Abstract
The dual-phase Ce0.9Gd0.1O1.95–La0.6Sr0.4Co0.2Fe0.8O3−δ asymmetric membrane was prepared via a phase-inversion tape-casting method. The membrane consisted of a thicker porous support layer and a thinner dense layer. When the dense side of the membrane was coated with a La0.6Sr0.4CoO3−δ catalytic activation layer, the oxygen permeation flux was markedly increased by a factor of 4.1–5.6, reaching 0.45 mL cm−2 min−1 at 900 °C. The flux increase can be attributed to enhanced surface oxygen exhange kinetics.
Original language | English |
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Journal | Materials Letters |
Volume | 137 |
Pages (from-to) | 245–248 |
ISSN | 0167-577X |
DOIs | |
Publication status | Published - 2014 |
Keywords
- Ceramic composites
- Functional
- Oxygen separation
- Membrane
- Phase inversion