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

被引：31

作者：

Zhang, Yifan ^{[1
]}

Cai, Rui ^{[2
]}

Wang, Dashuang ^{[1
]}

Li, Kailin ^{[1
]}

Sun, Qing ^{[3
]}

Xiao, Yuntao ^{[1
]}

Teng, Hao ^{[1
]}

Huang, Xiaohan ^{[4
]}

Sun, Tao ^{[4
]}

Liu, Zhaohui ^{[5
]}

Yao, Kexin ^{[5
]}

Zhang, Yuxin ^{[1
]}

Yang, Pingan ^{[2
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

[2] Chongqing Univ Posts & Telecommun, Sch Automat, Chongqing 400065, Peoples R China

[3] Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400045, Peoples R China

[4] Army Logist Univ PLA, Dept Mil Facil, Chongqing 401311, Peoples R China

[5] Chongqing Univ, Inst Adv Interdisciplinary Studies, Sch Chem & Chem Engn, Multiscale Porous Mat Ctr, Chongqing 400045, Peoples R China

来源：

MOLECULES | 2022年 / 27卷 / 03期

基金：

中国国家自然科学基金;

关键词：

diatomite; Co2SiO4; electromagnetic wave absorption; nanomaterial; MORPHOLOGY;

D O I：

10.3390/molecules27031055

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

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.

引用

页数：10

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