Wentao Yu, Ziqing Wang, Jiahui Lin, Yongshuang Xiao, Liying Zhu, Jintao Huang, Aricson Pereira, Zhanhu Guo and Yonggang Min
1 School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China
2 Engineered Multifunctional composites (EMC) nanotech LLC, Knoxville, TN, 37996, United States
3 Department of Mechanical and Civil Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
Rose-derived porous carbon and Cobalt(Co)/Nickel(Ni) nanoparticles composite absorbers (RC/Co and RC/Ni) were synthesized adopting a simple impregnation method and one-step carbonization method. The special array structure on the surface of rose petals remains intact even after carbonization, and the wrinkles and porous structure inside serves to reduce the material’s density and increase the number of interfaces. Besides, the in Situ Fabricated Co and Ni magnetic nanoparticles were employed to introduce magnetic loss ability. At a matching thickness of 1.58 mm, RC/Co exhibits a minimum reflection loss (RLmin) of -47.89 dB at 13.60 GHz and an effective attenuation bandwidth (EABW) of 4.08 GHz, while RC/Ni achieves a RLmin value of -45.36 dB at 12.88 GHz and an EABW of 3.02 GHz at thickness of 1.56 mm. Due to the low-cost biomass materials and simple preparation methods, RC/Co and RC/Ni could serve as a model for synthesizing other high-performance absorbers due to their environmental friendliness, convenience of synthesis, and good EMW attenuation capability.
Received: 04 Mar 2024
Revised: 18 Mar 2024
Accepted: 20 Mar 2024
Published online: 21 Mar 2024
Article type:
Research Paper
DOI:
10.30919/es1113
Volume:
30
Article :
1113
Citation:
Engineered Science, 2024, 30, 1113
Permissions:
Copyright
Number of downloads:
506
Citation Information:
30
Description:
Rose-derived/magnetic nanocomposites were prepared and demonstrated high-quality electromagnetic wav....
Rose-derived/magnetic nanocomposites were prepared and demonstrated high-quality electromagnetic wave absorption.
Supplementary Information:
This article is cited by 30 publications.
This article is cited by 30 publications.
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