Influence of grain size, oxygen stoichiometry, and synthesis conditions on the γ-Fe2O3 vacancies ordering and lattice parameters
作者： T Belin , N Guigue-Millot , T Caillot , D Aymes , J.C Niepce
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摘要: The soft chemistry method has been used to synthesize γ-Fe2O3 nanoparticles: various synthesis temperature were applied obtain nanometric powders with crystallite size in the 9–14 nm range. Powders characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectrophotometry, surface area measurements, and electron microscopy (TEM, SEM). It is clearly shown that these are very well crystallized as indicated XRD IR spectra which present substructural bands attributed vacancies ordering (P4132). Based on model materials range studied here, cell parameter appears be not linked size. rather depends both hydroxide adsorption chemical composition.
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