Publicado

2014-01-01

EFFECT OF THE ADDITION OF PHOSPHOTUNGSTIC ACID ON THE THERMAL STABILITY OF ZIRCONIUM OXIDE

DOI:

https://doi.org/10.15446/dyna.v81n183.32929

Palabras clave:


Zirconium oxide, Posphotungstic acid, Thermal stability, Specific surface area, Crystallite size (es)

Descargas

Autores/as

  • JUAN MANUEL HERNÁNDEZ-ENRÍQUEZ Instituto Tecnológico de Ciudad Madero
  • RICARDO GARCÍA-ALAMILLA Instituto Tecnológico de Ciudad Madero
  • GUILLERMO SANDOVAL-ROBLES Instituto Tecnológico de Ciudad Madero
  • JOSÉ AARÓN MELO-BANDA Instituto Tecnológico de Ciudad Madero
  • LUZ ARCELIA GARCÍA-SERRANO Instituto Politécnico Nacional (CIIEMAD)
Zirconium hydroxide [Zr(OH)4] was synthesized by the sol-gel method using zirconium n-butoxide and 1-butanol as synthesis precursors. A part of the synthesized material was impregnated with phosphotungstic acid (H3PW12O40) in order to evaluate the effect of this dopant agent on the thermal, textural and structural properties of zirconium oxide (ZrO2). Pure and modified hydroxides were calcined in an air flow at 400, 500 and 600°C for 3 h and afterwards were characterized by thermal analysis, infrared spectroscopy, X-ray diffraction and nitrogen physisorption. Results showed that the interaction between the heteropolyanion and zirconium oxide surface produces a stabilizing effect of the crystalline structure and delays the drastic sintering of the material caused by the thermal treatment, obtaining high specific surface areas and small crystallite size for the modified zirconium oxides.

Dimensions

PlumX

Visitas a la página del resumen del artículo

545

Descargas

Los datos de descarga aún no están disponibles.

Cómo citar

[1]
“EFFECT OF THE ADDITION OF PHOSPHOTUNGSTIC ACID ON THE THERMAL STABILITY OF ZIRCONIUM OXIDE”, DYNA, vol. 81, no. 183, pp. 107–114, Jan. 2014, doi: 10.15446/dyna.v81n183.32929.