Characterization and permeation properties of binary SiO2-TiO2 and SiO2-Al2O3 modified gamma-alumina membranes

J.H.A. Hekkink; R.S.A. de Lange; A.A. ten Hoeve; P.J.A.M. Blankenvoorde; K. Keizer; A.J. Burggraaf

doi:10.4028/www.scientific.net/KEM.61-62.375

Characterization and permeation properties of binary SiO₂-TiO₂ and SiO₂-Al₂O₃ modified gamma-alumina membranes

J.H.A. Hekkink^*
, R.S.A. de Lange
, A.A. ten Hoeve
, P.J.A.M. Blankenvoorde
, K. Keizer
, A.J. Burggraaf

^*Corresponding author for this work

Inorganic Materials Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

8 Citations (Scopus)

Abstract

Alumina membranes with a binary top layer consisting of either SiO₂-TiO₂ or SiO₂-Al₂O₃ were prepared. Adsorption/desorption experiments show that both binary systems are microporous (type I isotherms). The porosity for SiO₂-TiO₂ is 15% and for SiO₂-Al₂O₃ 1-2%. Permeability experiments have been performed on these membranes with H₂, CO₂ and CH₄. For membranes with a SiO₂-TiO₂ top layer relatively high permeabilities (2.2*10^-7 mol/m².s.Pa at 28°C and 6.7*10^-7 mol/m².s.Pa at 200°C, respectively) were obtained for H₂. For CO₂ the permeabilities are a factor of 4 lower at 28°C and a factor of 12 lower at 200°C. The permeability of CH₄ is a factor of 4 lower at 28°C compared with H₂. For SiO₂-Al₂O₃, the permeabilities are a factor of three to four lower than those of SiO₂-TiO₂ membranes. All gases show an increase in permeability with increasing temperature and thus an activated transport mechanism prevails.

Original language	English
Title of host publication	Inorganic Membranes ICIM2-91
Subtitle of host publication	Proceedings of the 2nd International Conference on Inorganic Membranes - ICIM2-91
Editors	A.J. Burggraaf, J. Charpin, L. Cot
Publisher	Trans Tech Publications Ltd
Pages	375-378
Number of pages	4
ISBN (Print)	0878496254
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.61-62.375
Publication status	Published - 1 Dec 1991
Event	2nd International Conference on Inorganic Membranes, ICIM 1991 - Montpellier, France Duration: 1 Jul 1991 → 4 Jul 1991 Conference number: 2

Publication series

Name	Key Engineering Materials
Publisher	Trans Tech Publications Ltd
Volume	61-62
ISSN (Print)	1013-9826

Conference

Conference	2nd International Conference on Inorganic Membranes, ICIM 1991
Abbreviated title	ICIM
Country/Territory	France
City	Montpellier
Period	1/07/91 → 4/07/91

Access to Document

10.4028/www.scientific.net/KEM.61-62.375

Cite this

Hekkink, J. H. A., de Lange, R. S. A., ten Hoeve, A. A., Blankenvoorde, P. J. A. M., Keizer, K., & Burggraaf, A. J. (1991). Characterization and permeation properties of binary SiO₂-TiO₂ and SiO₂-Al₂O₃ modified gamma-alumina membranes. In A. J. Burggraaf, J. Charpin, & L. Cot (Eds.), Inorganic Membranes ICIM2-91: Proceedings of the 2nd International Conference on Inorganic Membranes - ICIM2-91 (pp. 375-378). (Key Engineering Materials; Vol. 61-62). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.61-62.375

Hekkink, J.H.A. ; de Lange, R.S.A. ; ten Hoeve, A.A. et al. / Characterization and permeation properties of binary SiO₂-TiO₂ and SiO₂-Al₂O₃ modified gamma-alumina membranes. Inorganic Membranes ICIM2-91: Proceedings of the 2nd International Conference on Inorganic Membranes - ICIM2-91. editor / A.J. Burggraaf ; J. Charpin ; L. Cot. Trans Tech Publications Ltd, 1991. pp. 375-378 (Key Engineering Materials).

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title = "Characterization and permeation properties of binary SiO2-TiO2 and SiO2-Al2O3 modified gamma-alumina membranes",

abstract = "Alumina membranes with a binary top layer consisting of either SiO2-TiO2 or SiO2-Al2O3 were prepared. Adsorption/desorption experiments show that both binary systems are microporous (type I isotherms). The porosity for SiO2-TiO2 is 15\% and for SiO2-Al2O3 1-2\%. Permeability experiments have been performed on these membranes with H2, CO2 and CH4. For membranes with a SiO2-TiO2 top layer relatively high permeabilities (2.2*10-7 mol/m2.s.Pa at 28°C and 6.7*10-7 mol/m2.s.Pa at 200°C, respectively) were obtained for H2. For CO2 the permeabilities are a factor of 4 lower at 28°C and a factor of 12 lower at 200°C. The permeability of CH4 is a factor of 4 lower at 28°C compared with H2. For SiO2-Al2O3, the permeabilities are a factor of three to four lower than those of SiO2-TiO2 membranes. All gases show an increase in permeability with increasing temperature and thus an activated transport mechanism prevails.",

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Hekkink, JHA, de Lange, RSA, ten Hoeve, AA, Blankenvoorde, PJAM, Keizer, K & Burggraaf, AJ 1991, Characterization and permeation properties of binary SiO₂-TiO₂ and SiO₂-Al₂O₃ modified gamma-alumina membranes. in AJ Burggraaf, J Charpin & L Cot (eds), Inorganic Membranes ICIM2-91: Proceedings of the 2nd International Conference on Inorganic Membranes - ICIM2-91. Key Engineering Materials, vol. 61-62, Trans Tech Publications Ltd, pp. 375-378, 2nd International Conference on Inorganic Membranes, ICIM 1991, Montpellier, France, 1/07/91. https://doi.org/10.4028/www.scientific.net/KEM.61-62.375

Characterization and permeation properties of binary SiO₂-TiO₂ and SiO₂-Al₂O₃ modified gamma-alumina membranes. / Hekkink, J.H.A.; de Lange, R.S.A.; ten Hoeve, A.A. et al.
Inorganic Membranes ICIM2-91: Proceedings of the 2nd International Conference on Inorganic Membranes - ICIM2-91. ed. / A.J. Burggraaf; J. Charpin; L. Cot. Trans Tech Publications Ltd, 1991. p. 375-378 (Key Engineering Materials; Vol. 61-62).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - Hekkink, J.H.A.

AU - de Lange, R.S.A.

AU - ten Hoeve, A.A.

AU - Blankenvoorde, P.J.A.M.

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N2 - Alumina membranes with a binary top layer consisting of either SiO2-TiO2 or SiO2-Al2O3 were prepared. Adsorption/desorption experiments show that both binary systems are microporous (type I isotherms). The porosity for SiO2-TiO2 is 15% and for SiO2-Al2O3 1-2%. Permeability experiments have been performed on these membranes with H2, CO2 and CH4. For membranes with a SiO2-TiO2 top layer relatively high permeabilities (2.2*10-7 mol/m2.s.Pa at 28°C and 6.7*10-7 mol/m2.s.Pa at 200°C, respectively) were obtained for H2. For CO2 the permeabilities are a factor of 4 lower at 28°C and a factor of 12 lower at 200°C. The permeability of CH4 is a factor of 4 lower at 28°C compared with H2. For SiO2-Al2O3, the permeabilities are a factor of three to four lower than those of SiO2-TiO2 membranes. All gases show an increase in permeability with increasing temperature and thus an activated transport mechanism prevails.

AB - Alumina membranes with a binary top layer consisting of either SiO2-TiO2 or SiO2-Al2O3 were prepared. Adsorption/desorption experiments show that both binary systems are microporous (type I isotherms). The porosity for SiO2-TiO2 is 15% and for SiO2-Al2O3 1-2%. Permeability experiments have been performed on these membranes with H2, CO2 and CH4. For membranes with a SiO2-TiO2 top layer relatively high permeabilities (2.2*10-7 mol/m2.s.Pa at 28°C and 6.7*10-7 mol/m2.s.Pa at 200°C, respectively) were obtained for H2. For CO2 the permeabilities are a factor of 4 lower at 28°C and a factor of 12 lower at 200°C. The permeability of CH4 is a factor of 4 lower at 28°C compared with H2. For SiO2-Al2O3, the permeabilities are a factor of three to four lower than those of SiO2-TiO2 membranes. All gases show an increase in permeability with increasing temperature and thus an activated transport mechanism prevails.

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Hekkink JHA, de Lange RSA, ten Hoeve AA, Blankenvoorde PJAM, Keizer K, Burggraaf AJ. Characterization and permeation properties of binary SiO₂-TiO₂ and SiO₂-Al₂O₃ modified gamma-alumina membranes. In Burggraaf AJ, Charpin J, Cot L, editors, Inorganic Membranes ICIM2-91: Proceedings of the 2nd International Conference on Inorganic Membranes - ICIM2-91. Trans Tech Publications Ltd. 1991. p. 375-378. (Key Engineering Materials). doi: 10.4028/www.scientific.net/KEM.61-62.375