Fabricating FeS2 and CuFeS2 microspheres embedded into biomass derived porous carbon with excellent microwave absorption

被引：11

作者：

Niu, Dan ^{[1
]}

Liu, Yijun ^{[1
,2
]}

Xue, Qunhu ^{[1
]}

Wu, Zhihong ^{[1
]}

Yao, Cheng ^{[1
]}

Guo, Xinyu ^{[1
]}

Ren, Anwen ^{[1
]}

Li, Peng ^{[3
]}

机构：

[1] Xian Univ Architecture & Technol, Coll Mat Sci & Engn, Xian 710055, Peoples R China

[2] Monalisa Grp Co Ltd, Guangdong Prov Key Lab Large Ceram Plates, Foshan 528211, Peoples R China

[3] Shaanxi Huaqin Technol Ind Co Ltd, Xian 710055, Peoples R China

来源：

MATERIALS TODAY COMMUNICATIONS | 2024年 / 38卷

基金：

中国国家自然科学基金;

关键词：

Electromagnetic wave absorption; Porous carbon; Electromagnetic coupling; FeS; 2; nanoparticles; CuFeS; MODULATION; ABSORBER; BAND;

D O I：

10.1016/j.mtcomm.2024.108100

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The design of carbon magnetic matrix nanocomposites with synergistic dielectric and magnetic losses is a significant research hotspot issue of wave-absorbing materials. In this paper, FeS2-CuFeS2@RPC composites were firstly fabricated by doping FeS2 on copper sulfide/rice husk derived porous carbon (Cu7.2S4@RPC), by controlling the amount of iron and sulfur sources. The study results indicate that the FeS2-CuFeS2@RPC-3 shows outstanding electromagnetic wave absorption performance. The minimum reflection loss (RLmin) of sample reaches -42.30 dB at 15.11 GHz (Ku band), corresponding to matching thickness of 1.7 mm, and the maximum effective absorption band (EAB) is 5.78 GHz at 1.9 mm. The synergistic interaction of the magnetic and dielectric components, which improves impedance matching, is responsible for this outstanding performance. The research of metal sulfide absorbing composite material scientific provide a new train of thought, and promote the development and application of metal sulfide composite absorbing materials.

引用

页数：12