Author:
Prakasa Yana Fajar,Sumari Sumari,Santoso Aman,Asrori Muhammad Roy,Cahyanti Ririn
Abstract
<abstract>
<p>In this work, the Fe<sub>3</sub>O<sub>4</sub> nanoparticles from natural iron sand were doped with Mn and combined with reduced-graphene oxide (rGO) to obtain Mn<sub>x</sub>Fe<sub>3–x</sub>O<sub>4</sub>/rGO nanocomposites with mole fraction variations of the Mn of 0.25, 0.5, and 0.75. The crystalline phase of the synthesized Mn<sub>x</sub>Fe<sub>3–x</sub>O<sub>4</sub>/rGO nanocomposites formed an amorphous phase. The presence of rGO was observed through EDX results. The magnetical properties of Mn<sub>x</sub>Fe<sub>3–x</sub>O<sub>4</sub>/rGO nanocomposites were shown by decreasing the Br, H<sub>c</sub>J, H<sub>max</sub> along with increasing of Mn doping. Interestingly, increasing rGO and Mn composition made the absorption bandwidth of the Mn<sub>x</sub>Fe<sub>3–x</sub>O<sub>4</sub>/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 Mn<sub>x</sub>Fe<sub>3–x</sub>O<sub>4</sub>/rGO nanocomposites came from the efficient complementarity between dielectric loss and magnetic loss and interfacial polarization between Fe<sub>3</sub>O<sub>4</sub> doped Mn and rGO.</p>
</abstract>
Publisher
American Institute of Mathematical Sciences (AIMS)
Cited by
1 articles.
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