CIESC Journal

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一种新型的混合导电型致密透氧膜

徐南平; 李世光; 金万勤; 时钧   

  1. Membrane Science & Technology Research Center, Nanjing University of Chemical Technology,
    Nanjing 210009, China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2000-09-28 发布日期:2000-09-28
  • 通讯作者: 徐南平

A Novel Dense Mixed-Conducting Membrane for Oxygen Permeation

XU Nanping; LI Shiguang; JIN Wanqin; SHI Jun   

  1. Membrane Science & Technology Research Center, Nanjing University of Chemical Technology,
    Nanjing 210009, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2000-09-28 Published:2000-09-28
  • Contact: XU Nanping

摘要: 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 per meation experiment indicate that the SCFZ membrane is stable at elevated
temperature and low oxygen partial pressure.

关键词: dense membrane;perovskite-related;oxygen permeation;stability

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 per meation experiment indicate that the SCFZ membrane is stable at elevated
temperature and low oxygen partial pressure.

Key words: dense membrane, perovskite-related, oxygen permeation, stability