Radiation-induced synthesis of graphene/ferrites nanocomposites for enhanced microwave-absorbing properties

被引：7
作者：
Du, Zhonghe [1 ]
Zhang, Youwei [2 ]
Chen, Xibang [3 ,4 ]
Que, Xueyan [3 ,4 ]
Liu, Pinggui [2 ]
Zhai, Maolin [3 ,4 ]
Ma, Hui-Ling [1 ]
Zhang, Xiuqin [1 ]
机构：
[1] Beijing Inst Fash Technol, Sch Mat Sci & Engn, Beijing Engn Res Ctr Text Nanofiber, Beijing Key Lab Clothing Mat R&D & Assessment, Beijing 100029, Peoples R China
[2] Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China
[3] Peking Univ, Beijing Natl Lab Mol Sci, Dept Appl Chem, Minist Educ,Coll Chem & Mol Engn, Beijing 100871, Peoples R China
[4] Peking Univ, Key Lab Polymer Chem & Phys, Minist Educ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2020年 / 31卷 / 19期
基金：
中国国家自然科学基金;
关键词：
WAVE ABSORPTION PROPERTIES; REDUCED GRAPHENE OXIDE; HIGH-PERFORMANCE; FACILE SYNTHESIS; COMPOSITES; NANOPARTICLES; IRRADIATION; FABRICATION; REDUCTION; NANOTUBES;
D O I：
10.1007/s10854-020-04176-y
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Ferrites (FenOm) nanoparticles decorated graphene nanocomposites are prepared by gamma ray irradiation technology. X-ray diffraction patterns, X-ray photoelectron spectroscopy, and transmission electron microscopy are applied to analyze the structure of the obtained products. Graphene oxide (GO) is partially reduced to graphene by gamma ray irradiation. Besides, FenOm nanoparticles (the size is similar to 4.9 nm), which are composed of Fe2O3 and Fe3O4, are evenly decorated on graphene nanosheets. Due to the introduction of magnetic ferrite nanoparticles, the obtained nanocomposite shows an optimal reflection loss (RL) of - 42.7 dB at 17.0 GHz. Besides, the effective absorption bandwidth (RL <= - 10 dB) is 5.7 GHz (12.3-18 GHz).
引用
收藏
页码：16281 / 16289
页数：9
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