Aluminum-doped mesoporous zirconia obtained from anionic surfactants

E. Zhao, S. E. Hardcastle, G. Pacheco, A. Garcia, A. L. Blumenfeld, J. J. Fripiat

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Mesoporous sulfated and oxophosphated zirconia obtained at low pH from dodecyl sulfate and phosphate, respectively, and from zirconium isopropoxide were doped with aluminum. Aluminum is produced by the simultaneous hydrolysis of aluminum alkoxide.In sulfated zirconia, aluminum forms a coating layer of amorphous alumina, but it does not seem to be introduced into the zirconia lattice. On the other hand, Al enters the lattice of oxophosphate, in addition to the formation of the coating layer. A maximum ratio of Al/Zr≈0.04 can be reached in the lattice. The introduction of aluminum into the lattice prevents the crystallization of the oxophosphate at 900°C, and helps to preserve the surface area and porosity of the sulfated zirconia above 500°C. The difference in morphology of the aluminated and phosphated zirconia and that of the nonaluminated corresponding samples parallels the observations made on porosity. © 1999 Elsevier Science B.V.
Original languageAmerican English
Pages (from-to)9-21
Number of pages6
JournalMicroporous and Mesoporous Materials
DOIs
StatePublished - 1 Jan 1999
Externally publishedYes

Fingerprint

Anionic surfactants
Aluminum
zirconium oxides
Surface-Active Agents
Zirconia
surfactants
aluminum
Porosity
porosity
coatings
Coatings
Aluminum Oxide
alkoxides
Crystallization
Zirconium
Crystal lattices
hydrolysis
sulfates
Hydrolysis
phosphates

Cite this

Zhao, E. ; Hardcastle, S. E. ; Pacheco, G. ; Garcia, A. ; Blumenfeld, A. L. ; Fripiat, J. J. / Aluminum-doped mesoporous zirconia obtained from anionic surfactants. In: Microporous and Mesoporous Materials. 1999 ; pp. 9-21.
@article{f99119c29b6c4f53a76a2cc18b806128,
title = "Aluminum-doped mesoporous zirconia obtained from anionic surfactants",
abstract = "Mesoporous sulfated and oxophosphated zirconia obtained at low pH from dodecyl sulfate and phosphate, respectively, and from zirconium isopropoxide were doped with aluminum. Aluminum is produced by the simultaneous hydrolysis of aluminum alkoxide.In sulfated zirconia, aluminum forms a coating layer of amorphous alumina, but it does not seem to be introduced into the zirconia lattice. On the other hand, Al enters the lattice of oxophosphate, in addition to the formation of the coating layer. A maximum ratio of Al/Zr≈0.04 can be reached in the lattice. The introduction of aluminum into the lattice prevents the crystallization of the oxophosphate at 900°C, and helps to preserve the surface area and porosity of the sulfated zirconia above 500°C. The difference in morphology of the aluminated and phosphated zirconia and that of the nonaluminated corresponding samples parallels the observations made on porosity. {\circledC} 1999 Elsevier Science B.V.",
author = "E. Zhao and Hardcastle, {S. E.} and G. Pacheco and A. Garcia and Blumenfeld, {A. L.} and Fripiat, {J. J.}",
year = "1999",
month = "1",
day = "1",
doi = "10.1016/S1387-1811(99)00053-0",
language = "American English",
pages = "9--21",
journal = "Microporous and Mesoporous Materials",
issn = "1387-1811",
publisher = "Elsevier",

}

Aluminum-doped mesoporous zirconia obtained from anionic surfactants. / Zhao, E.; Hardcastle, S. E.; Pacheco, G.; Garcia, A.; Blumenfeld, A. L.; Fripiat, J. J.

In: Microporous and Mesoporous Materials, 01.01.1999, p. 9-21.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Aluminum-doped mesoporous zirconia obtained from anionic surfactants

AU - Zhao, E.

AU - Hardcastle, S. E.

AU - Pacheco, G.

AU - Garcia, A.

AU - Blumenfeld, A. L.

AU - Fripiat, J. J.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Mesoporous sulfated and oxophosphated zirconia obtained at low pH from dodecyl sulfate and phosphate, respectively, and from zirconium isopropoxide were doped with aluminum. Aluminum is produced by the simultaneous hydrolysis of aluminum alkoxide.In sulfated zirconia, aluminum forms a coating layer of amorphous alumina, but it does not seem to be introduced into the zirconia lattice. On the other hand, Al enters the lattice of oxophosphate, in addition to the formation of the coating layer. A maximum ratio of Al/Zr≈0.04 can be reached in the lattice. The introduction of aluminum into the lattice prevents the crystallization of the oxophosphate at 900°C, and helps to preserve the surface area and porosity of the sulfated zirconia above 500°C. The difference in morphology of the aluminated and phosphated zirconia and that of the nonaluminated corresponding samples parallels the observations made on porosity. © 1999 Elsevier Science B.V.

AB - Mesoporous sulfated and oxophosphated zirconia obtained at low pH from dodecyl sulfate and phosphate, respectively, and from zirconium isopropoxide were doped with aluminum. Aluminum is produced by the simultaneous hydrolysis of aluminum alkoxide.In sulfated zirconia, aluminum forms a coating layer of amorphous alumina, but it does not seem to be introduced into the zirconia lattice. On the other hand, Al enters the lattice of oxophosphate, in addition to the formation of the coating layer. A maximum ratio of Al/Zr≈0.04 can be reached in the lattice. The introduction of aluminum into the lattice prevents the crystallization of the oxophosphate at 900°C, and helps to preserve the surface area and porosity of the sulfated zirconia above 500°C. The difference in morphology of the aluminated and phosphated zirconia and that of the nonaluminated corresponding samples parallels the observations made on porosity. © 1999 Elsevier Science B.V.

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0033204407&origin=inward

UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=0033204407&origin=inward

U2 - 10.1016/S1387-1811(99)00053-0

DO - 10.1016/S1387-1811(99)00053-0

M3 - Article

SP - 9

EP - 21

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

SN - 1387-1811

ER -