Kinetic decompositionof La0.3Sr0.7CoO3-δ perovskite membranes during oxygen permeation

R.H.E. van Doorn; H.J.M. Bouwmeester; A.J. Burggraaf

doi:10.1016/S0167-2738(98)00191-X

Kinetic decompositionof La_0.3Sr_0.7CoO_3-δ perovskite membranes during oxygen permeation

R.H.E. van Doorn, H.J.M. Bouwmeester, A.J. Burggraaf

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Abstract

In this paper, a study is presented towards the stability of oxygen permeable membranes of perovskite La_0.3Sr_0.7CoO_3−δ in an oxygen pressure gradient. It is shown that phase separation occurs at the oxygen-lean side of the membrane, at 900°C, when the membrane is exposed to streams of air and inert gas at opposite sides of the membrane. It is absent when the (homogenous) oxide is annealed in either flowing air or nitrogen for several days, indicating that the phase separation is induced by the dynamic forces acting during oxygen permeation.

Original language	English
Pages (from-to)	263-272
Number of pages	10
Journal	Solid state ionics
Volume	111
Issue number	3-4
DOIs	https://doi.org/10.1016/S0167-2738(98)00191-X
Publication status	Published - 1998

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title = "Kinetic decompositionof La0.3Sr0.7CoO3-δ perovskite membranes during oxygen permeation",

abstract = "In this paper, a study is presented towards the stability of oxygen permeable membranes of perovskite La0.3Sr0.7CoO3−δ in an oxygen pressure gradient. It is shown that phase separation occurs at the oxygen-lean side of the membrane, at 900°C, when the membrane is exposed to streams of air and inert gas at opposite sides of the membrane. It is absent when the (homogenous) oxide is annealed in either flowing air or nitrogen for several days, indicating that the phase separation is induced by the dynamic forces acting during oxygen permeation.",

author = "{van Doorn}, R.H.E. and H.J.M. Bouwmeester and A.J. Burggraaf",

year = "1998",

doi = "10.1016/S0167-2738(98)00191-X",

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volume = "111",

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journal = "Solid state ionics",

issn = "0167-2738",

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T1 - Kinetic decompositionof La0.3Sr0.7CoO3-δ perovskite membranes during oxygen permeation

AU - van Doorn, R.H.E.

AU - Bouwmeester, H.J.M.

AU - Burggraaf, A.J.

PY - 1998

Y1 - 1998

N2 - In this paper, a study is presented towards the stability of oxygen permeable membranes of perovskite La0.3Sr0.7CoO3−δ in an oxygen pressure gradient. It is shown that phase separation occurs at the oxygen-lean side of the membrane, at 900°C, when the membrane is exposed to streams of air and inert gas at opposite sides of the membrane. It is absent when the (homogenous) oxide is annealed in either flowing air or nitrogen for several days, indicating that the phase separation is induced by the dynamic forces acting during oxygen permeation.

AB - In this paper, a study is presented towards the stability of oxygen permeable membranes of perovskite La0.3Sr0.7CoO3−δ in an oxygen pressure gradient. It is shown that phase separation occurs at the oxygen-lean side of the membrane, at 900°C, when the membrane is exposed to streams of air and inert gas at opposite sides of the membrane. It is absent when the (homogenous) oxide is annealed in either flowing air or nitrogen for several days, indicating that the phase separation is induced by the dynamic forces acting during oxygen permeation.

U2 - 10.1016/S0167-2738(98)00191-X

DO - 10.1016/S0167-2738(98)00191-X

M3 - Article

VL - 111

SP - 263

EP - 272

JO - Solid state ionics

JF - Solid state ionics

SN - 0167-2738

IS - 3-4

ER -

Kinetic decompositionof La0.3Sr0.7CoO3-δ perovskite membranes during oxygen permeation

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Kinetic decompositionof La_0.3Sr_0.7CoO_3-δ perovskite membranes during oxygen permeation