Oxygen permeation through oxygen ion oxide-noble metal dual phase composites

C.S. Chen; H. Kruidhof; H.J.M. Bouwmeester; H. Verweij; A.J. Burggraaf

doi:10.1016/0167-2738(96)00206-8

Oxygen permeation through oxygen ion oxide-noble metal dual phase composites

C.S. Chen^*, H. Kruidhof, H.J.M. Bouwmeester, H. Verweij, A.J. Burggraaf

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Oxygen permeation behaviour of three composites, yttria-stabilized zirconia-palladium, erbia-stabilized bismuth oxidenoble metal (silver, gold) was studied. Oxygen permeation measurements were performed under controlled oxygen pressure gradients at elevated temperatures. Air was supplied at one side of a dense sintered disk specimen, while helium was fed at the opposite side to sweep away the permeated oxygen. This research has demonstrated that in addition to the presence of percolative metal phase in the oxide matrix, a large ionic conductivity of the oxide phase and a high catalytic activity of the metal phase towards surface oxygen exchange are required for the dual phase composite to possess high oxygen permeability. The bismuth oxide-silver composite fulfils these requirements, hence showing the best oxygen permeability.

Original language	English
Pages (from-to)	569-572
Number of pages	4
Journal	Solid state ionics
Volume	86-88
Issue number	Part 1
DOIs	https://doi.org/10.1016/0167-2738(96)00206-8
Publication status	Published - 1996

Keywords

Dual phase composites
Oxygen permeation
Ion conductivity

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10.1016/0167-2738(96)00206-8

Chen96oxygen

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title = "Oxygen permeation through oxygen ion oxide-noble metal dual phase composites",

abstract = "Oxygen permeation behaviour of three composites, yttria-stabilized zirconia-palladium, erbia-stabilized bismuth oxidenoble metal (silver, gold) was studied. Oxygen permeation measurements were performed under controlled oxygen pressure gradients at elevated temperatures. Air was supplied at one side of a dense sintered disk specimen, while helium was fed at the opposite side to sweep away the permeated oxygen. This research has demonstrated that in addition to the presence of percolative metal phase in the oxide matrix, a large ionic conductivity of the oxide phase and a high catalytic activity of the metal phase towards surface oxygen exchange are required for the dual phase composite to possess high oxygen permeability. The bismuth oxide-silver composite fulfils these requirements, hence showing the best oxygen permeability.",

keywords = "Dual phase composites, Oxygen permeation, Ion conductivity",

author = "C.S. Chen and H. Kruidhof and H.J.M. Bouwmeester and H. Verweij and A.J. Burggraaf",

year = "1996",

doi = "10.1016/0167-2738(96)00206-8",

language = "English",

volume = "86-88",

pages = "569--572",

journal = "Solid state ionics",

issn = "0167-2738",

publisher = "Elsevier B.V.",

number = "Part 1",

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TY - JOUR

T1 - Oxygen permeation through oxygen ion oxide-noble metal dual phase composites

AU - Chen, C.S.

AU - Kruidhof, H.

AU - Bouwmeester, H.J.M.

AU - Verweij, H.

AU - Burggraaf, A.J.

PY - 1996

Y1 - 1996

N2 - Oxygen permeation behaviour of three composites, yttria-stabilized zirconia-palladium, erbia-stabilized bismuth oxidenoble metal (silver, gold) was studied. Oxygen permeation measurements were performed under controlled oxygen pressure gradients at elevated temperatures. Air was supplied at one side of a dense sintered disk specimen, while helium was fed at the opposite side to sweep away the permeated oxygen. This research has demonstrated that in addition to the presence of percolative metal phase in the oxide matrix, a large ionic conductivity of the oxide phase and a high catalytic activity of the metal phase towards surface oxygen exchange are required for the dual phase composite to possess high oxygen permeability. The bismuth oxide-silver composite fulfils these requirements, hence showing the best oxygen permeability.

AB - Oxygen permeation behaviour of three composites, yttria-stabilized zirconia-palladium, erbia-stabilized bismuth oxidenoble metal (silver, gold) was studied. Oxygen permeation measurements were performed under controlled oxygen pressure gradients at elevated temperatures. Air was supplied at one side of a dense sintered disk specimen, while helium was fed at the opposite side to sweep away the permeated oxygen. This research has demonstrated that in addition to the presence of percolative metal phase in the oxide matrix, a large ionic conductivity of the oxide phase and a high catalytic activity of the metal phase towards surface oxygen exchange are required for the dual phase composite to possess high oxygen permeability. The bismuth oxide-silver composite fulfils these requirements, hence showing the best oxygen permeability.

KW - Dual phase composites

KW - Oxygen permeation

KW - Ion conductivity

U2 - 10.1016/0167-2738(96)00206-8

DO - 10.1016/0167-2738(96)00206-8

M3 - Article

SN - 0167-2738

VL - 86-88

SP - 569

EP - 572

JO - Solid state ionics

JF - Solid state ionics

IS - Part 1

ER -

Oxygen permeation through oxygen ion oxide-noble metal dual phase composites

Abstract

Keywords

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