MgO as a non-pyrolyzable pore former in porous membrane supports

A. B. Haugen*, A. Geffroy, Andreas Kaiser, Vanesa Gil

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The gas permeability of Y0.03Zr0.97O2 (3Y-TZP) porous supports from thermoplastic feedstocks has been improved by adding MgO as a non-pyrolyzable pore former. Common pyrolyzable pore formers such as graphite often produce tortuous and narrow pore channels with low gas permeability, limiting the performance of oxygen transport membranes or other membranes relying on gas transport to the active membrane surface. Thermoplastic feedstocks for extrusion of tubular 3Y-TZP supports were prepared with four different amounts of pyrolyzable pore formers and/or MgO as non-pyrolyzable pore former. The MgO was removed after sintering by leaching in acetic acid. With this technique we obtained porosities above 70 vol% and gas permeabilities above 3 10-14 m2. Compared to samples with only pyrolyzable pore formers, the non-pyrolyzable pore former increases the gas permeability and reduces the tortuosity.
Original languageEnglish
JournalJournal of the European Ceramic Society
Volume38
Issue number9
Pages (from-to)3279-3285
ISSN0955-2219
DOIs
Publication statusPublished - 2018

Keywords

  • Gas permeability
  • Oxygen transport membrane
  • Porous ceramic
  • Thermoplastic shaping
  • Y-TZP

Cite this

@article{8d4c461afc2442cb8fdad27be9c5369d,
title = "MgO as a non-pyrolyzable pore former in porous membrane supports",
abstract = "The gas permeability of Y0.03Zr0.97O2 (3Y-TZP) porous supports from thermoplastic feedstocks has been improved by adding MgO as a non-pyrolyzable pore former. Common pyrolyzable pore formers such as graphite often produce tortuous and narrow pore channels with low gas permeability, limiting the performance of oxygen transport membranes or other membranes relying on gas transport to the active membrane surface. Thermoplastic feedstocks for extrusion of tubular 3Y-TZP supports were prepared with four different amounts of pyrolyzable pore formers and/or MgO as non-pyrolyzable pore former. The MgO was removed after sintering by leaching in acetic acid. With this technique we obtained porosities above 70 vol{\%} and gas permeabilities above 3 10-14 m2. Compared to samples with only pyrolyzable pore formers, the non-pyrolyzable pore former increases the gas permeability and reduces the tortuosity.",
keywords = "Gas permeability, Oxygen transport membrane, Porous ceramic, Thermoplastic shaping, Y-TZP",
author = "Haugen, {A. B.} and A. Geffroy and Andreas Kaiser and Vanesa Gil",
year = "2018",
doi = "10.1016/j.jeurceramsoc.2018.02.039",
language = "English",
volume = "38",
pages = "3279--3285",
journal = "Journal of the European Ceramic Society",
issn = "0955-2219",
publisher = "Elsevier",
number = "9",

}

MgO as a non-pyrolyzable pore former in porous membrane supports. / Haugen, A. B.; Geffroy, A.; Kaiser, Andreas; Gil, Vanesa.

In: Journal of the European Ceramic Society, Vol. 38, No. 9, 2018, p. 3279-3285.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - MgO as a non-pyrolyzable pore former in porous membrane supports

AU - Haugen, A. B.

AU - Geffroy, A.

AU - Kaiser, Andreas

AU - Gil, Vanesa

PY - 2018

Y1 - 2018

N2 - The gas permeability of Y0.03Zr0.97O2 (3Y-TZP) porous supports from thermoplastic feedstocks has been improved by adding MgO as a non-pyrolyzable pore former. Common pyrolyzable pore formers such as graphite often produce tortuous and narrow pore channels with low gas permeability, limiting the performance of oxygen transport membranes or other membranes relying on gas transport to the active membrane surface. Thermoplastic feedstocks for extrusion of tubular 3Y-TZP supports were prepared with four different amounts of pyrolyzable pore formers and/or MgO as non-pyrolyzable pore former. The MgO was removed after sintering by leaching in acetic acid. With this technique we obtained porosities above 70 vol% and gas permeabilities above 3 10-14 m2. Compared to samples with only pyrolyzable pore formers, the non-pyrolyzable pore former increases the gas permeability and reduces the tortuosity.

AB - The gas permeability of Y0.03Zr0.97O2 (3Y-TZP) porous supports from thermoplastic feedstocks has been improved by adding MgO as a non-pyrolyzable pore former. Common pyrolyzable pore formers such as graphite often produce tortuous and narrow pore channels with low gas permeability, limiting the performance of oxygen transport membranes or other membranes relying on gas transport to the active membrane surface. Thermoplastic feedstocks for extrusion of tubular 3Y-TZP supports were prepared with four different amounts of pyrolyzable pore formers and/or MgO as non-pyrolyzable pore former. The MgO was removed after sintering by leaching in acetic acid. With this technique we obtained porosities above 70 vol% and gas permeabilities above 3 10-14 m2. Compared to samples with only pyrolyzable pore formers, the non-pyrolyzable pore former increases the gas permeability and reduces the tortuosity.

KW - Gas permeability

KW - Oxygen transport membrane

KW - Porous ceramic

KW - Thermoplastic shaping

KW - Y-TZP

U2 - 10.1016/j.jeurceramsoc.2018.02.039

DO - 10.1016/j.jeurceramsoc.2018.02.039

M3 - Journal article

VL - 38

SP - 3279

EP - 3285

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

SN - 0955-2219

IS - 9

ER -