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Immobilized fluid membranes for gas separation

United States Patent

March 18, 2014
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Provided herein are immobilized liquid membranes for gas separation, methods of preparing such membranes and uses thereof. In one example, the immobilized membrane includes a porous metallic host matrix and an immobilized liquid fluid (such as a silicone oil) that is immobilized within one or more pores included within the porous metallic host matrix. The immobilized liquid membrane is capable of selective permeation of one type of molecule (such as oxygen) over another type of molecule (such as water). In some examples, the selective membrane is incorporated into a device to supply oxygen from ambient air to the device for electrochemical reactions, and at the same time, to block water penetration and electrolyte loss from the device.
Liu; Wei (Richland, WA), Canfield; Nathan L. (Richland, WA), Zhang; Jian (Richland, WA), Li; Xiaohong Shari (Richland, WA), Zhang; Jiguang (Richland, WA)
Battelle Memorial Institute (Richland, WA)
12/ 470,294
May 21, 2009
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT This invention was made with government support under DE-AC0576RL01830 awarded by The Department of Energy. The government has certain rights in the invention.