| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1499687 | Scripta Materialia | 2011 | 4 Pages |
Abstract
The oxygen ion conductivity, attributed to an oxygen vacancy mechanism, of yttria-stabilized zirconia membranes used in solid oxide fuel cells is restricted due to trapping limitations. In this work, a high concentration of oxygen vacancies has been deliberately introduced into nanocrystalline stabilizer-free zirconia through ion-irradiation. Oxygen vacancies with different charge states can be produced by varying irradiation temperatures. Due to the reduced trapping sites and high oxygen vacancy concentration, this work suggests that the efficiency of solid oxide fuel cells can be improved.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Philip D. Edmondson, William J. Weber, Fereydoon Namavar, Yanwen Zhang,