TY - JOUR N2 - Flake-like Co3O4 nanoparticles were prepared by a facile hydrothermal synthesis method at 200 °C for 8 h, 10 h, and 12 h and labelled FCo8, FCo10, and FCo12. The electromagnetic properties of the samples were investigated at the X-band frequency. The XRD, RAMAN, TGA, FESEM, and XPS were studied to determine the chemical composition and morphology of the samples. The sample's electromagnetic performance mainly depends on multiple reflections, interfacial polarization, and magnetic loss. The results showed that the flake-like Co3O4 prepared at 200 °C for 12 h (FCo12) exhibits a minimum reflection loss of â??42.4 dB at 11.7 GHz and an absorber thickness of 3.0 mm. The effective absorption bandwidth was also below â??10 dB. This study provides a facile method to synthesize porous flake-like Co3O4 nanoparticles with excellent properties for effective microwave absorption performance at the X-band frequency. © 2022 Elsevier B.V. N1 - cited By 2 KW - Cobalt compounds; Cobalt deposits; Electromagnetic wave absorption; Nanoparticles KW - Cobalt oxide nanoparticles; Electromagnetic properties; Flake-like cobalt; GHz frequencies; Hexagonal plate-like; Hexagonal plates; Synthesis method; X bands; X-band frequencies; XRD KW - Hydrothermal synthesis TI - Hydrothermal synthesis of flake-like cobalt oxide nanoparticles for electromagnetic waves absorption at X-band (8.2â??12.4 GHz) frequency ID - scholars19444 AV - none UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85142331222&doi=10.1016%2fj.mseb.2022.116132&partnerID=40&md5=4fb73a381707de70875c4f6cbc0d4646 A1 - Yusuf, J.Y. A1 - Soleimani, H. A1 - Chuan, L.K. A1 - Soleimani, H. A1 - Balogun, B.B. A1 - Abass, Z. A1 - Adam, A.A. JF - Materials Science and Engineering: B VL - 287 Y1 - 2023/// ER -