Synthesis and microwave absorption enhancement property of core-shell FeNi3@SiO2-decorated reduced graphene oxide nanosheets

被引：39
作者：
Ding, Xiao
Huang, Ying [1 ]
Zong, Meng
机构：
[1] Northwestern Polytech Univ, Sch Sci, Minist Educ, Dept Appl Chem, Xian 710072, Peoples R China
来源：
MATERIALS LETTERS | 2015年 / 157卷
关键词：
FeNi3@SiO2@rGO; Core-shell; Carbon materials; Nanoparticles; Microwave absorption; ABSORBING PROPERTIES; FACILE SYNTHESIS; PERMITTIVITY; PERMEABILITY; COMPOSITES;
D O I：
10.1016/j.matlet.2015.05.130
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
FeNi3@SiO2-decorated reduced graphene oxide (FeNi3@SiO2@rGO) nanocomposites were prepared by combining liquid-phase reduction reaction with hydrothermal reaction. TM results illustrate that the FeNi3@SiO2 nanoparticles (NPs) are of core-shell structure with an average diameter of about 50 nm. XPS analysis shows the reduction of GO happens in the hydrothermal process. The maximum reflection loss (R-L) is - 49.4 dB at 8.64 GHz with an optimal thickness of 3.8 mm and the bandwidth (R-L < - 10 dB) is 3.38 GHz ranges from 6.72 to 10.1 GHz. The microwave absorption mechanism is mainly attributed to the dielectric loss. It is believed that the FeNi3@SiO2@rGO nanocomposites can serve as an excellent microwave absorbent and can be widely used in practice. (C) 2015 Elsevier B.V. All rights reserved.
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收藏
页码：285 / 289
页数：5
相关论文
共 23 条
[1]   Microwave absorption enhancement and complex permittivity and permeability of Fe encapsulated within carbon nanotubes [J].
Che, RC ;
Peng, LM ;
Duan, XF ;
Chen, Q ;
Liang, XL .
ADVANCED MATERIALS, 2004, 16 (05) :401-+
[2]   PREPARATION OF GRAPHITIC OXIDE [J].
HUMMERS, WS ;
OFFEMAN, RE .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (06) :1339-1339
[3]   COMPLEX PERMEABILITY AND PERMITTIVITY AND MICROWAVE-ABSORPTION OF FERRITE-RUBBER COMPOSITE IN X-BAND FREQUENCIES [J].
KIM, SS ;
JO, SB ;
GUEON, KI ;
CHOI, KK ;
KIM, JM ;
CHURN, KS .
IEEE TRANSACTIONS ON MAGNETICS, 1991, 27 (06) :5462-5464
[4]   Synthesis and microwave absorbing properties of FeNi alloy incorporated ordered mesoporous carbon-silica nanocomposite [J].
Li, Guoxian ;
Guo, Yunxia ;
Sun, Xin ;
Wang, Tao ;
Zhou, Jianhua ;
He, Jianping .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2012, 73 (11) :1268-1273
[5]   Excellent Electromagnetic Absorption Properties of Poly(3,4-ethylenedioxythiophene)-Reduced Graphene Oxide-Co3O4 Composites Prepared by a Hydrothermal Method [J].
Liu, Pan-Bo ;
Huang, Ying ;
Sun, Xu .
ACS APPLIED MATERIALS & INTERFACES, 2013, 5 (23) :12355-12360
[6]   Microwave-absorption properties of ZnO-coated iron nanocapsules [J].
Liu, X. G. ;
Geng, D. Y. ;
Meng, H. ;
Shang, P. J. ;
Zhang, Z. D. .
APPLIED PHYSICS LETTERS, 2008, 92 (17)
[7]   Microwave absorption properties of FCC-Co/Al2O3 and FCC-Co/Y2O3 nanocapsules [J].
Liu, X. G. ;
Geng, D. Y. ;
Meng, H. ;
Cui, W. B. ;
Yang, F. ;
Kang, D. J. ;
Zhang, Z. D. .
SOLID STATE COMMUNICATIONS, 2009, 149 (1-2) :64-67
[8]   FeCo nanocrystals encapsulated in N-doped carbon nanospheres/thermal reduced graphene oxide hybrids: Facile synthesis, magnetic and catalytic properties [J].
Ma, Lianbo ;
Shen, Xiaoping ;
Zhu, Guoxing ;
Ji, Zhenyuan ;
Zhou, Hu .
CARBON, 2014, 77 :255-265
[9]   Synthesis of Ni/ITO nanocomposite with excellent electromagnetic absorption via in situ reducing reaction [J].
Meng, Hong-jie ;
Zhao, Xiao-wei ;
Wang, Xin-xin ;
Jia, Yong-shuai ;
Gong, Chun-hong ;
Zhang, Jing-wei ;
Zhang, Zhi-jun .
MATERIALS LETTERS, 2014, 124 :165-168
[10]   Magnetic studies of polymer-coated Fe nanoparticles synthesized by microwave plasma polymerization [J].
Srikanth, H ;
Hajndl, R ;
Chirinos, C ;
Sanders, J ;
Sampath, A ;
Sudarshan, TS .
APPLIED PHYSICS LETTERS, 2001, 79 (21) :3503-3505
123