Abstract
Substitution effects of Ga and Al for Fe in (BaxSr 1-x)0.98FeO3-δ were studied with respect to crystal structure, conductivity and oxygen permeability. The solubility limits of Ga and Al in (BaxSr1-x)0.98Fe 1-yMyO3-δ (M=Ga, Al) were between 20 and 30 mol%. The substitution of Ga and Al caused decreases in electronic and oxide ionic conductivities (mixed conductivities) but tolerance toward enhanced the tolerance reduction. Sintered membranes of the Ga- and Al-substituted oxides showed oxygen permeability under the He/air oxygen partial pressure gradient and were stable under the condition of methane partial oxidation at 900°C.
| Original language | English |
|---|---|
| Title of host publication | Solid-State Ionics-2006 |
| Pages | 111-116 |
| Number of pages | 6 |
| Publication status | Published - Jun 29 2007 |
| Event | 2006 MRS Fall Meeting - Boston, MA, United States Duration: Nov 27 2006 → Dec 1 2006 |
Publication series
| Name | Materials Research Society Symposium Proceedings |
|---|---|
| Volume | 972 |
| ISSN (Print) | 0272-9172 |
Other
| Other | 2006 MRS Fall Meeting |
|---|---|
| Country | United States |
| City | Boston, MA |
| Period | 11/27/06 → 12/1/06 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Mixed conductivity and oxygen permeability of (BaxSr 1-x) 0.98Fe1-yMyO 3-δ(x = 0.1-0.3, y = 0.1-0.4 and M = Ga, Al). / Yong, Kang Chun; Kusaba, Hajime; Einaga, Hisahiro; Teraoka, Yasutake.
Solid-State Ionics-2006. 2007. p. 111-116 (Materials Research Society Symposium Proceedings; Vol. 972).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Mixed conductivity and oxygen permeability of (BaxSr 1-x) 0.98Fe1-yMyO 3-δ(x = 0.1-0.3, y = 0.1-0.4 and M = Ga, Al)
AU - Yong, Kang Chun
AU - Kusaba, Hajime
AU - Einaga, Hisahiro
AU - Teraoka, Yasutake
PY - 2007/6/29
Y1 - 2007/6/29
N2 - Substitution effects of Ga and Al for Fe in (BaxSr 1-x)0.98FeO3-δ were studied with respect to crystal structure, conductivity and oxygen permeability. The solubility limits of Ga and Al in (BaxSr1-x)0.98Fe 1-yMyO3-δ (M=Ga, Al) were between 20 and 30 mol%. The substitution of Ga and Al caused decreases in electronic and oxide ionic conductivities (mixed conductivities) but tolerance toward enhanced the tolerance reduction. Sintered membranes of the Ga- and Al-substituted oxides showed oxygen permeability under the He/air oxygen partial pressure gradient and were stable under the condition of methane partial oxidation at 900°C.
AB - Substitution effects of Ga and Al for Fe in (BaxSr 1-x)0.98FeO3-δ were studied with respect to crystal structure, conductivity and oxygen permeability. The solubility limits of Ga and Al in (BaxSr1-x)0.98Fe 1-yMyO3-δ (M=Ga, Al) were between 20 and 30 mol%. The substitution of Ga and Al caused decreases in electronic and oxide ionic conductivities (mixed conductivities) but tolerance toward enhanced the tolerance reduction. Sintered membranes of the Ga- and Al-substituted oxides showed oxygen permeability under the He/air oxygen partial pressure gradient and were stable under the condition of methane partial oxidation at 900°C.
UR - http://www.scopus.com/inward/record.url?scp=34250803179&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34250803179&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:34250803179
SN - 1558999299
SN - 9781558999299
T3 - Materials Research Society Symposium Proceedings
SP - 111
EP - 116
BT - Solid-State Ionics-2006
ER -