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)

Kang Chun Yong; Hajime Kusaba; Hisahiro Einaga; Yasutake Teraoka

Mixed conductivity and oxygen permeability of (Ba_xSr _1-x) _0.98Fe_1-yM_yO _3-δ(x = 0.1-0.3, y = 0.1-0.4 and M = Ga, Al)

Kang Chun Yong, Hajime Kusaba, Hisahiro Einaga, Yasutake Teraoka

Functional Materials Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Substitution effects of Ga and Al for Fe in (Ba_xSr _1-x)_0.98FeO_3-δ were studied with respect to crystal structure, conductivity and oxygen permeability. The solubility limits of Ga and Al in (Ba_xSr_1-x)_0.98Fe _1-yM_yO_3-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 - 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/Territory	United States
City	Boston, MA
Period	11/27/06 → 12/1/06

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

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title = "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)",

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.",

author = "Yong, {Kang Chun} and Hajime Kusaba and Hisahiro Einaga and Yasutake Teraoka",

year = "2007",

language = "English",

isbn = "1558999299",

series = "Materials Research Society Symposium Proceedings",

pages = "111--116",

booktitle = "Solid-State Ionics-2006",

note = "2006 MRS Fall Meeting ; Conference date: 27-11-2006 Through 01-12-2006",

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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

Y1 - 2007

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.

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M3 - Conference contribution

AN - SCOPUS:34250803179

SN - 1558999299

SN - 9781558999299

T3 - Materials Research Society Symposium Proceedings

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EP - 116

BT - Solid-State Ionics-2006

T2 - 2006 MRS Fall Meeting

Y2 - 27 November 2006 through 1 December 2006

ER -