Author

Akram La Kilo

Subject

- Sains

Abstract

?-Bi2VO5.5family oxides has potential to play important role in solid oxide fuel cell, especially as the electrolyte due to their high ionic conductivity. In this work, oxide conduction in ?-Bi2VO5.5is modeled based on bond valence sum (BVS) method. In ?-Bi2VO5.5, there are oxide vacancies at the equatorial position in the perovskite-like layers. These vacancies can facilitate oxide movement. The ?-Bi2VO5.5model was built in a primitive structure with the entire V coordination in one layer are tetrahedron and entire V coordination in the next layer are octahedron. Oxygen movement, based on BVS result, mainly occurs in equatorial site i.e. on [140] direction. The minimum achieved BVS value was 1.320, which is considered as a site that has large cavity and facilitates oxygen hopping.

Publisher

2nd International Conference on Instrumentation, Communications, Information Technology, and Biomedical Engineering, IEEE

Contributor

-

Publish

2011

Material Type

ARTIKEL

Right

-