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Synthesis and characterization of ultrafine and mesoporous structure of cobalt ferrite
Hamid Emadi,Ali Nemati Kharat 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
Ultrafine nanoparticles of cobalt ferrite (CoFe2O4) were synthesized under microwave irradiation inpolyol media and then were applied for the synthesis of mesoporous structures of cobalt ferrite. Theeffect of reaction parameters on products were investigated by X-ray diffraction (XRD), scanningelectron microscopy (SEM), transmittance electron microscopy (TEM), energy dispersive X-rayspectroscopy (EDS), Fourier transform infrared (FT-IR) spectra, vibrating sample magnetometer(VSM), and volumetric nitrogen adsorption. TEM and BET analysis showed presence of mesoporusstructures with pore sizes less than 10 nm in the final product.
Farhad Heidary,Ali Reza Khodabakhshi,Ali Nemati Kharat 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.4
A new type of cation-exchange nanocomposite membrane was prepared via in-situ formation of FeOOH nanoparticles in a blend containing sulfonated poly (2,6-dimethyl-1,4-phenylene oxide) and sulfonated polyvinylchloride by a simple one-step chemical method. Prepared nanocomposite membranes were characterized using Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray diffraction. The SEM images showed uniform dispersion of FeOOH nanoparticles throughout the polymeric matrices. The effect of additive loading on physicochemical and electrochemical properties of prepared cation-exchange nanocomposite membranes was studied. Various characterizations showed that the incorporation of different amounts of FeOOH nanoparticles into the basic membrane structure had a significant influence on the membrane performance and could improve the electrochemical properties.