Microstructure effect on the oxygen permeation through Ba 0.95La0.05FeO3-δ membranes fabricated by different methods

Ken Watanabe, Subaru Ninomiya, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe, Hajime Haneda, Kengo Shimanoe

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In order to investigate the effect of the microstructure on the oxygen permeation in Ba0.95La0.05FeO3-δ membranes, three different methods such as solid-state reaction, nitrate and acetate decomposition (NAD), and amorphous malic acid precursor (AMP) methods were used to fabricate membranes with different grain sizes. The grain size of the membranes was successfully controlled from 35 to 829 μm2 via sintering at 1175°-1275°C. The oxygen permeation fluxes through the Ba0.95La0.05FeO3-δ membranes increased with a decrease in the grain size. The AMP method, using malic acid as a complexing agent, produced a membrane having the highest oxygen permeability (3.10 cm3·(min·cm2)-1 at 930°C) and the smallest grain size. The results obtained again confirmed the significant importance of microstructure control in designing high-performance oxygen permeable membranes.

Original languageEnglish
Pages (from-to)2012-2017
Number of pages6
JournalJournal of the American Ceramic Society
Volume93
Issue number7
DOIs
Publication statusPublished - Jul 1 2010

Fingerprint

Permeation
microstructure
Oxygen
membrane
Membranes
oxygen
Microstructure
grain size
Acids
Oxygen permeable membranes
acid
Solid state reactions
Nitrates
Acetates
Sintering
effect
method
acetate
Fluxes
Decomposition

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Geology
  • Geochemistry and Petrology
  • Materials Chemistry

Cite this

Microstructure effect on the oxygen permeation through Ba 0.95La0.05FeO3-δ membranes fabricated by different methods. / Watanabe, Ken; Ninomiya, Subaru; Yuasa, Masayoshi; Kida, Tetsuya; Yamazoe, Noboru; Haneda, Hajime; Shimanoe, Kengo.

In: Journal of the American Ceramic Society, Vol. 93, No. 7, 01.07.2010, p. 2012-2017.

Research output: Contribution to journalArticle

Watanabe, Ken ; Ninomiya, Subaru ; Yuasa, Masayoshi ; Kida, Tetsuya ; Yamazoe, Noboru ; Haneda, Hajime ; Shimanoe, Kengo. / Microstructure effect on the oxygen permeation through Ba 0.95La0.05FeO3-δ membranes fabricated by different methods. In: Journal of the American Ceramic Society. 2010 ; Vol. 93, No. 7. pp. 2012-2017.
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AU - Yamazoe, Noboru

AU - Haneda, Hajime

AU - Shimanoe, Kengo

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