Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1955-1960 |
| Seitenumfang | 6 |
| Fachzeitschrift | Journal of Chemical & Engineering Data |
| Jahrgang | 63 |
| Ausgabenummer | 6 |
| Frühes Online-Datum | 25 Mai 2018 |
| Publikationsstatus | Veröffentlicht - 14 Juni 2018 |
Abstract
Zirconium dioxide (ZrO2) codoped with 10 mol % scandium(III) oxide Sc2O3 and 1 mol % cerium dioxide CeO2 (10Sc1CeSZ) is a relevant electrolyte material for high temperature fuel or electrolysis cells, due to its high ionic conductivity and its stability in the cubic phase in comparison to other metal oxides. Despite the many experimental studies for 10Sc1CeSZ, there are to our knowledge no computational studies of this material. In this paper, we calculate the diffusivities and ionic conductivity of 10Sc1CeSZ using classical molecular dynamics for different temperatures and the density at zero pressure in the canonical ensemble. Our results for the ionic conductivity are comparable with experimental data for temperatures equal to or above 1200 K. This may hopefully also be the case for the Brownian diffusion coefficient and the tracer diffusion coefficient calculated in this work, for which no literature values are available. The values given in this paper can be used in future studies describing transport phenomena in fuel or electrolysis cells with 10Sc1CeSZ electrolytes.
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in: Journal of Chemical & Engineering Data, Jahrgang 63, Nr. 6, 14.06.2018, S. 1955-1960.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - A Diffusivity Study of (Sc2O3)0.1(CeO2)0.01(ZrO2)0.89 between 1100 and 1500 K at Zero Pressure with Molecular Dynamics
AU - Valadez Huerta, Gerardo
AU - Reus, Lucas
AU - Kabelac, Stephan
PY - 2018/6/14
Y1 - 2018/6/14
N2 - Zirconium dioxide (ZrO2) codoped with 10 mol % scandium(III) oxide Sc2O3 and 1 mol % cerium dioxide CeO2 (10Sc1CeSZ) is a relevant electrolyte material for high temperature fuel or electrolysis cells, due to its high ionic conductivity and its stability in the cubic phase in comparison to other metal oxides. Despite the many experimental studies for 10Sc1CeSZ, there are to our knowledge no computational studies of this material. In this paper, we calculate the diffusivities and ionic conductivity of 10Sc1CeSZ using classical molecular dynamics for different temperatures and the density at zero pressure in the canonical ensemble. Our results for the ionic conductivity are comparable with experimental data for temperatures equal to or above 1200 K. This may hopefully also be the case for the Brownian diffusion coefficient and the tracer diffusion coefficient calculated in this work, for which no literature values are available. The values given in this paper can be used in future studies describing transport phenomena in fuel or electrolysis cells with 10Sc1CeSZ electrolytes.
AB - Zirconium dioxide (ZrO2) codoped with 10 mol % scandium(III) oxide Sc2O3 and 1 mol % cerium dioxide CeO2 (10Sc1CeSZ) is a relevant electrolyte material for high temperature fuel or electrolysis cells, due to its high ionic conductivity and its stability in the cubic phase in comparison to other metal oxides. Despite the many experimental studies for 10Sc1CeSZ, there are to our knowledge no computational studies of this material. In this paper, we calculate the diffusivities and ionic conductivity of 10Sc1CeSZ using classical molecular dynamics for different temperatures and the density at zero pressure in the canonical ensemble. Our results for the ionic conductivity are comparable with experimental data for temperatures equal to or above 1200 K. This may hopefully also be the case for the Brownian diffusion coefficient and the tracer diffusion coefficient calculated in this work, for which no literature values are available. The values given in this paper can be used in future studies describing transport phenomena in fuel or electrolysis cells with 10Sc1CeSZ electrolytes.
UR - http://www.scopus.com/inward/record.url?scp=85048729840&partnerID=8YFLogxK
U2 - 10.1021/acs.jced.7b01094
DO - 10.1021/acs.jced.7b01094
M3 - Article
AN - SCOPUS:85048729840
VL - 63
SP - 1955
EP - 1960
JO - Journal of Chemical & Engineering Data
JF - Journal of Chemical & Engineering Data
SN - 0021-9568
IS - 6
ER -