eprintid: 15748 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/57/48 datestamp: 2023-11-10 03:30:22 lastmod: 2023-11-10 03:30:22 status_changed: 2023-11-10 02:00:18 type: article metadata_visibility: show creators_name: Adebayo, L.L. creators_name: Soleimani, H. creators_name: Guan, B.H. creators_name: Yahya, N. creators_name: �chsner, A. creators_name: Sabet, M. creators_name: Yusuf, J.Y. creators_name: Ali, H. title: A simple route to prepare Fe3O4@C microspheres as electromagnetic wave absorbing material ispublished: pub keywords: Electromagnetic wave absorption; Electromagnetic waves; Impedance matching (electric); Magnetite; Magnetite nanoparticles; Microspheres; Nanocomposites, Adverse effect; Carbon microspheres; Electro magnetic pollution; Electromagnetics; Fe-3/O-4; High-temperature calcination; Hydrothermal process; Microwave absorbing materials; Simple++; Wave absorbing materials, Carbon note: cited By 25 abstract: To tackle the problem of electromagnetic (EM) pollution and the adverse effect of EM interference, tremendous research works have been aimed at the realization of the optimal EM wave absorbing materials. In this study, Fe3O4@C microspheres with a regular size of 5-7 μm were prepared via a simple hydrothermal process and subsequent high-temperature calcination. The carbon microspheres were produced from the pyrolysis of a carboxyl and carbohydrate group. The Fe3O4@C microspheres are made up of Fe3O4 nanoparticles entangled with even distribution on the carbon microsphere. The Fe3O4@C microspheres displayed a good BET surface area (181.89 m2/g). A Fe3O4@C-30 sample exhibited a minimum reflection loss value of -47 dB at 16.89 GHz, with 2.0 mm matching thickness. Large amounts of EM waves transmit through the material due to favorable impedance match at the Fe3O4@C microspheres air interface, this resulted in low reflections of the EM waves at the boundary. © 2021 The Author(s). date: 2021 publisher: Elsevier Editora Ltda official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106932042&doi=10.1016%2fj.jmrt.2021.03.094&partnerID=40&md5=39de1334b14ef08873fc997e22b5c1ea id_number: 10.1016/j.jmrt.2021.03.094 full_text_status: none publication: Journal of Materials Research and Technology volume: 12 pagerange: 1552-1563 refereed: TRUE issn: 22387854 citation: Adebayo, L.L. and Soleimani, H. and Guan, B.H. and Yahya, N. and �chsner, A. and Sabet, M. and Yusuf, J.Y. and Ali, H. (2021) A simple route to prepare Fe3O4@C microspheres as electromagnetic wave absorbing material. Journal of Materials Research and Technology, 12. pp. 1552-1563. ISSN 22387854