Graphene@Ni0.5Co0.5Fe2O4 hybrid framework with enhanced interfacial polarization for electromagnetic wave absorption

Simple item page
dc.contributor.authorFatai Adisa Wahaab
dc.contributor.authorWasiu Yahya
dc.contributor.authorLawal Lanre Adebayo
dc.contributor.authorIssa Kazeem
dc.contributor.authorAbdulganiyu Abdulraheem
dc.contributor.authorBilal Alqasem
dc.contributor.authorJemilat Yetunde Yusuf
dc.contributor.authorAbibat Asabi Adekoya
dc.contributor.authorChai Mui Nyuk
dc.date.accessioned2025-12-08T13:58:39Z
dc.date.available2025-12-08T13:58:39Z
dc.date.issued2020
dc.description.abstractFabrication 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 co-precipitation 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. absorber for high-frequency EM wave attenuation.
dc.identifier.urihttps://kwasuspace.kwasu.edu.ng/handle/123456789/6471
dc.publisherElsevier
dc.titleGraphene@Ni0.5Co0.5Fe2O4 hybrid framework with enhanced interfacial polarization for electromagnetic wave absorption
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1367_Graphene.pdf
Size:
4.36 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed to upon submission
Description:
Download
Collections
Scholarly Publication