Abstract
In the present work, spinel Ni(1−X)CrXFe2O4 (X = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 M) nanoparticles were synthesized by co-precipitation method followed by calcination at 400 °C for 2 h. The structural and morphological properties of the synthesized nanoparticles were studied using powder XRD,micro-Raman measurements, FE-SEM, TEM and EDS. The results revealed that the synthesized nanoparticles were single-crystal, cubic-phase structure with spherical shape. Energy-dispersive X-ray spectroscopy confirmed the elements present in the synthesized nanoparticles. Moreover, microwave absorption properties were measured using vector network analyser (VNA). The minimum reflection loss − 14.44 dB at 9.49 GHz was observed for Ni(1−X)CrXFe2O4 (X = 0.5 M) nanoparticles at 3 mm thickness. These results suggest that Ni(1−X)CrXFe2O4 (X = 0.5 M) nanoparticles would be applicable for microwave absorption application.
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