Flash microwave synthesis of trevorite nanoparticles
Résumé
Nickel ferrite nanoparticles have several possible applications as cathode materials for rechargeable batteries, named "lithium-ion" batteries. In this study, NiFe2O4 was prepared by microwave induced thermohydrolysis. The obtained nanoparticles were characterized by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), BET method, transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS). All the results show that the microwave one-step flash synthesis leads in a very short time to NiFe2O4 nanoparticles with elementary particles size close to 4-5 nm, and high specific surfaces (close to 240m2/g). Thus, microwave heating appears as an efficient source of energy to produce quickly nanoparticles with complex composition as ferrite.
Mots clés
Organic conductors
Iron oxide
Nickel oxide
Ferrites
Microwave heating
Particle size
Small angle X ray scattering
Transmission electron microscopy
XRD
Dispersive spectrometry
Scanning electron microscopy
Lithium battery
Electrode material
Nanostructured materials
Nanoparticles
Nanomaterial synthesis
NiFe2O4