D-xylose-derived carbon microspheres modified by CuFe2O4 nanoparticles with excellent microwave absorption properties

• Published in: Journal of materials science. Materials in electronics 2021-11, Vol.32 (22), p.26726-26739
• Main Authors: Bai, Linghan, Xing, Honglong, Ji, Xiaoli, Yang, Ping
• Format: Article
• Language: English
• Subjects: Carbon; Characterization and Evaluation of Materials; Chemistry and Materials Science; Composite materials; Copper ferrite; Magnetic properties; Materials Science; Microspheres; Microwave absorption; Morphology; Nanoparticles; Optical and Electronic Materials; Xylose
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-021-07050-7

In this work, we studied the preparation and microwave absorption properties of D-xylose-derived carbon materials modified by CuFe 2 O 4 nanoparticles and discussed the influence of the addition amount of carbon materials. It was prepared with a simple hydrothermal method, and various methods are used to characterize its microscopic morphology, chemical structure and microwave absorption properties.Results show that the modification of copper ferrite nanoparticles is effective in mitigating polarization and magnetic losses, enhancing the microwave absorption properties of the samples and absorption curves of the composite materials change from a single peak to double peaks. Comparing all samples it can be concluded that the effective absorption bandwidth of CuFe 2 O 4 composite materials containing carbon microspheres (CuFe 2 O 4 /CMs-0.3) is 6.24 GHz. The minimum reflection loss (RL) is − 50.4 dB at 14.64 GHz. The thickness of the above corresponds to 2.5 mm. This work not only provides a reference method for the preparation of microwave absorbing materials but also contributes to the understanding of absorption mechanisms.