solve this problem. Herein, the MoS2/RGO/NiFe2O4 (MRN) composites with heterogeneous architecture were prepared by a facile two-step solvothermal method. The incorporation of MoS2 and NiFe2O4 not only effectively alleviates the impedance mismatch caused by the high conductivity of RGO, but also enriched the EMW loss mechanism. The synergistic effect of improved impedance matching and rich EMW loss mechanisms enables the MRN3 composite to achieve strong minimum reflection loss (-54.13 dB) and wide effective absorption bandwidth (6.27 GHz) at a low filling ratio of 15%(mass). In addition, radar cross section simulation strongly confirms the effectiveness of the prepared MRN composites used in practical applications.

Key words: composites, synthesis, interface, multiscale, heterogeneous architecture, electromagnetic wave absorption

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