EFFECT OF THE ADDITION OF PHOSPHOTUNGSTIC ACID ON THE THERMAL STABILITY OF ZIRCONIUM OXIDE
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional de Colombia
2014
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| _version_ | 1876430193435869184 |
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| author | JUAN MANUEL HERNÁNDEZ-ENRÍQUEZ |
| author_facet | JUAN MANUEL HERNÁNDEZ-ENRÍQUEZ |
| contents | EFFECT OF THE ADDITION OF PHOSPHOTUNGSTIC ACID ON THE THERMAL STABILITY OF ZIRCONIUM OXIDE JUAN MANUEL HERNÁNDEZ-ENRÍQUEZ RICARDO GARCÍA-ALAMILLA GUILLERMO SANDOVAL-ROBLES JOSÉ AARÓN MELO-BANDA LUZ ARCELIA GARCÍA-SERRANO Ingeniería Zirconium oxide Crystallite size Thermal stability Phosphotungstic acid Specific surface area 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. 2014 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49630072013 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.183 Vol.81 |
| format | Artículo científico |
| id | redalyc_49630072013 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | EFFECT OF THE ADDITION OF PHOSPHOTUNGSTIC ACID ON THE THERMAL STABILITY OF ZIRCONIUM OXIDE JUAN MANUEL HERNÁNDEZ-ENRÍQUEZ Ingeniería Zirconium oxide Crystallite size Thermal stability Phosphotungstic acid Specific surface area EFFECT OF THE ADDITION OF PHOSPHOTUNGSTIC ACID ON THE THERMAL STABILITY OF ZIRCONIUM OXIDE JUAN MANUEL HERNÁNDEZ-ENRÍQUEZ RICARDO GARCÍA-ALAMILLA GUILLERMO SANDOVAL-ROBLES JOSÉ AARÓN MELO-BANDA LUZ ARCELIA GARCÍA-SERRANO Ingeniería Zirconium oxide Crystallite size Thermal stability Phosphotungstic acid Specific surface area 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. 2014 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49630072013 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.183 Vol.81 |
| title | EFFECT OF THE ADDITION OF PHOSPHOTUNGSTIC ACID ON THE THERMAL STABILITY OF ZIRCONIUM OXIDE |
| topic | Ingeniería Zirconium oxide Crystallite size Thermal stability Phosphotungstic acid Specific surface area |
| url | https://www.redalyc.org/articulo.oa?id=49630072013 |