期刊
SEPARATION AND PURIFICATION TECHNOLOGY
卷 80, 期 2, 页码 396-401出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.seppur.2011.04.014
关键词
Hollow fibre membrane; Oxygen permeation; Perovskite; Microstructure
资金
- National High Technology Research and Development Program of China [2006AA03Z464]
- National Natural Science Foundation of China (NNSFC) [20976098]
- Australian Research Council [DP0985578]
- Australian Research Council [DP0985578] Funding Source: Australian Research Council
New honeycomb-structured and gas-tight La(0.6)Sr(0.4)Co(0.2)Fe(0.8)O(3-alpha) (LSCF) perovskite hollow fibre membranes have been developed with an ultra-thin dense layer using phase inversion/sintering technique with an EtOH-NMP mixture as the internal coagulant. By varying the rate of internal precipitation the surface morphology of the hollow fibre could be altered to provide a single thin dense layer and high support surface area. These membranes were able to provide significantly higher O(2) fluxes than conventional types, with an improvement factor up to 15 at 800 degrees C, while maintaining membrane quality and mechanical stability. (C) 2011 Elsevier B.V. All rights reserved.
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