High-temperature catalyst supports and ceramic membranes: metastability and particle packing

Padmakumar Nair; Fujio Mizukami; Tatsuya Okubo; Jalajakumari Nair; Klaas Keizer; Anthonie J. Burggraaf

doi:10.1002/aic.690431316

High-temperature catalyst supports and ceramic membranes: metastability and particle packing

Padmakumar Nair, Fujio Mizukami, Tatsuya Okubo, Jalajakumari Nair, Klaas Keizer, Anthonie J. Burggraaf

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Abstract

Parameters and/or processes responsible for the stability of catalyst supports and ceramic membranes are discussed. Two major parameters/processes were identified which are responsible for the stability of sol-gel derived nanostructured oxides at elevated temperatures. They are metastable-to-stable phase transformation and structure and packing of primary particles within the aggregate. Based on these observations, strategies to develop thermostable nanostructured oxides for high-temperature membrane and catalyst applications are discussed by taking titania and titania-alumina nanocomposites as examples.

Original language	English
Pages (from-to)	2710-2714
Number of pages	5
Journal	AIChE journal
Volume	43
Issue number	S11
DOIs	https://doi.org/10.1002/aic.690431316
Publication status	Published - 1997

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title = "High-temperature catalyst supports and ceramic membranes: metastability and particle packing",

abstract = "Parameters and/or processes responsible for the stability of catalyst supports and ceramic membranes are discussed. Two major parameters/processes were identified which are responsible for the stability of sol-gel derived nanostructured oxides at elevated temperatures. They are metastable-to-stable phase transformation and structure and packing of primary particles within the aggregate. Based on these observations, strategies to develop thermostable nanostructured oxides for high-temperature membrane and catalyst applications are discussed by taking titania and titania-alumina nanocomposites as examples.",

author = "Padmakumar Nair and Fujio Mizukami and Tatsuya Okubo and Jalajakumari Nair and Klaas Keizer and Burggraaf, {Anthonie J.}",

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T2 - metastability and particle packing

AU - Nair, Padmakumar

AU - Mizukami, Fujio

AU - Okubo, Tatsuya

AU - Nair, Jalajakumari

AU - Keizer, Klaas

AU - Burggraaf, Anthonie J.

PY - 1997

Y1 - 1997

N2 - Parameters and/or processes responsible for the stability of catalyst supports and ceramic membranes are discussed. Two major parameters/processes were identified which are responsible for the stability of sol-gel derived nanostructured oxides at elevated temperatures. They are metastable-to-stable phase transformation and structure and packing of primary particles within the aggregate. Based on these observations, strategies to develop thermostable nanostructured oxides for high-temperature membrane and catalyst applications are discussed by taking titania and titania-alumina nanocomposites as examples.

AB - Parameters and/or processes responsible for the stability of catalyst supports and ceramic membranes are discussed. Two major parameters/processes were identified which are responsible for the stability of sol-gel derived nanostructured oxides at elevated temperatures. They are metastable-to-stable phase transformation and structure and packing of primary particles within the aggregate. Based on these observations, strategies to develop thermostable nanostructured oxides for high-temperature membrane and catalyst applications are discussed by taking titania and titania-alumina nanocomposites as examples.

U2 - 10.1002/aic.690431316

DO - 10.1002/aic.690431316

M3 - Article

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VL - 43

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JF - AIChE journal

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High-temperature catalyst supports and ceramic membranes: metastability and particle packing

Abstract

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