Output details
13 - Electrical and Electronic Engineering, Metallurgy and Materials
Open University
Article title
Anisotropic oxygen diffusion in tetragonal La2NiO4+δ: molecular dynamics calculations
Type
D - Journal article
DOI
Title of journal
Journal of Materials Chemistry
Article number
-
Volume number
20
Issue number
2
First page of article
266
ISSN of journal
0959-9428
Year of publication
2010
Number of additional authors
3
Additional information
The major barriers to commercialisation of Solid Oxide Fuel Cells (SOFC) are cost and durability, both of which can be alleviated by lowering the temperature of operation (~550°C). To do this requires the cathode of the SOFC to be highly active for the electrochemical reduction of oxygen in air at ~550°C.
Atomistic simulations in La2NiO4+d revealed, for the first time, how the cooperative tilting of the oxygen octahedral allows the oxygen interstitial to diffuse. This highly active cathode enables lower temperature operation, which reduces cost and increases durability — the major barriers to commercialisation of SOFCs.
Interdisciplinary
-
Cross-referral requested
-
Research group
None
Proposed double-weighted
No
Double-weighted statement
-
Reserve for a double-weighted output
No
Non-English
No
English abstract
-
