Preparation and properties of perovskite-dispersed titania membranes

Abstract

Defect-free SrCo 0 8 Fe 0 2 0 3 perovskite-dispersed titania (perovskite-titania) membrane was successfully prepared by sol-gel method combined with wet impregnation process. In this experiment, titania membrane was immersed in a perovskite solution, dried and calcined to obtain perovskite dispersed in titania membrane. The phase composition and membrane morphology of the membrane were characterized by thermogravimetric analysis (TGA), X-Ray Diffraction (XRD) spectroscopy, Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM). The TEM result demonstrated that perovskite particles were well-dispersed among the titania particles. The SEM analysis showed that a uniform membrane approximately 0.5 μm thick on titania support was obtained after multiple coatings and calcination at 400°C. 0 2 and N 2 permeability across the perovskite-titania membrane was measured to investigate membrane performance. From the permeability result, both gases appeared to decrease as the operating temperature increased, indicating that surface diffusion gradually reduced. The separation of 0 2 from its binary mixtures containing N 2 was possible because the value of separation factor N 2 /0 2 was slightly higher than the theoretical Knudsen diffusion. © 2010 Asian Network for Scientific Information.

Citation

Sani, N. A., Ahmad, A. L., & Zein, S. H. (2010). Preparation and properties of perovskite-dispersed titania membranes. Journal of applied sciences (Asian Network for Scientific Information), 10(12), 1097-1103. https://doi.org/10.3923/jas.2010.1097.1103

• Journal Article Type: Article
• Publication Date: Jan 1, 2010
• Deposit Date: Jul 7, 2020
• Journal: Journal of Applied Sciences
• Print ISSN: 1812-5654
• Publisher: Asian Network for Scientific Information (ANSINET)
• Peer Reviewed: Peer Reviewed
• Volume: 10
• Issue: 12
• Pages: 1097-1103
• DOI: https://doi.org/10.3923/jas.2010.1097.1103
• Keywords: Titania membrane; Perovskite; Sol-gel method; Characterization; Morphology; Gas permeability
• Public URL: https://hull-repository.worktribe.com/output/796095
• Publisher URL: https://scialert.net/abstract/?doi=jas.2010.1097.1103