Síntesis química, estudios de caracterización y reactividad de un material catalítico a base de ZrO2-H 3PW12O40

Juan Manuel Hernández Enríquez; Ricardo García Alamilla; Ulises Páramo García; Rebeca Silva Rodrigo; Luz Arcelia García Serrano

doi:10.1590/S0100-40422013000700003

Síntesis química, estudios de caracterización y reactividad de un material catalítico a base de ZrO₂-H ₃PW₁₂O₄₀

Juan Manuel Hernández Enríquez, Ricardo García Alamilla, Ulises Páramo García, Rebeca Silva Rodrigo, Luz Arcelia García Serrano

Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD)

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

3 Citas (Scopus)

Resumen

In this work, the preparation and characterization of materials such as zirconium oxide (ZrO₂) and phosphotungstic acid promoted zirconium oxide (ZrO₂-H₃PW₁₂O₄₀) is presented. Physico-chemical characterization results showed that addition of H ₃PW₁₂O₄₀ acted as both a textural and chemical promoter of zirconium oxide. The incorporation of phosphotungstic acid into the ZrO₂ matrix delayed the sintering of the material and stabilized ZrO₂ in the tetragonal phase. ZrO₂ acidity was also enhanced, developing strong acid sites on its surface. The Pt/ZrO ₂-H₃PW₁₂O₄₀ catalyst was active for n-pentane isomerization at 250 °C, exhibiting high selectivity to iso-pentane (95%). This result is probably due to its suitable acidity.

Título traducido de la contribución	Chemical synthesis, characterization studies and reactivity of a catalytic material based on ZrO₂-H₃PW₁₂O₄₀
Idioma original	Portugués (Brasil)
Páginas (desde-hasta)	937-941
Número de páginas	5
Publicación	Quimica Nova
Volumen	36
N.º	7
DOI	https://doi.org/10.1590/S0100-40422013000700003
Estado	Publicada - 2013

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title = "S{\'i}ntesis qu{\'i}mica, estudios de caracterizaci{\'o}n y reactividad de un material catal{\'i}tico a base de ZrO2-H 3PW12O40",

abstract = "In this work, the preparation and characterization of materials such as zirconium oxide (ZrO2) and phosphotungstic acid promoted zirconium oxide (ZrO2-H3PW12O40) is presented. Physico-chemical characterization results showed that addition of H 3PW12O40 acted as both a textural and chemical promoter of zirconium oxide. The incorporation of phosphotungstic acid into the ZrO2 matrix delayed the sintering of the material and stabilized ZrO2 in the tetragonal phase. ZrO2 acidity was also enhanced, developing strong acid sites on its surface. The Pt/ZrO 2-H3PW12O40 catalyst was active for n-pentane isomerization at 250 °C, exhibiting high selectivity to iso-pentane (95%). This result is probably due to its suitable acidity.",

keywords = "Phosphotungstic acid, Physico-chemical characterization, Zirconium oxide",

author = "Enr{\'i}quez, {Juan Manuel Hern{\'a}ndez} and Alamilla, {Ricardo Garc{\'i}a} and Garc{\'i}a, {Ulises P{\'a}ramo} and Rodrigo, {Rebeca Silva} and Serrano, {Luz Arcelia Garc{\'i}a}",

year = "2013",

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T1 - Síntesis química, estudios de caracterización y reactividad de un material catalítico a base de ZrO2-H 3PW12O40

AU - Enríquez, Juan Manuel Hernández

AU - Alamilla, Ricardo García

AU - García, Ulises Páramo

AU - Rodrigo, Rebeca Silva

AU - Serrano, Luz Arcelia García

PY - 2013

Y1 - 2013

N2 - In this work, the preparation and characterization of materials such as zirconium oxide (ZrO2) and phosphotungstic acid promoted zirconium oxide (ZrO2-H3PW12O40) is presented. Physico-chemical characterization results showed that addition of H 3PW12O40 acted as both a textural and chemical promoter of zirconium oxide. The incorporation of phosphotungstic acid into the ZrO2 matrix delayed the sintering of the material and stabilized ZrO2 in the tetragonal phase. ZrO2 acidity was also enhanced, developing strong acid sites on its surface. The Pt/ZrO 2-H3PW12O40 catalyst was active for n-pentane isomerization at 250 °C, exhibiting high selectivity to iso-pentane (95%). This result is probably due to its suitable acidity.

AB - In this work, the preparation and characterization of materials such as zirconium oxide (ZrO2) and phosphotungstic acid promoted zirconium oxide (ZrO2-H3PW12O40) is presented. Physico-chemical characterization results showed that addition of H 3PW12O40 acted as both a textural and chemical promoter of zirconium oxide. The incorporation of phosphotungstic acid into the ZrO2 matrix delayed the sintering of the material and stabilized ZrO2 in the tetragonal phase. ZrO2 acidity was also enhanced, developing strong acid sites on its surface. The Pt/ZrO 2-H3PW12O40 catalyst was active for n-pentane isomerization at 250 °C, exhibiting high selectivity to iso-pentane (95%). This result is probably due to its suitable acidity.

KW - Phosphotungstic acid

KW - Physico-chemical characterization

KW - Zirconium oxide

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U2 - 10.1590/S0100-40422013000700003

DO - 10.1590/S0100-40422013000700003

M3 - Artículo

SN - 0100-4042

VL - 36

SP - 937

EP - 941

JO - Quimica Nova

JF - Quimica Nova

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