Title of article
Oxygen ion diffusion measurements in Bi0.775La0.225O1.5
Author/Authors
Kotsantonis، نويسنده , , Sotirios and Kilner، نويسنده , , J.A.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2011
Pages
4
From page
168
To page
171
Abstract
The oxygen transport properties of the Bi0.775La0.225O1.5 electrolyte material have been investigated. Isotopic exchange depth profiling (IEDP) technique with secondary ion mass spectrometry (SIMS) was used in order to measure the oxygen tracer diffusion coefficient D. The activation energy for oxygen tracer diffusion was found to be 115 ± 2 kJ/mol (1.19 ± 0.02 eV). The measured D values were converted using the Nernst–Einstein relationship to conductivity and compared with data from AC Impedance. The agreement of the two sets of data implies that the material is an oxygen ion conductor.
Keywords
oxygen diffusion , Bismuth-based materials , ionic conductivity , Fast oxide ion conductors , SIMS
Journal title
Solid State Ionics
Serial Year
2011
Journal title
Solid State Ionics
Record number
1710504
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