Synthesis of macroporous ZrO<inf>2</inf>-Al<inf>2</inf>O<inf>3</inf> mixed oxides with mesoporous walls, using polystyrene spheres as template

José Ortiz-Landeros, Maria Eugenia Contreras-García, Heriberto Pfeiffer

Research output: Contribution to journalArticleResearchpeer-review

19 Citations (Scopus)

Abstract

Macroporous ZrO2-Al2O3 mixed oxides with mesoporous walls were synthesized. The three-dimensional interconnected macroporous structures, of inorganic zirconia-alumina mixed oxides containing different alumina compositions (25, 50, 100 wt%), were prepared by sol-gel method from inorganic precursors and using polystyrene microspheres with diameters of 685 and 1520 nm as templates. The final porous arrays with controllable pore size in the submicrometer range could be obtained by calcination of the organic template. The structural characteristics are discussed. The physicochemical characterization of the samples was carried out by N2 physisorption (SBET), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The shrinkage of pore diameter was approximately 35%, and the wall thickness of inorganic framework varied between 135 and 154 nm. The specific surface areas, of the samples, were between 123 and 287 m2/g, obtaining the largest surface area with the highest alumina contents and the smallest templates. © 2008 Springer Science+Business Media, LLC.
Original languageAmerican English
Pages (from-to)473-479
Number of pages425
JournalJournal of Porous Materials
DOIs
StatePublished - 1 Aug 2009
Externally publishedYes

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Aluminum Oxide
Polystyrenes
mixed oxides
Oxides
polystyrene
Alumina
templates
aluminum oxides
synthesis
porosity
Physisorption
Microspheres
shrinkage
zirconium oxides
Specific surface area
Zirconia
Calcination
roasting
Sol-gel process
Pore size

Cite this

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title = "Synthesis of macroporous ZrO2-Al2O3 mixed oxides with mesoporous walls, using polystyrene spheres as template",
abstract = "Macroporous ZrO2-Al2O3 mixed oxides with mesoporous walls were synthesized. The three-dimensional interconnected macroporous structures, of inorganic zirconia-alumina mixed oxides containing different alumina compositions (25, 50, 100 wt{\%}), were prepared by sol-gel method from inorganic precursors and using polystyrene microspheres with diameters of 685 and 1520 nm as templates. The final porous arrays with controllable pore size in the submicrometer range could be obtained by calcination of the organic template. The structural characteristics are discussed. The physicochemical characterization of the samples was carried out by N2 physisorption (SBET), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The shrinkage of pore diameter was approximately 35{\%}, and the wall thickness of inorganic framework varied between 135 and 154 nm. The specific surface areas, of the samples, were between 123 and 287 m2/g, obtaining the largest surface area with the highest alumina contents and the smallest templates. {\circledC} 2008 Springer Science+Business Media, LLC.",
author = "Jos{\'e} Ortiz-Landeros and Contreras-Garc{\'i}a, {Maria Eugenia} and Heriberto Pfeiffer",
year = "2009",
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language = "American English",
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Synthesis of macroporous ZrO<inf>2</inf>-Al<inf>2</inf>O<inf>3</inf> mixed oxides with mesoporous walls, using polystyrene spheres as template. / Ortiz-Landeros, José; Contreras-García, Maria Eugenia; Pfeiffer, Heriberto.

In: Journal of Porous Materials, 01.08.2009, p. 473-479.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Contreras-García, Maria Eugenia

AU - Pfeiffer, Heriberto

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N2 - Macroporous ZrO2-Al2O3 mixed oxides with mesoporous walls were synthesized. The three-dimensional interconnected macroporous structures, of inorganic zirconia-alumina mixed oxides containing different alumina compositions (25, 50, 100 wt%), were prepared by sol-gel method from inorganic precursors and using polystyrene microspheres with diameters of 685 and 1520 nm as templates. The final porous arrays with controllable pore size in the submicrometer range could be obtained by calcination of the organic template. The structural characteristics are discussed. The physicochemical characterization of the samples was carried out by N2 physisorption (SBET), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The shrinkage of pore diameter was approximately 35%, and the wall thickness of inorganic framework varied between 135 and 154 nm. The specific surface areas, of the samples, were between 123 and 287 m2/g, obtaining the largest surface area with the highest alumina contents and the smallest templates. © 2008 Springer Science+Business Media, LLC.

AB - Macroporous ZrO2-Al2O3 mixed oxides with mesoporous walls were synthesized. The three-dimensional interconnected macroporous structures, of inorganic zirconia-alumina mixed oxides containing different alumina compositions (25, 50, 100 wt%), were prepared by sol-gel method from inorganic precursors and using polystyrene microspheres with diameters of 685 and 1520 nm as templates. The final porous arrays with controllable pore size in the submicrometer range could be obtained by calcination of the organic template. The structural characteristics are discussed. The physicochemical characterization of the samples was carried out by N2 physisorption (SBET), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The shrinkage of pore diameter was approximately 35%, and the wall thickness of inorganic framework varied between 135 and 154 nm. The specific surface areas, of the samples, were between 123 and 287 m2/g, obtaining the largest surface area with the highest alumina contents and the smallest templates. © 2008 Springer Science+Business Media, LLC.

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