Oxygen ion conducting materials
Patent
·
OSTI ID:1175142
An oxygen ion conducting ceramic oxide that has applications in industry including fuel cells, oxygen pumps, oxygen sensors, and separation membranes. The material is based on the idea that substituting a dopant into the host perovskite lattice of (La,Sr)MnO.sub.3 that prefers a coordination number lower than 6 will induce oxygen ion vacancies to form in the lattice. Because the oxygen ion conductivity of (La,Sr)MnO.sub.3 is low over a very large temperature range, the material exhibits a high overpotential when used. The inclusion of oxygen vacancies into the lattice by doping the material has been found to maintain the desirable properties of (La,Sr)MnO.sub.3, while significantly decreasing the experimentally observed overpotential.
- Research Organization:
- University Of Chicago, Chicago, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- ;
- Other Award/Contract Number:
- W-31-1109-ENG-38
- Assignee:
- University Of Chicago
- Patent Number(s):
- 6,821,498
- Application Number:
- 10/327,502
- OSTI ID:
- 1175142
- Country of Publication:
- United States
- Language:
- English
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