期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 579, 期 -, 页码 733-740出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2020.06.123
关键词
Electromagnetic wave; Layered double hydroxides; Impedance matching; Interfacial polarization
资金
- National Science Foundation of China [51872238, 21806129]
- Fundamental Research Funds for the Central Universities [3102018zy045, 3102019AX11]
- Fund of the State Key Laboratory of Solidification Processing in NPU [11972303]
- Natural Science Basic Research Plan in Shaanxi Province of China [2020JM-118, 2017JQ5116]
Transition metals and carbon materials are known as electromagnetic wave (EMW) nemesis, which can effectively attenuate EMW in the 2-18 GHz frequency band. Herein, three typical transition metal (Fe, Co, Ni) are freely combined into three layered double hydroxides (LDHs) through hydrothermal method and successfully grown in situ on the surface of short carbon fibers (SCFs). The SEM images show that although the three LDHs (CoNi-LDHs, FeNi-LDHs and FeCo-LDHs) are all sheet-like structures, their respective morphologies are completely different and each has its own merits. After calcination treatment at 500 degrees C, their distinct morphologies are basically retained, while the EMW absorption properties are greatly improved dramatically. Their effective absorption bandwidth (f(e)) (RL <= -10 dB) reached 3.68 GHz, 1.68 GHz and 4.48 GHz at thicknesses of 2.2 mm, 2.2 mm and 2.0 mm, respectively. As an important transition metal-based material, the exploration of LDHs in EMW absorption has just begun. (C) 2020 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据