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

Jinsoo Kim, Jerry Lin

Research output: Contribution to journalArticle

68 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)123-133
Number of pages11
JournalJournal of Membrane Science
Volume167
Issue number1
DOIs
StatePublished - Mar 14 2000
Externally publishedYes

Fingerprint

Cermets
Ceramics
Permeation
Metals
ceramics
Oxygen
membranes
Membranes
oxygen
synthesis
metals
Surface reactions
Silver
surface reactions
Reaction rates
reaction kinetics
silver
Fluxes
Temperature
Fluorspar

Keywords

  • Bismuth oxide
  • Dual-phase membrane
  • Oxygen permeation
  • Silver

ASJC Scopus subject areas

  • Filtration and Separation
  • Polymers and Plastics

Cite this

Synthesis and oxygen permeation properties of ceramic-metal dual-phase membranes. / Kim, Jinsoo; Lin, Jerry.

In: Journal of Membrane Science, Vol. 167, No. 1, 14.03.2000, p. 123-133.

Research output: Contribution to journalArticle

@article{282b22869f6c47409e3938573b113d39,
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 Jerry Lin",
year = "2000",
month = "3",
day = "14",
doi = "10.1016/S0376-7388(99)00273-2",
language = "English (US)",
volume = "167",
pages = "123--133",
journal = "Jornal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

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

AU - Kim, Jinsoo

AU - Lin, Jerry

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

UR - http://www.scopus.com/inward/record.url?scp=0033951296&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033951296&partnerID=8YFLogxK

U2 - 10.1016/S0376-7388(99)00273-2

DO - 10.1016/S0376-7388(99)00273-2

M3 - Article

AN - SCOPUS:0033951296

VL - 167

SP - 123

EP - 133

JO - Jornal of Membrane Science

JF - Jornal of Membrane Science

SN - 0376-7388

IS - 1

ER -