A lightweight and flexible CNT/Fe3O4 composite with high electromagnetic interference shielding performance

被引：11
|
作者：
Chao, Zhuo [1 ,2 ]
Yu, Yingying [2 ]
Lei, Fang [1 ]
Hu, Dongmei [2 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
[2] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Adv Mat Div, 398 Ruoshui Rd, Suzhou 215123, Peoples R China
来源：
CARBON LETTERS | 2021年 / 31卷 / 01期
基金：
美国国家科学基金会;
关键词：
Electromagnetic interference shielding; Carbon nanotube; Ferroferric oxide;
D O I：
10.1007/s42823-020-00152-y
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Lightweight and flexible electromagnetic interference (EMI) shielding materials are in great demand for wearable EMI device. In the present work, lightweight and flexible carbon nanotube (CNT)/ferroferric oxide (Fe3O4) composite film was made through a feasible chemical vapor deposition process for CNT film synthesis, followed by a hydrothermal reduction process for Fe3O4 coating. In the as-prepared composite, CNT film and Fe3O4 particles work as conductive skeleton and strong magnetic particle, respectively. The as-prepared composite film shows a novel EMI shielding effectiveness (SE) of 91 dB in the X-band, a small thickness of 0.09 mm and a low density of 0.86 g/cm(3), which is superior to most of the carbon-based EMI materials.
引用
收藏
页码：93 / 97
页数：5
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