Three-dimensional hierarchical structured Fe3O4/rGO/ZnO composite for effective electromagnetic wave absorption

被引：6
作者：
Ding, Juan [1 ]
Cheng, Ligang [2 ]
Zhuang, Xin [3 ]
机构：
[1] Zhongyuan Univ Technol, Sch Text, Zhengzhou 451191, Peoples R China
[2] Henan Univ Technol, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
[3] Henan Univ Engn, Sch Sci, Zhengzhou 451191, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2021年 / 127卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Three-dimensional structure; Composite; Magnetic nanoparticles; Electromagnetic wave absorption; MICROWAVE-ABSORPTION; FACILE SYNTHESIS; GRAPHENE; CARBON; PERFORMANCE; MICROSPHERES;
D O I：
10.1007/s00339-021-04625-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The three-dimensional Fe3O4/rGO/ZnO composite was successfully fabricated with a two-step method. Particularly, with rGO as the substrate, spindle-shaped ZnO nanorods and magnetic nanoparticles Fe3O4 are uniformly dispersed on the surface of rGO. Various equipments are used to test the structure, morphology and performance of the composite. Compared with single Fe3O4 nanoparticles and Fe3O4/rGO composite, the Fe3O4/rGO/ZnO composite has excellent EMWA performance. The minimum RL of the Fe3O4/rGO/ZnO composite is - 58.7 dB and the effective absorption bandwidth less than - 10 dB is 5.4 GHz (effective absorption bandwidth, RL <= - 10 dB, 12.6-18.0 GHz) with a thickness of 2 mm. It is believed that multi-layered hierarchical Fe3O4/rGO/ZnO composite can be used as an electromagnetic wave absorber and is a prospective material in these technical fields.
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页数：15
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