Electrochemical vapor deposition synthesis and oxygen permeation properties of dense zirconia-yttria-ceria membranes

J. Han; Y. Zeng; G. Xomeritakis; Y. S. Lin

doi:10.1016/s0167-2738(97)00118-5

Electrochemical vapor deposition synthesis and oxygen permeation properties of dense zirconia-yttria-ceria membranes

J. Han, Y. Zeng, G. Xomeritakis, Y. S. Lin

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

37 Scopus citations

Abstract

Thin (< 15 μm) dense ZrO₂-Y₂O₃-CeO₂ membranes with different CeO₂ composition and membrane thickness were deposited on porous α-alumina substrates by the EVD process using corresponding metal chlorides as the precursors. CeO₂ composition in the membrane is the same as CeCl₃ concentration in the gas phase. The film growth rate for the EVD process is about 7 μm/h. The EVD prepared ZrO₂-Y₂O₃-CeO₂ membranes do not show single phase, but consist of two separate phases: a ZrO₂-dominant cubic phase and a CeO₂-dominant cubic phase. Under present conditions (950-1050°C, P_O2(high) =0.21 atm, P_O2(low) =0.01 atm), oxygen permeation through the EVD prepared ZrO₂-Y₂O₃-CeO₂ membranes is limited by the bulk diffusion in the membrane. The oxygen permeability of the ZrO₂-Y₂O₃-CeO₂ membranes is in the range of 1-4 × 10^-11 mol/cm s, about an order of magnitude higher than that of ZrO₂-Y₂O₃ membranes. The oxygen permeation flux through the EVD prepared ZrO₂-Y₂O₃-CeO₂ membrane increases with CeO₂ composition in the film.

Original language	English (US)
Pages (from-to)	63-72
Number of pages	10
Journal	Solid State Ionics
Volume	98
Issue number	1-2
DOIs	https://doi.org/10.1016/s0167-2738(97)00118-5
State	Published - Jun 1 1997
Externally published	Yes

Keywords

Ceramic membranes
Ceria
Electrochemical vapor deposition
Mixed conductor
Oxygen permeation
Yttria
Zirconia

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1016/s0167-2738(97)00118-5

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title = "Electrochemical vapor deposition synthesis and oxygen permeation properties of dense zirconia-yttria-ceria membranes",

abstract = "Thin (< 15 μm) dense ZrO2-Y2O3-CeO2 membranes with different CeO2 composition and membrane thickness were deposited on porous α-alumina substrates by the EVD process using corresponding metal chlorides as the precursors. CeO2 composition in the membrane is the same as CeCl3 concentration in the gas phase. The film growth rate for the EVD process is about 7 μm/h. The EVD prepared ZrO2-Y2O3-CeO2 membranes do not show single phase, but consist of two separate phases: a ZrO2-dominant cubic phase and a CeO2-dominant cubic phase. Under present conditions (950-1050°C, PO2(high) =0.21 atm, PO2(low) =0.01 atm), oxygen permeation through the EVD prepared ZrO2-Y2O3-CeO2 membranes is limited by the bulk diffusion in the membrane. The oxygen permeability of the ZrO2-Y2O3-CeO2 membranes is in the range of 1-4 × 10-11 mol/cm s, about an order of magnitude higher than that of ZrO2-Y2O3 membranes. The oxygen permeation flux through the EVD prepared ZrO2-Y2O3-CeO2 membrane increases with CeO2 composition in the film.",

keywords = "Ceramic membranes, Ceria, Electrochemical vapor deposition, Mixed conductor, Oxygen permeation, Yttria, Zirconia",

author = "J. Han and Y. Zeng and G. Xomeritakis and Lin, {Y. S.}",

note = "Funding Information: The authors are grateful to the financial support on this project from the National Science Foundation (CTS-9208518). ",

year = "1997",

month = jun,

day = "1",

doi = "10.1016/s0167-2738(97)00118-5",

language = "English (US)",

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TY - JOUR

T1 - Electrochemical vapor deposition synthesis and oxygen permeation properties of dense zirconia-yttria-ceria membranes

AU - Han, J.

AU - Zeng, Y.

AU - Xomeritakis, G.

AU - Lin, Y. S.

N1 - Funding Information: The authors are grateful to the financial support on this project from the National Science Foundation (CTS-9208518).

PY - 1997/6/1

Y1 - 1997/6/1

N2 - Thin (< 15 μm) dense ZrO2-Y2O3-CeO2 membranes with different CeO2 composition and membrane thickness were deposited on porous α-alumina substrates by the EVD process using corresponding metal chlorides as the precursors. CeO2 composition in the membrane is the same as CeCl3 concentration in the gas phase. The film growth rate for the EVD process is about 7 μm/h. The EVD prepared ZrO2-Y2O3-CeO2 membranes do not show single phase, but consist of two separate phases: a ZrO2-dominant cubic phase and a CeO2-dominant cubic phase. Under present conditions (950-1050°C, PO2(high) =0.21 atm, PO2(low) =0.01 atm), oxygen permeation through the EVD prepared ZrO2-Y2O3-CeO2 membranes is limited by the bulk diffusion in the membrane. The oxygen permeability of the ZrO2-Y2O3-CeO2 membranes is in the range of 1-4 × 10-11 mol/cm s, about an order of magnitude higher than that of ZrO2-Y2O3 membranes. The oxygen permeation flux through the EVD prepared ZrO2-Y2O3-CeO2 membrane increases with CeO2 composition in the film.

AB - Thin (< 15 μm) dense ZrO2-Y2O3-CeO2 membranes with different CeO2 composition and membrane thickness were deposited on porous α-alumina substrates by the EVD process using corresponding metal chlorides as the precursors. CeO2 composition in the membrane is the same as CeCl3 concentration in the gas phase. The film growth rate for the EVD process is about 7 μm/h. The EVD prepared ZrO2-Y2O3-CeO2 membranes do not show single phase, but consist of two separate phases: a ZrO2-dominant cubic phase and a CeO2-dominant cubic phase. Under present conditions (950-1050°C, PO2(high) =0.21 atm, PO2(low) =0.01 atm), oxygen permeation through the EVD prepared ZrO2-Y2O3-CeO2 membranes is limited by the bulk diffusion in the membrane. The oxygen permeability of the ZrO2-Y2O3-CeO2 membranes is in the range of 1-4 × 10-11 mol/cm s, about an order of magnitude higher than that of ZrO2-Y2O3 membranes. The oxygen permeation flux through the EVD prepared ZrO2-Y2O3-CeO2 membrane increases with CeO2 composition in the film.

KW - Ceramic membranes

KW - Ceria

KW - Electrochemical vapor deposition

KW - Mixed conductor

KW - Oxygen permeation

KW - Yttria

KW - Zirconia

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ER -

Electrochemical vapor deposition synthesis and oxygen permeation properties of dense zirconia-yttria-ceria membranes

Abstract

Keywords

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