Perovskite-related ZrO2-doped SrCo0.4Fe0.6O3-δ membrane for oxygen permeation

Shiguang Li, Wanqin Jin, Pei Huang, Nanping Xu, Jun Shi, Michael Z.C. Hu, E. Andrew Payzant, Y. H. Ma

Research output: Contribution to journalArticlepeer-review

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Abstract

A typicalperouskite La0.2Sr0.8Co0.2Fe0.8O 3-δ (LSCF) membrane and a novel perovskite-related ZrO2-doped SrCo0.4Fe0.6O3-δ (SCFZ) membrane were successfully prepared. The sintered membranes were characterized by an in-situ high-temperature X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. Oxygen permeabilities of the two dense membranes were measured in the temperature range of 923 to 1,173 K under a fixed oxygen partial pressure gradient. The results of the oxygen permeation experiment and high-temperature X-ray diffraction in argon atmosphere indicate that the perovskite-related SCFZ membrane has higher oxygen fluxes and is stable than that of the LSCF membrane at elevated temperatures and reduced oxygen partial pressures.

Original languageEnglish
Pages (from-to)276-284
Number of pages9
JournalAIChE Journal
Volume45
Issue number2
DOIs
StatePublished - Feb 1999

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