Lightweight, Low-Cost Co2SiO4@diatomite Core-Shell Composite Material for High-Efficiency Microwave Absorption

Autor: Yifan Zhang, Rui Cai, Dashuang Wang, Kailin Li, Qing Sun, Yuntao Xiao, Hao Teng, Xiaohan Huang, Tao Sun, Zhaohui Liu, Kexin Yao, Yuxin Zhang, Pingan Yang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Molecules, Vol 27, Iss 3, p 1055 (2022)
Druh dokumentu: article
ISSN: 27031055
1420-3049
DOI: 10.3390/molecules27031055
Popis: The porous and biomimetic cobalt silicate@diatomite (Co2SiO4@diatomite) was successfully synthesized by a two-step method, including the hydrothermal method and calcination to improve the electromagnetic wave absorption property. Different hydrothermal times were well-tuned for Co2SiO4@diatomite composites with different loadings of Co2SiO4. Interestingly, the Co2SiO4@diatomite composites (6 h, 25 wt%) had a smaller minimum reflection loss. Moreover, the minimum reflection loss (RLmin) could reach −12.03 dB at 16.64 GHz and the matched absorber thickness was 10 mm, while the effective absorption bandwidth (EAB, RL ≤ −10 dB) could be 1.92 GHz. In principle, such findings indicate that Co2SiO4@diatomite nanocomposites could be a promising candidate for high-efficiency microwave absorption capability.
Databáze: Directory of Open Access Journals
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