摘要
Abstract FeNi3@SiO2-decorated reduced graphene oxide (FeNi3@SiO2@rGO) nanocomposites were prepared by combining liquid-phase reduction reaction with hydrothermal reaction. TEM 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 (RL) is -49.4 dB at 8.64 GHz with an optimal thickness of 3.8 mm and the bandwidth (RL<-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.
源语言 | 英语 |
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文章编号 | 19024 |
页(从-至) | 285-289 |
页数 | 5 |
期刊 | Materials Letters |
卷 | 157 |
DOI | |
出版状态 | 已出版 - 11 6月 2015 |