Improving oxygen permeability in SrFeCo0.5Ox asymmetric membranes by modifying support-layer porous structure

Masayuki Ikeguchi, Kentaro Ishii, Yasushi Sekine, Eiichi Kikuchi, Masahiko Matsukata

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Disk-type SrFeCo0.5Ox asymmetric membranes were prepared for high-temperature oxygen separation using both a previously reported solid state technique in which ethyl cellulose is introduced and then removed by calcination to produce a porous support layer and a modified technique in which carbon fiber is added to the ethyl cellulose. The oxygen permeabilities of the resulting SrFeCo0.5Ox asymmetric membranes were measured at 973-1173 K. The addition of carbon fiber to ethyl cellulose resulted in the improvement of gas diffusivity in the porous support layer, which increased the flux of oxygen through the modified asymmetric membrane.

Original languageEnglish
Pages (from-to)1356-1360
Number of pages5
JournalMaterials Letters
Volume59
Issue number11
DOIs
Publication statusPublished - 2005 May 1

Keywords

  • Asymmetric membrane
  • Carbon fiber
  • Ceramic
  • Ethyl cellulose
  • Oxygen permeation
  • SrFeCoO

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Improving oxygen permeability in SrFeCo<sub>0.5</sub>O<sub>x</sub> asymmetric membranes by modifying support-layer porous structure'. Together they form a unique fingerprint.

  • Cite this