The performance of radar absorption of MnxFe3–xO4/rGO nanocomposites prepared from iron sand beach and coconut shell waste

IF 1.4 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY AIMS Materials Science Pub Date : 2023-01-01 DOI:10.3934/matersci.2023013
Yana Fajar Prakasa, S. Sumari, A. Santoso, Muhammad Roy Asrori, R. Cahyanti
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引用次数: 1

Abstract

In this work, the Fe3O4 nanoparticles from natural iron sand were doped with Mn and combined with reduced-graphene oxide (rGO) to obtain MnxFe3–xO4/rGO nanocomposites with mole fraction variations of the Mn of 0.25, 0.5, and 0.75. The crystalline phase of the synthesized MnxFe3–xO4/rGO nanocomposites formed an amorphous phase. The presence of rGO was observed through EDX results. The magnetical properties of MnxFe3–xO4/rGO nanocomposites were shown by decreasing the Br, HcJ, Hmax along with increasing of Mn doping. Interestingly, increasing rGO and Mn composition made the absorption bandwidth of the MnxFe3–xO4/rGO nanocomposites wider, so that the radar absorption also increased marking by the greater reflection loss that reached −11.95 dB. The increase in the radar absorption performance of MnxFe3–xO4/rGO nanocomposites came from the efficient complementarity between dielectric loss and magnetic loss and interfacial polarization between Fe3O4 doped Mn and rGO.

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研究了以铁沙滩和椰壳废料为原料制备的MnxFe3-xO4 /rGO纳米复合材料的雷达吸收性能
在本研究中,将天然铁砂中的Fe3O4纳米颗粒掺杂Mn,并与还原氧化石墨烯(rGO)结合,得到Mn摩尔分数分别为0.25、0.5和0.75的MnxFe3-xO4 /rGO纳米复合材料。合成的MnxFe3-xO4 /rGO纳米复合材料的晶相形成非晶相。通过EDX结果观察到氧化石墨烯的存在。MnxFe3-xO4 /rGO纳米复合材料的磁性能随Mn掺杂量的增加而降低Br、HcJ、Hmax。有趣的是,增加rGO和Mn的成分,使MnxFe3-xO4 /rGO纳米复合材料的吸收带宽变宽,从而使雷达吸收也增加了标记,反射损失更大,达到- 11.95 dB。MnxFe3-xO4 /rGO纳米复合材料雷达吸收性能的提高来自于介质损耗和磁损耗之间的有效互补以及Fe3O4掺杂Mn与rGO之间的界面极化。
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来源期刊
AIMS Materials Science
AIMS Materials Science MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
3.60
自引率
0.00%
发文量
33
审稿时长
4 weeks
期刊介绍: AIMS Materials Science welcomes, but not limited to, the papers from the following topics: · Biological materials · Ceramics · Composite materials · Magnetic materials · Medical implant materials · New properties of materials · Nanoscience and nanotechnology · Polymers · Thin films.
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