Abstract
We present a new method to improve the oxygen flux properties and stability of Ba0.5Sr0.5Co0.8Fe0.2O 3 - δ tube membrane using a thin layer of La 0.6Sr0.4Ti0.3Fe0.7O 3 - δ as protective coatings. The first relevant result is that the La0.6Sr0.4Ti0.3Fe0.7O 3 - δ protective layer had an extraordinary positive effect on improving the oxygen permeation flux of the tubular Ba0.5Sr 0.5Co0.8Fe0.2O3 - δ membranes. La0.6Sr0.4Ti0.3Fe0.7O 3 - δ-coated Ba0.5Sr0.5Co 0.8Fe0.2O3 - δ tubular membrane showed the highest oxygen permeability with the flux reaching ~ 3 ml cm-2 min-1 (oxygen purity > 99%) at 950 °C in static atmospheric pressure through a 1.0 mm thick membrane.
Original language | English |
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Pages (from-to) | 2168-2170 |
Number of pages | 3 |
Journal | Materials Letters |
Volume | 65 |
Issue number | 14 |
DOIs | |
State | Published - 31 Jul 2011 |
Keywords
- Ceramics
- Membrane
- Oxygen permeation
- Perovskite
- Thin films