Abstract
The CoNi alloy nanoparticles with different molar ratios of Co:Ni were prepared by the liquid-phase reduction, and the morphology, chemical composition and structure of the particles were investigated by field-emission scanning electron microscopy and X-ray powder diffraction. The complex permittivity and permeability of the nanoparticles were investigated by network analyzer in the frequency range of 1–18 GHz. The reflection loss was calculated based on the determined complex permittivity and permeability. The field-emission scanning electron microscopy results showed that all samples with different Co:Ni molar ratios were spherical and evenly distributed with the diameter ranging from 60 to 200 nm. Compared with other samples with different Co:Ni molar ratios, the sample with Co:Ni molar ratio of 1:2 displayed higher microwave-absorbing properties due to the higher imaginary parts of the complex permittivity and permeability.
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Schedule a callMore From: Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanoengineering and Nanosystems
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