Influence of calcination temperature and perovskite concentration on the morphology, gas permeance and selectivity of perovskite-titania membranes

Ahmad, A. L.; Sani, N. A Abdullah; Zein, S. H S

Abstract

Defect-free titania membranes doped with different concentrations of SrCo 0.8 Fe 0.2 O 3 perovskite were successfully prepared using a sol-gel technique combined with a wet impregnation process. The titania membranes were immersed in a perovskite solution, dried, andcalcined to obtain perovskite affixed inside theporoustitaniamembranes.Thephase transformation of titania and perovskite was investigated by varying the calcination temperature from 300 to 500 °C. The effect of perovskite concentration on the titania membrane morphology is described in detail. The results showed that calcination at 400 °C was preferable for preparing a perovskite-titania membrane with fully crystallized anatase and perovskite phases. The performance of the perovskite-titania membranes with various perovskite concentrations in terms of the O 2 and N 2 permeances and O 2 /N 2 selectivity was also studied. We determined that the perovskite concentration affected the gas permeation performance of the membrane and that the P3/titania membrane provided the highest gas permeance and selectivity. © 2011 Göller Verlag.

Citation

Ahmad, A. L., Sani, N. A. A., & Zein, S. H. S. (2011). Influence of calcination temperature and perovskite concentration on the morphology, gas permeance and selectivity of perovskite-titania membranes. Journal of ceramic science and technology an international journal reporting on the synthesis, structure and properties of ceramics, 2(1), 9-14. https://doi.org/10.4416/JCST2010-00026

• Journal Article Type: Article
• Acceptance Date: Sep 24, 2010
• Publication Date: Dec 1, 2011
• Deposit Date: Jul 7, 2020
• Publicly Available Date: Jul 27, 2020
• Journal: Journal of Ceramic Science and Technology
• Print ISSN: 2190-9385
• Peer Reviewed: Peer Reviewed
• Volume: 2
• Issue: 1
• Pages: 9-14
• DOI: https://doi.org/10.4416/JCST2010-00026
• Keywords: Titania membrane; Perovskite; Calcination temperature; Concentration; Morphology; Phase structure
• Public URL: https://hull-repository.worktribe.com/output/549911
• Publisher URL: https://www.ceramic-science.com/articles/all-articles.html?article_id=100049&doi=10.4416/JCST2010-00026