Tunable magnetic properties of Fe3O4/rGO/PANI nanocomposites for enhancing microwave absorption performance

被引：55
|
作者：
Ma, Yibing [1 ]
Zhou, Yaya [1 ]
Sun, Youyi [1 ]
Chen, He [1 ]
Xiong, Zhiyuan [2 ]
Li, Xiaolin [1 ]
Shen, Luyan [1 ]
Liu, Yaqing [1 ]
机构：
[1] North Univ China, Shanxi Prov Key Lab Funct Nanocomposites, Taiyuan 030051, Shanxi, Peoples R China
[2] Univ Melbourne, Dept Chem & Biomol Engn, Melbourne, Vic 3010, Australia
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 796卷
基金：
中国国家自然科学基金;
关键词：
Magnetic particle; Intrinsic magnetic; Reduced graphene oxide; Microwave absorption properties; Snoek limit; REDUCED GRAPHENE OXIDE; NANOPARTICLES DECORATED MWCNTS; DOUBLE-LAYER STRUCTURE; FE3O4; NANOPARTICLES; FACILE SYNTHESIS; COMPOSITES; IMPROVEMENT; PARTICLES; HYBRID;
D O I：
10.1016/j.jallcom.2019.04.310
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The magnetic properties of Fe3O4/rGO/PANI nanocomposites were tunable by the introduction of rGO, and then the effect of magnetic properties on their microwave absorption performance was further investigated. The magnetic permeability and dielectric constant of the nanocomposite were easily adjusted by the content of rGO in favor of impedance matching within the frequency range. Therefore, the minimum reflection loss (RL) of -45.0 dB at 8.5 GHz and absorbing bandwidth of 12.2 GHz below -10 dB (ranging from 5.8 to 18 GHz) were obtained for the Fe3O4/rGO/PANI-paraffin composite, which were larger comparing to other microwave absorbing materials reported in previous works. These results are very important for design and preparation of new microwave absorbing materials applied in high frequency region. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：120 / 130
页数：11
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