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Oxygen selective ceramic hollow fiber membranes

Liu, Shaomin and Gavalas, George R. (2005) Oxygen selective ceramic hollow fiber membranes. Journal of Membrane Science, 246 (1). pp. 103-108. ISSN 0376-7388. doi:10.1016/j.memsci.2004.09.028.

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Oxygen ion conducting Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3−δ) hollow fiber membranes with o.d. 1.15 mm and i.d. 0.71 mm were fabricated using a sequence of extrusion, gelation, coating and sintering steps. The starting ceramic powder was synthesized by combined EDTA–citrate complexing followed by thermal treatment at 900 °C. The powder was then dispersed in a polymer solution, and extruded through a spinerette. After gelation, an additional thin coating of the ceramic powder was applied on the fiber, and sintering was carried out at 1190 °C to obtain the final ceramic membrane. The fibers were characterized by SEM, and tested for air separation at ambient pressure and at temperatures between 700 and 950 °C. The maximum oxygen flux measured was 5.1 mL/min/cm^2 at 950 °C.

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Gavalas, George R.0000-0003-1468-6835
Additional Information:© 2004 Elsevier. Received 22 June 2004; received in revised form 9 September 2004; accepted 15 September 2004; Available online 19 November 2004. The authors gratefully acknowledge the support provided by the Petroleum Research Fund of the American Chemical Society, Grant No. 38162-AC5.
Funding AgencyGrant Number
American Chemical Society Petroleum Research Fund38162-AC5
Subject Keywords:Hollow fiber; Inorganic membrane; Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3−δ); Perovskite; Oxygen separation
Issue or Number:1
Record Number:CaltechAUTHORS:20151006-150210599
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Official Citation:Shaomin Liu, George R. Gavalas, Oxygen selective ceramic hollow fiber membranes, Journal of Membrane Science, Volume 246, Issue 1, 1 January 2005, Pages 103-108, ISSN 0376-7388, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60818
Deposited By: George Porter
Deposited On:07 Oct 2015 14:01
Last Modified:10 Nov 2021 22:39

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