eprintid: 15192
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/51/92
datestamp: 2023-11-10 03:29:48
lastmod: 2023-11-10 03:29:48
status_changed: 2023-11-10 01:58:52
type: article
metadata_visibility: show
creators_name: Wahaab, F.A.
creators_name: Yahya, W.
creators_name: Adebayo, L.L.
creators_name: Kazeem, I.
creators_name: Abdulraheem, A.
creators_name: Alqasem, B.
creators_name: Yusuf, J.Y.
creators_name: Adekoya, A.A.
creators_name: Mui Nyuk, C.
title: Graphene@Ni0.5Co0.5Fe2O4 hybrid framework with enhanced interfacial polarization for electromagnetic wave absorption
ispublished: pub
keywords: Electromagnetic wave absorption; Electromagnetic waves; Graphene; Impedance matching (electric); Iron compounds; Nickel compounds, Absorption property; Coprecipitation method; Efficient absorbers; Good impedance match; Interfacial polarization; Pollution mitigation; Pore configuration; Strong absorptions, Electromagnetic wave polarization
note: cited By 27
abstract: Fabrication of smart materials for electromagnetic (EM) wave absorption has been propounded as efficient EM interference and pollution mitigation method. Herein, a porous lightweight graphene@Ni0.5Co0.5Fe2O4 composite was prepared via a coprecipitation method. The results show that Ni0.5Co0.5Fe2O4 nanoparticles are homogeneously dispersed and anchored on the graphene flakes. Investigation of the EM waves absorption properties of the material at different filling in paraffin reveals that at 15 wt loading, the composite absorbs large percent of the EM waves at minimal thickness. The composite attains optimum reflection loss peak �44.7 dB at 17.45 GHz, with 1.5 mm thickness. This enhanced EM wave absorption performance (at lesser thickness than Ni0.5Co0.5Fe2O4 in literature) could be ascribed to interfacial polarization and a good impedance match arising from unique pore configuration of the dielectric (graphene) and magnetic (Ni0.5Co0.5Fe2O4) composite. These results indicate that the lightweight G@Ni0.5Co0.5Fe2O4 composites with strong absorption at reduced thickness is an efficient absorber for high-frequency EM wave attenuation. © 2020 Elsevier B.V.
date: 2021
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85091590406&doi=10.1016%2fj.jallcom.2020.157259&partnerID=40&md5=748474038be4ec4ec0fb376af4481bbe
id_number: 10.1016/j.jallcom.2020.157259
full_text_status: none
publication: Journal of Alloys and Compounds
volume: 854
refereed: TRUE
issn: 09258388
citation:   Wahaab, F.A. and Yahya, W. and Adebayo, L.L. and Kazeem, I. and Abdulraheem, A. and Alqasem, B. and Yusuf, J.Y. and Adekoya, A.A. and Mui Nyuk, C.  (2021) Graphene@Ni0.5Co0.5Fe2O4 hybrid framework with enhanced interfacial polarization for electromagnetic wave absorption.  Journal of Alloys and Compounds, 854.   ISSN 09258388