Asymmetric La0.6Sr0.4Co0.2Fe0.8O3-δ membrane with reduced concentration polarization prepared by phase-inversion tape casting and warm pressing

Yuqing Meng, Wei He, Xi-xiang Li, Jianfeng Gao, Zhongliang Zhan, Jianxin Yi, Chusheng Chen, Henricus J.M. Bouwmeester

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)

Abstract

A three-layered La0.6Sr0.4Co0.2Fe0.8O3-δ membrane was prepared via a modified phase-inversion tape casting method combined with warm pressing and screen-printing. The membrane comprised a thick porous support with straight and large open finger-like pores, a dense separation layer with reduced thickness of 40 μm, and a thin catalytic layer. Oxygen permeation performance was studied under various conditions, and compared with that for a similar membrane, the support of which was fabricated by conventional tape casting and associated with a distinctly different pore structure. Under an air/He gradient, an oxygen flux as high as 1.54 ml (STP) cm−2 min−1 was achieved at 900 °C for the former membrane, about 2.5 times higher than that for the latter. When pure oxygen was used instead of air as the feed gas, their oxygen permeation fluxes were only slightly differed. The obtained results clearly indicated serious presence of concentration polarization in air feed gas in the membrane made by conventional tape casting, which was markedly reduced in the phase-inversion derived membrane. The significantly improved oxygen permeation performance of the latter membrane could be ascribed to its unique pore structure, which allowed fast gas transport through the porous support.
Original languageEnglish
Pages (from-to)11-18
JournalJournal of membrane science
Volume533
DOIs
Publication statusPublished - 2017

Fingerprint

pressing
Tapes
tapes
Casting
Polarization
inversions
membranes
Membranes
polarization
Oxygen
Permeation
oxygen
Gases
Air
Pore structure
porosity
air
Fluxes
gas transport
Printing

Keywords

  • METIS-322141
  • IR-104631

Cite this

Meng, Yuqing ; He, Wei ; Li, Xi-xiang ; Gao, Jianfeng ; Zhan, Zhongliang ; Yi, Jianxin ; Chen, Chusheng ; Bouwmeester, Henricus J.M. / Asymmetric La0.6Sr0.4Co0.2Fe0.8O3-δ membrane with reduced concentration polarization prepared by phase-inversion tape casting and warm pressing. In: Journal of membrane science. 2017 ; Vol. 533. pp. 11-18.
@article{664dd364cd7e4f9bb531bd6af38ebf96,
title = "Asymmetric La0.6Sr0.4Co0.2Fe0.8O3-δ membrane with reduced concentration polarization prepared by phase-inversion tape casting and warm pressing",
abstract = "A three-layered La0.6Sr0.4Co0.2Fe0.8O3-δ membrane was prepared via a modified phase-inversion tape casting method combined with warm pressing and screen-printing. The membrane comprised a thick porous support with straight and large open finger-like pores, a dense separation layer with reduced thickness of 40 μm, and a thin catalytic layer. Oxygen permeation performance was studied under various conditions, and compared with that for a similar membrane, the support of which was fabricated by conventional tape casting and associated with a distinctly different pore structure. Under an air/He gradient, an oxygen flux as high as 1.54 ml (STP) cm−2 min−1 was achieved at 900 °C for the former membrane, about 2.5 times higher than that for the latter. When pure oxygen was used instead of air as the feed gas, their oxygen permeation fluxes were only slightly differed. The obtained results clearly indicated serious presence of concentration polarization in air feed gas in the membrane made by conventional tape casting, which was markedly reduced in the phase-inversion derived membrane. The significantly improved oxygen permeation performance of the latter membrane could be ascribed to its unique pore structure, which allowed fast gas transport through the porous support.",
keywords = "METIS-322141, IR-104631",
author = "Yuqing Meng and Wei He and Xi-xiang Li and Jianfeng Gao and Zhongliang Zhan and Jianxin Yi and Chusheng Chen and Bouwmeester, {Henricus J.M.}",
year = "2017",
doi = "10.1016/j.memsci.2017.03.025",
language = "English",
volume = "533",
pages = "11--18",
journal = "Journal of membrane science",
issn = "0376-7388",
publisher = "Elsevier",

}

Asymmetric La0.6Sr0.4Co0.2Fe0.8O3-δ membrane with reduced concentration polarization prepared by phase-inversion tape casting and warm pressing. / Meng, Yuqing; He, Wei; Li, Xi-xiang; Gao, Jianfeng; Zhan, Zhongliang; Yi, Jianxin; Chen, Chusheng; Bouwmeester, Henricus J.M.

In: Journal of membrane science, Vol. 533, 2017, p. 11-18.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Asymmetric La0.6Sr0.4Co0.2Fe0.8O3-δ membrane with reduced concentration polarization prepared by phase-inversion tape casting and warm pressing

AU - Meng, Yuqing

AU - He, Wei

AU - Li, Xi-xiang

AU - Gao, Jianfeng

AU - Zhan, Zhongliang

AU - Yi, Jianxin

AU - Chen, Chusheng

AU - Bouwmeester, Henricus J.M.

PY - 2017

Y1 - 2017

N2 - A three-layered La0.6Sr0.4Co0.2Fe0.8O3-δ membrane was prepared via a modified phase-inversion tape casting method combined with warm pressing and screen-printing. The membrane comprised a thick porous support with straight and large open finger-like pores, a dense separation layer with reduced thickness of 40 μm, and a thin catalytic layer. Oxygen permeation performance was studied under various conditions, and compared with that for a similar membrane, the support of which was fabricated by conventional tape casting and associated with a distinctly different pore structure. Under an air/He gradient, an oxygen flux as high as 1.54 ml (STP) cm−2 min−1 was achieved at 900 °C for the former membrane, about 2.5 times higher than that for the latter. When pure oxygen was used instead of air as the feed gas, their oxygen permeation fluxes were only slightly differed. The obtained results clearly indicated serious presence of concentration polarization in air feed gas in the membrane made by conventional tape casting, which was markedly reduced in the phase-inversion derived membrane. The significantly improved oxygen permeation performance of the latter membrane could be ascribed to its unique pore structure, which allowed fast gas transport through the porous support.

AB - A three-layered La0.6Sr0.4Co0.2Fe0.8O3-δ membrane was prepared via a modified phase-inversion tape casting method combined with warm pressing and screen-printing. The membrane comprised a thick porous support with straight and large open finger-like pores, a dense separation layer with reduced thickness of 40 μm, and a thin catalytic layer. Oxygen permeation performance was studied under various conditions, and compared with that for a similar membrane, the support of which was fabricated by conventional tape casting and associated with a distinctly different pore structure. Under an air/He gradient, an oxygen flux as high as 1.54 ml (STP) cm−2 min−1 was achieved at 900 °C for the former membrane, about 2.5 times higher than that for the latter. When pure oxygen was used instead of air as the feed gas, their oxygen permeation fluxes were only slightly differed. The obtained results clearly indicated serious presence of concentration polarization in air feed gas in the membrane made by conventional tape casting, which was markedly reduced in the phase-inversion derived membrane. The significantly improved oxygen permeation performance of the latter membrane could be ascribed to its unique pore structure, which allowed fast gas transport through the porous support.

KW - METIS-322141

KW - IR-104631

U2 - 10.1016/j.memsci.2017.03.025

DO - 10.1016/j.memsci.2017.03.025

M3 - Article

VL - 533

SP - 11

EP - 18

JO - Journal of membrane science

JF - Journal of membrane science

SN - 0376-7388

ER -