物理化学学报 >> 2026, Vol. 42 >> Issue (9): 100273.doi: 10.1016/j.actphy.2026.100273

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花瓣状WS2/MnFe2O4/GNs复合材料展现出高效电磁波吸收性能

朱耿素2,3, 马媛媛2, 孙承志2, 李梦婷2, 王春雨1,2,*(), 钟博2,*(), 夏龙2,*()   

  1. 1 哈尔滨工业大学(威海)材料结构精密焊接与连接全国重点实验室, 山东 威海 264209
    2 哈尔滨工业大学(威海)材料科学与工程学院, 山东 威海 264209
    3 西北工业大学化学与化工学院, 陕西 西安 710072
  • 收稿日期:2026-01-25 修回日期:2026-02-26 录用日期:2026-03-01 发布日期:2026-07-03
  • 通讯作者: Email: wcyadam@126.com (王春雨)zhongbo@hit.edu.cn (钟博)xialong@hit.edu.cn (夏龙)

Preparation and absorption properties of petal-clustered WS2/MnFe2/O4/GNs composite materials

Gengsu Zhu2,3, Yuanyuan Ma2, Chengzhi Sun2, Mengting Li2, Chunyu Wang1,2,*(), Bo Zhong2,*(), Long Xia2,*()   

  1. 1 State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology (Weihai), Weihai 264209, Shandong Province, China
    2 School of Materials Science and Engineering, Harbin Institute of Technology (Weihai), Weihai 264209, Shandong Province, China
    3 School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, Shaanxi Province, China
  • Received:2026-01-25 Revised:2026-02-26 Accepted:2026-03-01 Published:2026-07-03
  • Contact: Email: wcyadam@126.com (Chunyu Wang)zhongbo@hit.edu.cn (Bo Zhong)xialong@hit.edu.cn (Long Xia)

摘要:

异质界面的合理构造是改善材料吸波性能一种有效的方法。本研究采用简便的两步水热法合成花瓣状WS2/MnFe2O4/GNs复合材料(其中GNs为石墨烯)。WS2均匀包覆在多面体MnFe2O4颗粒上附着于GNs表面,形成多层三维异质结构。通过调节MnFe2O4/GNs的负载量,可有效调控三元复合材料的电磁波吸收特性。当负载量为20%时,RLmin达−44.50 dB,最大有效吸收带宽达4.08 GHz。这归功于花状WS2、多面体MnFe2O4与GNs共同构成的多级微结构,多层结构的存在使得电磁波的反射路径更加丰富,通过多次反射增强能量耗散,另一方面,它改善了材料的阻抗匹配,并强化了磁损耗与介质损耗的协同效应。

关键词: WS2, 三维网状传导, 微波吸收, MnFe2O4/GNs

Abstract:

Rational construction of heterointerfaces represents an effective strategy for exploring high-performance electromagnetic wave absorption. This study employs a simple two-step hydrothermal method to synthesize petal-clustered WS2/MnFe2O4/GNs (where GNs denotes graphene) hybrid materials. WS2 uniformly coats the polyhedral MnFe2O4 particles attached to the GNs surface, forming a multi-layer three-dimensional hetero-structure. By adjusting the MnFe2O4/GNs loading, the electromagnetic wave absorption properties of the ternary hybrid material can be effectively tuned. At a MnFe2O4/GNs loading of 20%, the minimum reflection loss reaches −44.50 dB, with a maximum effective absorption bandwidth of 4.08 GHz. This is attributed to the multilevel microstructure formed by flower-like WS2, polyhedral MnFe2O4, and GNs.

Key words: WS2, 3D mesh conduction, Microwave absorption, MnFe2O4/GNs