Synthesis and oxygen permeation properties of ceramic-metal dual-phase membranes

Jinsoo Kim; Y. S. Lin

doi:10.1016/S0376-7388(99)00273-2

Synthesis and oxygen permeation properties of ceramic-metal dual-phase membranes

Jinsoo Kim, Y. S. Lin

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

76 Scopus citations

Abstract

Percolative and non-percolative fluorite type Bi_1.5Y_0.3Sm_0.2O₃ (BYS) and silver dual-phase membranes were prepared by mixing BYS and Ag powders. Oxygen permeation and electric conduction through these BYS/Ag dual- phase membranes were studied in the temperature range of 650-850°C. The percolative BYS/Ag 40% and non-percolative BYS/Ag 30% membranes exhibit about 50-fold and 10-fold increase, respectively, in oxygen permeation flux compared to BYS membranes. For a 1.3 mm thick BYS/Ag 40% membrane, an oxygen permeation flux of 5.8 x 10^-7 mol/cm² s was measured at 850°C with oxygen partial pressures at the feed and permeate sides being 0.21 and 0.009 atm, respectively. The activation energies for oxygen permeation in the temperature range of 650-850°C are 79.30 and 87.30 kJ/mol for the BYS/Ag 30% and BYS/Ag 40% membranes, respectively. For the non-percolative BYS/Ag membrane, the presence of Ag enhances the surface reaction rate for oxygen permeation. The continuous silver phase in the percolative BYS/Ag membrane increases both the electronic conductivity and surface reaction rate which result in substantial improvement of oxygen permeance. (C) 2000 Elsevier Science B.V.

Original language	English (US)
Pages (from-to)	123-133
Number of pages	11
Journal	Journal of Membrane Science
Volume	167
Issue number	1
DOIs	https://doi.org/10.1016/S0376-7388(99)00273-2
State	Published - Mar 14 2000
Externally published	Yes

Keywords

Bismuth oxide
Dual-phase membrane
Oxygen permeation
Silver

ASJC Scopus subject areas

Biochemistry
Materials Science(all)
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/S0376-7388(99)00273-2

Cite this

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title = "Synthesis and oxygen permeation properties of ceramic-metal dual-phase membranes",

abstract = "Percolative and non-percolative fluorite type Bi1.5Y0.3Sm0.2O3 (BYS) and silver dual-phase membranes were prepared by mixing BYS and Ag powders. Oxygen permeation and electric conduction through these BYS/Ag dual- phase membranes were studied in the temperature range of 650-850°C. The percolative BYS/Ag 40% and non-percolative BYS/Ag 30% membranes exhibit about 50-fold and 10-fold increase, respectively, in oxygen permeation flux compared to BYS membranes. For a 1.3 mm thick BYS/Ag 40% membrane, an oxygen permeation flux of 5.8 x 10-7 mol/cm2 s was measured at 850°C with oxygen partial pressures at the feed and permeate sides being 0.21 and 0.009 atm, respectively. The activation energies for oxygen permeation in the temperature range of 650-850°C are 79.30 and 87.30 kJ/mol for the BYS/Ag 30% and BYS/Ag 40% membranes, respectively. For the non-percolative BYS/Ag membrane, the presence of Ag enhances the surface reaction rate for oxygen permeation. The continuous silver phase in the percolative BYS/Ag membrane increases both the electronic conductivity and surface reaction rate which result in substantial improvement of oxygen permeance. (C) 2000 Elsevier Science B.V.",

keywords = "Bismuth oxide, Dual-phase membrane, Oxygen permeation, Silver",

author = "Jinsoo Kim and Lin, {Y. S.}",

note = "Funding Information: The authors are grateful to the financial support on this project from the National Science Foundation (Career Award: CTS-9502437). One of the authors (J. Kim) would like to acknowledge the financial support from North American Membrane Society in the form of a fellowship. Dr. H. Rho in the Materials Science Department at the University of Cincinnati is gratefully acknowledged for assistance in SEM analysis.",

year = "2000",

month = mar,

day = "14",

doi = "10.1016/S0376-7388(99)00273-2",

language = "English (US)",

volume = "167",

pages = "123--133",

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TY - JOUR

T1 - Synthesis and oxygen permeation properties of ceramic-metal dual-phase membranes

AU - Kim, Jinsoo

AU - Lin, Y. S.

N1 - Funding Information: The authors are grateful to the financial support on this project from the National Science Foundation (Career Award: CTS-9502437). One of the authors (J. Kim) would like to acknowledge the financial support from North American Membrane Society in the form of a fellowship. Dr. H. Rho in the Materials Science Department at the University of Cincinnati is gratefully acknowledged for assistance in SEM analysis.

PY - 2000/3/14

Y1 - 2000/3/14

N2 - Percolative and non-percolative fluorite type Bi1.5Y0.3Sm0.2O3 (BYS) and silver dual-phase membranes were prepared by mixing BYS and Ag powders. Oxygen permeation and electric conduction through these BYS/Ag dual- phase membranes were studied in the temperature range of 650-850°C. The percolative BYS/Ag 40% and non-percolative BYS/Ag 30% membranes exhibit about 50-fold and 10-fold increase, respectively, in oxygen permeation flux compared to BYS membranes. For a 1.3 mm thick BYS/Ag 40% membrane, an oxygen permeation flux of 5.8 x 10-7 mol/cm2 s was measured at 850°C with oxygen partial pressures at the feed and permeate sides being 0.21 and 0.009 atm, respectively. The activation energies for oxygen permeation in the temperature range of 650-850°C are 79.30 and 87.30 kJ/mol for the BYS/Ag 30% and BYS/Ag 40% membranes, respectively. For the non-percolative BYS/Ag membrane, the presence of Ag enhances the surface reaction rate for oxygen permeation. The continuous silver phase in the percolative BYS/Ag membrane increases both the electronic conductivity and surface reaction rate which result in substantial improvement of oxygen permeance. (C) 2000 Elsevier Science B.V.

AB - Percolative and non-percolative fluorite type Bi1.5Y0.3Sm0.2O3 (BYS) and silver dual-phase membranes were prepared by mixing BYS and Ag powders. Oxygen permeation and electric conduction through these BYS/Ag dual- phase membranes were studied in the temperature range of 650-850°C. The percolative BYS/Ag 40% and non-percolative BYS/Ag 30% membranes exhibit about 50-fold and 10-fold increase, respectively, in oxygen permeation flux compared to BYS membranes. For a 1.3 mm thick BYS/Ag 40% membrane, an oxygen permeation flux of 5.8 x 10-7 mol/cm2 s was measured at 850°C with oxygen partial pressures at the feed and permeate sides being 0.21 and 0.009 atm, respectively. The activation energies for oxygen permeation in the temperature range of 650-850°C are 79.30 and 87.30 kJ/mol for the BYS/Ag 30% and BYS/Ag 40% membranes, respectively. For the non-percolative BYS/Ag membrane, the presence of Ag enhances the surface reaction rate for oxygen permeation. The continuous silver phase in the percolative BYS/Ag membrane increases both the electronic conductivity and surface reaction rate which result in substantial improvement of oxygen permeance. (C) 2000 Elsevier Science B.V.

KW - Bismuth oxide

KW - Dual-phase membrane

KW - Oxygen permeation

KW - Silver

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SN - 0376-7388

VL - 167

SP - 123

EP - 133

JO - Journal of Membrane Science

JF - Journal of Membrane Science

IS - 1

ER -

Synthesis and oxygen permeation properties of ceramic-metal dual-phase membranes

Abstract

Keywords

ASJC Scopus subject areas

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