Temperature-Programmed C18O2 SSITKA for Powders of Fast Oxide-Ion Conductors: Estimation of Oxygen Self-Diffusion coefficients
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Solid State Ionics
ISSN: 0167-2738
|
| Output data |
Year: 2015,
Volume: 271,
Pages: 69-72
Pages count
: 4
DOI:
10.1016/j.ssi.2014.11.004
|
| Tags |
C18O2SSITKA, Doped lanthanum silicates, Doped zirconia, Fast oxide-ion conductors, Oxygen diffusion coefficient |
| Authors |
Sadykov V.
1,2
,
Sadovskaya E.
1,2
,
Bobin A.
1
,
Kharlamova T.
3
,
Uvarov N.
2,4
,
Ulikhin A.
4
,
Argirusis Ch.
5
,
Sourkouni G.
6
,
Stathopoulos V.
7
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, pr. Lavrentieva, 5, Novosibirsk 630090, Russia
|
| 2 |
Novosibirsk State University, Novosibirsk 630090, Russia
|
| 3 |
Tomsk State University, Tomsk 634050, Russia
|
| 4 |
Institute of Solid State Chemistry and Mechanochemistry, Novosibirsk, Russia
|
| 5 |
School of Chemical Engineering, National Technical University of Athens, Athens 15780, Greece
|
| 6 |
Energy Research Center Niedersachsen, Goslar 38640, Germany
|
| 7 |
School of Technological Applications, Technological Educational Institute of Sterea Ellada, Psahna, 34400 Chalkida, Greece
|
|
Funding (2)
|
1
|
The Ministry of Education and Science of the Russian Federation
|
|
|
2
|
Ministry of Education and Religious Affairs
European Commission
|
Архимед III - Фаза II (APACELL)
|
For powders of oxide-ion conductors based on Al/Fe-doped lanthanum silicates as well as Sc+Ce-doped zirconia, the temperature–programmed exchange with C18O2 in the SSITKA mode was applied for estimation of the oxygen self-diffusion coefficients Do. Comparison with results obtained for dense ceramics of these electrolytes using SIMS isotope profiling and conductivity measurements demonstrated a reasonable agreement for powders sintered at high temperatures, thus providing required verification of C18O2 SSITKA approach. For powders calcined at moderate temperatures much lower values of D O were obtained thus suggesting a strong negative effect of inhomogeneity of dopants spatial distribution on the oxygen mobility.