Homogeneous porous perovskite supports for thin dense oxygen separation membranes

L.M. van der Haar, H. Verweij

Research output: Contribution to journalArticleAcademicpeer-review

27 Citations (Scopus)

Abstract

Porous La1−xSrxCoO3−δ substrates (x=0.7, 0.5 and 0.2) were prepared as supports for thin mixed ionic-electronic conducting perovskite membranes. The preparation method is based on pyrolythic powder preparation, followed by high temperature calcination to reduce the sinter activity of the powder. Subsequently, the powder is homogenised by sieving and clarification through sedimentation. After isostatic pressing followed by sintering, the supports were 30% porous with a mean pore diameter of around 1 μm for the compositions with x=0.7 and 0.5. A coating of the same compositions as the support was applied to improve the surface morphology. At room temperature, the oxygen flux through the supports was 1.4×10−4 and 2.0×10−4 mole cm−2 s−1 for x=0.7 and x=0.5 respectively, at an absolute pressure difference of 1 bar. For the composition with x=0.2, the values of the pore diameter and oxygen flux were somewhat lower.
Original languageUndefined
Pages (from-to)147-155
Number of pages9
JournalJournal of membrane science
Volume180
Issue number1
DOIs
Publication statusPublished - 2000

Keywords

  • METIS-105511
  • Porous perovskite supports
  • Powder processing
  • Oxygen separation membranes
  • Lanthanum strontium cobalt oxide
  • IR-74379

Cite this

van der Haar, L.M. ; Verweij, H. / Homogeneous porous perovskite supports for thin dense oxygen separation membranes. In: Journal of membrane science. 2000 ; Vol. 180, No. 1. pp. 147-155.
@article{918f5627057a4eda9fa81c77b3eca618,
title = "Homogeneous porous perovskite supports for thin dense oxygen separation membranes",
abstract = "Porous La1−xSrxCoO3−δ substrates (x=0.7, 0.5 and 0.2) were prepared as supports for thin mixed ionic-electronic conducting perovskite membranes. The preparation method is based on pyrolythic powder preparation, followed by high temperature calcination to reduce the sinter activity of the powder. Subsequently, the powder is homogenised by sieving and clarification through sedimentation. After isostatic pressing followed by sintering, the supports were 30{\%} porous with a mean pore diameter of around 1 μm for the compositions with x=0.7 and 0.5. A coating of the same compositions as the support was applied to improve the surface morphology. At room temperature, the oxygen flux through the supports was 1.4×10−4 and 2.0×10−4 mole cm−2 s−1 for x=0.7 and x=0.5 respectively, at an absolute pressure difference of 1 bar. For the composition with x=0.2, the values of the pore diameter and oxygen flux were somewhat lower.",
keywords = "METIS-105511, Porous perovskite supports, Powder processing, Oxygen separation membranes, Lanthanum strontium cobalt oxide, IR-74379",
author = "{van der Haar}, L.M. and H. Verweij",
year = "2000",
doi = "10.1016/S0376-7388(00)00528-7",
language = "Undefined",
volume = "180",
pages = "147--155",
journal = "Journal of membrane science",
issn = "0376-7388",
publisher = "Elsevier",
number = "1",

}

Homogeneous porous perovskite supports for thin dense oxygen separation membranes. / van der Haar, L.M.; Verweij, H.

In: Journal of membrane science, Vol. 180, No. 1, 2000, p. 147-155.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Homogeneous porous perovskite supports for thin dense oxygen separation membranes

AU - van der Haar, L.M.

AU - Verweij, H.

PY - 2000

Y1 - 2000

N2 - Porous La1−xSrxCoO3−δ substrates (x=0.7, 0.5 and 0.2) were prepared as supports for thin mixed ionic-electronic conducting perovskite membranes. The preparation method is based on pyrolythic powder preparation, followed by high temperature calcination to reduce the sinter activity of the powder. Subsequently, the powder is homogenised by sieving and clarification through sedimentation. After isostatic pressing followed by sintering, the supports were 30% porous with a mean pore diameter of around 1 μm for the compositions with x=0.7 and 0.5. A coating of the same compositions as the support was applied to improve the surface morphology. At room temperature, the oxygen flux through the supports was 1.4×10−4 and 2.0×10−4 mole cm−2 s−1 for x=0.7 and x=0.5 respectively, at an absolute pressure difference of 1 bar. For the composition with x=0.2, the values of the pore diameter and oxygen flux were somewhat lower.

AB - Porous La1−xSrxCoO3−δ substrates (x=0.7, 0.5 and 0.2) were prepared as supports for thin mixed ionic-electronic conducting perovskite membranes. The preparation method is based on pyrolythic powder preparation, followed by high temperature calcination to reduce the sinter activity of the powder. Subsequently, the powder is homogenised by sieving and clarification through sedimentation. After isostatic pressing followed by sintering, the supports were 30% porous with a mean pore diameter of around 1 μm for the compositions with x=0.7 and 0.5. A coating of the same compositions as the support was applied to improve the surface morphology. At room temperature, the oxygen flux through the supports was 1.4×10−4 and 2.0×10−4 mole cm−2 s−1 for x=0.7 and x=0.5 respectively, at an absolute pressure difference of 1 bar. For the composition with x=0.2, the values of the pore diameter and oxygen flux were somewhat lower.

KW - METIS-105511

KW - Porous perovskite supports

KW - Powder processing

KW - Oxygen separation membranes

KW - Lanthanum strontium cobalt oxide

KW - IR-74379

U2 - 10.1016/S0376-7388(00)00528-7

DO - 10.1016/S0376-7388(00)00528-7

M3 - Article

VL - 180

SP - 147

EP - 155

JO - Journal of membrane science

JF - Journal of membrane science

SN - 0376-7388

IS - 1

ER -