Importance of the surface exchange kinetics as rate limiting step in oxygen permeation through mixed-conducting oxides

H.J.M. Bouwmeester; H. Kruidhof; A.J. Burggraaf

doi:10.1016/0167-2738(94)90145-7

Importance of the surface exchange kinetics as rate limiting step in oxygen permeation through mixed-conducting oxides

H.J.M. Bouwmeester
, H. Kruidhof
, A.J. Burggraaf

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Abstract

Attention is drawn to the possible involvement of the surface exchange kinetics in limiting the rate of oxygen permeation through mixed-conducting oxide ceramics. A theoretical approach is provided with which it is possible to distinguish between surface exchange- and bulk diffusion controlled kinetics of oxygen permeation. New results on the oxygen permeability of perovskites La_0.8Sr_0.2CoO_3−σ and SrCo_0.8Fe_0.2O_3−σ are presented. The importance of the exchange reaction re to diffusion in limiting overall oxygen transport through (La,Sr)(Co,Fe)O_3−σ perovskite-type oxides is emphasized.

Original language	English
Pages (from-to)	185-194
Number of pages	10
Journal	Solid state ionics
Volume	72
Issue number	Part 2
DOIs	https://doi.org/10.1016/0167-2738(94)90145-7
Publication status	Published - 1994

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abstract = "Attention is drawn to the possible involvement of the surface exchange kinetics in limiting the rate of oxygen permeation through mixed-conducting oxide ceramics. A theoretical approach is provided with which it is possible to distinguish between surface exchange- and bulk diffusion controlled kinetics of oxygen permeation. New results on the oxygen permeability of perovskites La0.8Sr0.2CoO3−σ and SrCo0.8Fe0.2O3−σ are presented. The importance of the exchange reaction re to diffusion in limiting overall oxygen transport through (La,Sr)(Co,Fe)O3−σ perovskite-type oxides is emphasized.",

author = "H.J.M. Bouwmeester and H. Kruidhof and A.J. Burggraaf",

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doi = "10.1016/0167-2738(94)90145-7",

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T1 - Importance of the surface exchange kinetics as rate limiting step in oxygen permeation through mixed-conducting oxides

AU - Bouwmeester, H.J.M.

AU - Kruidhof, H.

AU - Burggraaf, A.J.

PY - 1994

Y1 - 1994

N2 - Attention is drawn to the possible involvement of the surface exchange kinetics in limiting the rate of oxygen permeation through mixed-conducting oxide ceramics. A theoretical approach is provided with which it is possible to distinguish between surface exchange- and bulk diffusion controlled kinetics of oxygen permeation. New results on the oxygen permeability of perovskites La0.8Sr0.2CoO3−σ and SrCo0.8Fe0.2O3−σ are presented. The importance of the exchange reaction re to diffusion in limiting overall oxygen transport through (La,Sr)(Co,Fe)O3−σ perovskite-type oxides is emphasized.

AB - Attention is drawn to the possible involvement of the surface exchange kinetics in limiting the rate of oxygen permeation through mixed-conducting oxide ceramics. A theoretical approach is provided with which it is possible to distinguish between surface exchange- and bulk diffusion controlled kinetics of oxygen permeation. New results on the oxygen permeability of perovskites La0.8Sr0.2CoO3−σ and SrCo0.8Fe0.2O3−σ are presented. The importance of the exchange reaction re to diffusion in limiting overall oxygen transport through (La,Sr)(Co,Fe)O3−σ perovskite-type oxides is emphasized.

U2 - 10.1016/0167-2738(94)90145-7

DO - 10.1016/0167-2738(94)90145-7

M3 - Article

SN - 0167-2738

VL - 72

SP - 185

EP - 194

JO - Solid state ionics

JF - Solid state ionics

IS - Part 2

ER -

Importance of the surface exchange kinetics as rate limiting step in oxygen permeation through mixed-conducting oxides

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