Microwave absorption and catalytic activity of NiCo nanostructures

This study investigates the microwave absorption and catalytic activity of NiCo nanoparticles synthesized via solvothermal method. SEM, TEM, and EDX are used for structural and composition characterization of the nanoparticles. The saturation magnetization, magnetic anisotropy, and ferromagnetic properties are determined at room temperature by vibrating sample magnetometry. UV-vis spectroscopy is also performed to determine optical absorption properties. Results show that the dendritic structure and good electrical conductivity of the nanoparticles contribute to the excellent microwave absorbing performance and catalytic activity in chemical reduction of 4-nitrophenol to 4-aminophenol.