| Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2011: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
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| Research Abstract |
Oxygen separation using mixed-conducting perovskite-type oxides have been attracting much attention as a cost-effective, environmentally benign method to produce oxygen-enriched air. One major advantage of this technology is that oxygen can be separated from air by oxygen concentration gradients. Any electrodes and external applied voltages are not required. In this project, we focused on Fe-based perovskite-type oxides such as Ba0.95La0.05FeO3(BLF) that shows good oxygen permeation properties and stability. We found that controlling the membrane structure by depositing oxygen desorption layers significantly improves the oxygen permeation properties. The composition of the oxygen desorption layers was also influential factors for oxygen permeation. The SIMS (Secondary Ion Mass Spectrometry) analysis using stable isotope 18O2 as a tracer revealed the oxygen permeation mechanism in BLF membranes.
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