Novel dense mixed-conducting membrane for oxygen permeation

Nanping Xu, Shiguang Li, Wanqin Jin, Jun Shi

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Perovskite type SrCo0.4Fe0.6O3-δ(SCF) membrane and a novel perovskite-related ZrO2 doped SrCo0.4Fe0.6O3-δ(SCFZ) membrane were successfully prepared by isostatic pressing. The sintered membranes were characterized by high-temperature X-ray diffraction (HTXRD) and energy dispersive spectroscopy (EDS). The oxygen permeabilities of membranes have been measured in the temperature range of 923 K to 1243 K. The oxygen permeation flux at 1123 K and activation energy of SCFZ membrane with the thickness of 2 mm are respectively 2.68×10-7 mol·cm-2·min-1 and 97.76 kJ·mol-1. The results of HTXRD in argon atmosphere and the oxygen permeation experiment indicate that the SCFZ membrane is stable at elevated temperature and low oxygen partial pressure.

Original languageEnglish
Pages (from-to)218-223
Number of pages6
JournalChinese Journal of Chemical Engineering
Volume8
Issue number3
StatePublished - Sep 2000

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