Abstracts Book - IMRC 2018

• SF1-O015
SYNTHESIS, STRUCTURAL AND MORPHOLOG
CHARACTERIZATION ON BaO-MgO-V2O5 AND SnO2-MgO-Sb2O3
SYSTEMS.
Jose Hurtado 1,2 , Elizabeth Chavira 1 , Adriana Tejeda Cruz 3 , Karla Eriseth Morales Reyes 4 , Omar
Novelo 5 , Josué Romero Ibarra 5 , Jesús Angel Arenas Alatorre 6 , Jorge Barreto 6
1 Instituto de Investigaciones en Materiales, Departamento de baja dimensionalidad, Mexico.
2 Universidad Nacional Autónoma de México, Posgrado en Ciencias Químicas, Mexico. 3 Instituto
de Investigaciones en Materiales, Difracción de rayos x, Mexico. 4 Instituto de Investigaciones
en Materiales, Análisis térmico, Mexico. 5 Instituto de Investigaciones en Materiales,
Microscopía electrónica, Mexico. 6 Instituto de Física - Universidad Nacional Autónoma de
México, Microscopía, Mexico.
It is observed that the formation of ternary and binary phases during the solidstate
reaction between two mixtures of BaO-MgO-V 2 O 5 and SnO 2 -MgO-Sb 2 O 3
can be detected using powder X-ray diffraction, XRD. Both mixtures react and
form several compounds: Ba 3 (VO 4 ) 2, BaMg 2 (VO 4 ) 2, MgV 3 O 8 , BaV 3 O 8 for the first
mixture and the second one forms: Sn 0.918 Sb 0.109 O 2 , MgSb 2 + 5O 6 . Some changes
of the crystalline structure were detected, by the XRD, due to the introduction
of cations, form the reagents, of different size into the crystalline structure of
the binary and ternary compounds.
Thermal Analysis characterization was used to know on what range of
temperatures the reaction could occur and to know when the products were
able to react as oxides, because the BaO was obtained the decomposition of
BaCO 3 .
Carry out the reaction into a high-alumina (Al 2 O 3 ) crucible implies a slow cooling
compared to cooling in a Platinum crucible. It has an effect too in the reaction
products, because when the cooling of the products is made into an ice bath
media (when the products were into the platinum crucible), apparently has a
different effect the air (for the alumina crucible) in the formation of crystalline
phases, having a wider range of different crystalline phases in the case of carry
out the reaction into an alumina crucible. The cooling velocity had an affect in
the x-ray diffractograms to, because when the products were cooled in the
alumina crucible, results were displaced the x-ray patterns of the
crystallographic sheets, and in the case of the ice bath cooling, results were
aligned with the sheets. Two isostructural compounds related with ScSbO 4 and
Ba 3 (VO 4 ) 2 were obtained with this variation of the cooling stage. These results