TY - JOUR
T1 - Spectroscopic study and morphology of vanadate glasses and wollastonite-2m | Estudio espectroscópico y morfología de vidrios de vanadato y wollastonita-2m
AU - García-Amaya, I.V.
AU - Paz-Moreno, F.A.
AU - Alvarado-Rivera, J.
AU - Acosta-Enríquez, M.C.
AU - Zayas, Ma.E.
AU - Gámez-Corrales, R.
AU - Manzanares-Martínez, M.B.
AU - Álvarez-Montaño, V.E.
AU - Lozada, R.
PY - 2014
Y1 - 2014
N2 - ©Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales. Wollastonite from Encarnaci & #243;n Villa Ju & #225;rez deposit located in Hidalgo, Mexico was used as raw material to fabricate glass using V2O5as former oxide. Powder fusion at 1350 & #176;C was carried out for glass fabrication. The obtained glasses were of amber, gray and black color; the most transparent glasses are those with a composition of 60 to 65[%] wt. of V2O5and 40 to 35 [%] wt. of wollastonite. XRD patterns of the samples show the presence of wollastonite-2M and the VO2orthorhombic crystalline phase. FT-IR and Raman spectroscopies revealed the formation of metavanadates and pirovanadates groups. In addition, drop of phase separation caused by liquid-liquid immiscibility was observed by scanning electron microscopy imaging. XPS analysis was carried out to analyze vanadium oxidation state and bonding and non-bonding oxygen estimation. The curve fitting of the high resolution spectra of the V 2p3/2peak showed the presence of V4+and V5+vanadium oxidation states for all glasses.
AB - ©Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales. Wollastonite from Encarnaci & #243;n Villa Ju & #225;rez deposit located in Hidalgo, Mexico was used as raw material to fabricate glass using V2O5as former oxide. Powder fusion at 1350 & #176;C was carried out for glass fabrication. The obtained glasses were of amber, gray and black color; the most transparent glasses are those with a composition of 60 to 65[%] wt. of V2O5and 40 to 35 [%] wt. of wollastonite. XRD patterns of the samples show the presence of wollastonite-2M and the VO2orthorhombic crystalline phase. FT-IR and Raman spectroscopies revealed the formation of metavanadates and pirovanadates groups. In addition, drop of phase separation caused by liquid-liquid immiscibility was observed by scanning electron microscopy imaging. XPS analysis was carried out to analyze vanadium oxidation state and bonding and non-bonding oxygen estimation. The curve fitting of the high resolution spectra of the V 2p3/2peak showed the presence of V4+and V5+vanadium oxidation states for all glasses.
UR - http://www.mendeley.com/research/spectroscopic-study-morphology-vanadate-glasses-wollastonite2m-estudio-espectrosc%C3%B3pico-y-morfolog%C3%ADa
M3 - Article
SN - 1665-3521
VL - 27
JO - Superficies y Vacio
JF - Superficies y Vacio
IS - 4
ER -