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Composite mixed oxide ionic and electronic conductors for hydrogen separation

United States Patent

September 15, 2009
View the Complete Patent at the US Patent & Trademark Office
A mixed ionic and electronic conducting membrane includes a two-phase solid state ceramic composite, wherein the first phase comprises an oxygen ion conductor and the second phase comprises an n-type electronically conductive oxide, wherein the electronically conductive oxide is stable at an oxygen partial pressure as low as 10.sup.-20 atm and has an electronic conductivity of at least 1 S/cm. A hydrogen separation system and related methods using the mixed ionic and electronic conducting membrane are described.
Gopalan; Srikanth (Westborough, MA), Pal; Uday B. (Dover, MA), Karthikeyan; Annamalai (Quincy, MA), Hengdong; Cui (Allston, MA)
Trustees of Boston University (Boston, MA)
11/ 255,650
October 21, 2005
STATEMENT OF GOVERNMENT SUPPORT This invention was made with United States Government Support under Contract Number DE-FC26-03NT41958 awarded by the Department of Energy. The Government has certain rights to this invention.