Pore structure evolution of lanthana-alumina systems prepared through coprecipitation

Jalajakumari Nair; Padmakumar Nair; Fujio Mizukami; Jan G. Van Ommen; Giel B.M. Doesburg; Julian R.H. Ross; Anthonie J. Burggraaf

doi:10.1111/j.1151-2916.2000.tb01494.x

Pore structure evolution of lanthana-alumina systems prepared through coprecipitation

Jalajakumari Nair, Padmakumar Nair, Fujio Mizukami, Jan G. Van Ommen, Giel B.M. Doesburg, Julian R.H. Ross, Anthonie J. Burggraaf

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Abstract

Pure Al₂O₃ and different compositions of La₂O₃-Al₂O₃ samples have been prepared through coprecipitation. Even after heating at 1300 °C, the compositions La₂O₃·11Al₂O₃ and La₂O₃·13Al₂O₃ had higher surface area compared to the pure Al₂O₃ and the La₂O₃·Al₂O₃ composition. Ethanol washing is an effective way for improving the textural stability of pure Al₂O₃ and La₂O₃-Al₂O₃ samples. The effect of steam on the thermal stability of La₂O₃·11Al₂O₃ has also been studied. La₂O₃·11Al₂O₃ sample is found to be stable in steam.

Original language	English
Pages (from-to)	1942-1946
Number of pages	5
Journal	Journal of the American Ceramic Society
Volume	83
Issue number	8
DOIs	https://doi.org/10.1111/j.1151-2916.2000.tb01494.x
Publication status	Published - Aug 2000

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title = "Pore structure evolution of lanthana-alumina systems prepared through coprecipitation",

abstract = "Pure Al2O3 and different compositions of La2O3-Al2O3 samples have been prepared through coprecipitation. Even after heating at 1300 °C, the compositions La2O3·11Al2O3 and La2O3·13Al2O3 had higher surface area compared to the pure Al2O3 and the La2O3·Al2O3 composition. Ethanol washing is an effective way for improving the textural stability of pure Al2O3 and La2O3-Al2O3 samples. The effect of steam on the thermal stability of La2O3·11Al2O3 has also been studied. La2O3·11Al2O3 sample is found to be stable in steam.",

author = "Jalajakumari Nair and Padmakumar Nair and Fujio Mizukami and {Van Ommen}, {Jan G.} and Doesburg, {Giel B.M.} and Ross, {Julian R.H.} and Burggraaf, {Anthonie J.}",

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AU - Nair, Jalajakumari

AU - Nair, Padmakumar

AU - Mizukami, Fujio

AU - Van Ommen, Jan G.

AU - Doesburg, Giel B.M.

AU - Ross, Julian R.H.

AU - Burggraaf, Anthonie J.

PY - 2000/8

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AB - Pure Al2O3 and different compositions of La2O3-Al2O3 samples have been prepared through coprecipitation. Even after heating at 1300 °C, the compositions La2O3·11Al2O3 and La2O3·13Al2O3 had higher surface area compared to the pure Al2O3 and the La2O3·Al2O3 composition. Ethanol washing is an effective way for improving the textural stability of pure Al2O3 and La2O3-Al2O3 samples. The effect of steam on the thermal stability of La2O3·11Al2O3 has also been studied. La2O3·11Al2O3 sample is found to be stable in steam.

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Pore structure evolution of lanthana-alumina systems prepared through coprecipitation

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