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Dual Phase Composite Oxide of Ce 0 . 9 Gd 0 . 1 O 2 ‐ δ-Ba 0 . 5 Sr 0 . 5 Co 0 . 8 Fe 0 . 2 O 3 ‐ δ with Excellent Oxygen Permeation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Xue, Jian Zheng, Qin Wei, Yanying Yuan, Kunjie Li, Zhong Wang, Haihui |
| Copyright Year | 2012 |
| Abstract | A dual phase membrane of 60 wt % Ce0.9Gd0.1O2‐δ-40 wt % Ba0.5Sr0.5Co0.8Fe0.2O3‐δ (60CGO-40BSCF), which exhibits high oxygen permeation, has been prepared. X-ray diffraction (XRD) results reveal that the two oxides are compatible. An oxygen permeation flux of 2.1 mL/(min·cm) is obtained with a 0.5 mm thick membrane under the gradient of air/He at 975 °C, which keeps steady during 180 h of operation. The oxygen permeation process is mainly controlled by the bulk diffusion of oxygen ions in 60CGO-40BSCF membrane when the membrane thickness is higher than 0.8 mm and controlled by both the surface reaction and the bulk diffusion at reduced thickness of ∼0.5 mm as the temperature increased from 800 to 975 °C. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.scut.hhwang.ycym.com/Uploads/201703/58c922681f5f8.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
