Please use this identifier to cite or link to this item: http://cimav.repositorioinstitucional.mx/jspui/handle/1004/297
Getting nanometric MoO3 through chemical synthesis and high energy milling
FRANCISCO PARAGUAY DELGADO
LUIS EDMUNDO FUENTES COBAS
Acceso Abierto
Atribución-NoComercial
Molybdenum oxide; Nanoparticles; Hydrothermal synthesis; Electron microscopy; Optical properties
The effects of high energy mechanical milling (HEMM) were studied on the microstructure and optical properties of MoO3 for hexagonal and orthorhombic phases. Employing HEMM was possible change particle size as a function of mechanical milling time, as well as the small quantity transformation percentage from hexagonal to orthorhombic phase. The relationship between microstrain and optical properties generated was studied. The electronic structures were calculated using the Density Functional Theory (DFT); to determinate partial density of state (PDOS). Band gap structure calculations show a good correlation between experimental and simulated data. The approximated values of microstrain, particle size, lattice parameters and oxygen vacancies were obtained employing the Rietveld refinement of X-ray diffraction patterns. Samples were characterized by electron microscopy techniques, surface area analysis (BET), thermal-gravimetric analysis (TGA), differential scanning calorimetry (DSC) and ultraviolet–visible spectroscopy (UV–Vis). It was possible, obtain particles with size below 40 nm by 30 min milling.
2015
Artículo
Inglés
Santos-Beltrán, M., Paraguay-Delgado, F., Santos-Beltrán, A., & Fuentes, L. (2015). Getting nanometric MoO 3 through chemical synthesis and high energy milling. Journal of Alloys and Compounds, 648, 445-455.
QUÍMICA
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