Mixed conducting yttrium-barium-cobalt-oxide for high oxygen permeation

H.W. Brinkman; H. Kruidhof; A.J. Burggraaf

doi:10.1016/0167-2738(94)90174-0

Mixed conducting yttrium-barium-cobalt-oxide for high oxygen permeation

H.W. Brinkman, H. Kruidhof, A.J. Burggraaf

Inorganic Materials Science

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Abstract

Yttrium-barium-cobalt-oxide (YBC), especially with low Y content, has been prepared. Oxygen permeation in these materials is very high at moderate temperature. The materials Y0.05BaCo0.95O3-δ and Y0.10Ba0.90CoO3-δ consisted of a BaCoO3-δ like main phase and some minor phases. For the Y_0.05BaCo_0.95O_3-δ material these minor phases were not exceeding 10 vol%. Y_0.05BaCo_0.95O_3-δ had the highest oxygen permeation value of 3.9 × 10^-7 mol/cm²s at 900°C; the surface exchange reaction may be the rate limiting step here. The material Y_0.33Ba_0.67CoO_3-δ consisted mainly of two unknown cubic phases.

Original language	English
Pages (from-to)	173-176
Number of pages	4
Journal	Solid state ionics
Volume	68
Issue number	3-4
DOIs	https://doi.org/10.1016/0167-2738(94)90174-0
Publication status	Published - 1994

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title = "Mixed conducting yttrium-barium-cobalt-oxide for high oxygen permeation",

abstract = "Yttrium-barium-cobalt-oxide (YBC), especially with low Y content, has been prepared. Oxygen permeation in these materials is very high at moderate temperature. The materials Y0.05BaCo0.95O3-δ and Y0.10Ba0.90CoO3-δ consisted of a BaCoO3-δ like main phase and some minor phases. For the Y0.05BaCo0.95O3-δ material these minor phases were not exceeding 10 vol%. Y0.05BaCo0.95O3-δ had the highest oxygen permeation value of 3.9 × 10-7 mol/cm2s at 900°C; the surface exchange reaction may be the rate limiting step here. The material Y0.33Ba0.67CoO3-δ consisted mainly of two unknown cubic phases.",

author = "H.W. Brinkman and H. Kruidhof and A.J. Burggraaf",

year = "1994",

doi = "10.1016/0167-2738(94)90174-0",

language = "English",

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T1 - Mixed conducting yttrium-barium-cobalt-oxide for high oxygen permeation

AU - Brinkman, H.W.

AU - Kruidhof, H.

AU - Burggraaf, A.J.

PY - 1994

Y1 - 1994

N2 - Yttrium-barium-cobalt-oxide (YBC), especially with low Y content, has been prepared. Oxygen permeation in these materials is very high at moderate temperature. The materials Y0.05BaCo0.95O3-δ and Y0.10Ba0.90CoO3-δ consisted of a BaCoO3-δ like main phase and some minor phases. For the Y0.05BaCo0.95O3-δ material these minor phases were not exceeding 10 vol%. Y0.05BaCo0.95O3-δ had the highest oxygen permeation value of 3.9 × 10-7 mol/cm2s at 900°C; the surface exchange reaction may be the rate limiting step here. The material Y0.33Ba0.67CoO3-δ consisted mainly of two unknown cubic phases.

AB - Yttrium-barium-cobalt-oxide (YBC), especially with low Y content, has been prepared. Oxygen permeation in these materials is very high at moderate temperature. The materials Y0.05BaCo0.95O3-δ and Y0.10Ba0.90CoO3-δ consisted of a BaCoO3-δ like main phase and some minor phases. For the Y0.05BaCo0.95O3-δ material these minor phases were not exceeding 10 vol%. Y0.05BaCo0.95O3-δ had the highest oxygen permeation value of 3.9 × 10-7 mol/cm2s at 900°C; the surface exchange reaction may be the rate limiting step here. The material Y0.33Ba0.67CoO3-δ consisted mainly of two unknown cubic phases.

U2 - 10.1016/0167-2738(94)90174-0

DO - 10.1016/0167-2738(94)90174-0

M3 - Article

SN - 0167-2738

VL - 68

SP - 173

EP - 176

JO - Solid state ionics

JF - Solid state ionics

IS - 3-4

ER -

Mixed conducting yttrium-barium-cobalt-oxide for high oxygen permeation

Abstract

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