Study of the solid-state synthesis of nickel ferrite (NiFe2O4) by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman spectroscopy. - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Article Dans Une Revue Materials Année : 2021

Study of the solid-state synthesis of nickel ferrite (NiFe2O4) by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman spectroscopy.

Résumé

Spinel ferrite compounds continue to receive a lot of attention due to their unique properties. Among the numerous synthesis routes existing, the solid-state method was applied for the pro-duction of nickel ferrite, by introducing the use of a quartz vial. A mixture of nickel oxide (NiO) and hematite (Fe2O3) was ground and vacuum-sealed in the vial and different thermal treatment programs were tested. The resulting particles were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Raman spectroscopy. For temperatures, below 1000 °C, the solid-state reaction is not complete as nickel oxide (NiO) and hematite (Fe2O3) are still present. The reaction time is a decisive parameter for the morphology of the particles obtained. If for different reaction times the particle size distribution is always be-tween 0.3 and 1.7 µm, a longer reaction time leads to the formation of dense, interconnected clus-ters of particles. Optimal parameters to synthesize a pure phase of spherical nickel ferrite were sought and found to be a reaction temperature of 1000 °C for 72 hours.
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cea-03330679 , version 1 (01-09-2021)

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Chloé Cherpin, Derek Lister, Frederic Dacquait, Lihui Liu. Study of the solid-state synthesis of nickel ferrite (NiFe2O4) by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman spectroscopy.. Materials, 2021, 14, pp.2557. ⟨10.3390/ma14102557⟩. ⟨cea-03330679⟩
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