Design and optimization of porous ceramic supports for asymmetric ceria-based oxygen transport membranes

Andreas Kaiser, Søren Preben Vagn Foghmoes, G. Pećanac, J. Malzbender, Christodoulos Chatzichristodoulou, Julie Glasscock, Dhavanesan Kothanda Ramachandran, De Wei Ni, Vincenzo Esposito, Martin Søgaard, Peter Vang Hendriksen

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Abstract

The microstructure, mechanical properties and gas permeability of porous supports of Ce0.9Gd0.1O1.95−δ (CGO) were investigated as a function of sintering temperature and volume fraction of pore former for use in planar asymmetric oxygen transport membranes (OTMs). With increasing the pore former content from 11 vol% to 16 vol%, the gas permeabilities increased by a factor of 5 when support tapes were sintered to comparable densities. The improved permeabilities were due to a more favourable microstructure with larger interconnected pores at a porosity of 45% and a fracture strength of 47±2 MPa (m=7). The achieved gas permeability of 2.25×10−15 m2 for a 0.4 mm thick support will not limit the gas transport for oxygen production but in partial oxidation of methane to syngas at higher oxygen fluxes. For integration of the CGO support layer into a flat, asymmetric CGO membrane, the sintering activity of the CGO membrane was reduced by Fe2O3 addition (replacing Co3O4 as sintering additive).
Original languageEnglish
JournalJournal of Membrane Science
Volume513
Pages (from-to)85-94
ISSN0376-7388
DOIs
Publication statusPublished - 2016

Keywords

  • Oxygen transport membrane
  • Ceramic support
  • Mechanical properties
  • Gas permeability
  • Co-firing

Cite this

Kaiser, Andreas ; Foghmoes, Søren Preben Vagn ; Pećanac, G. ; Malzbender, J. ; Chatzichristodoulou, Christodoulos ; Glasscock, Julie ; Kothanda Ramachandran, Dhavanesan ; Ni, De Wei ; Esposito, Vincenzo ; Søgaard, Martin ; Hendriksen, Peter Vang. / Design and optimization of porous ceramic supports for asymmetric ceria-based oxygen transport membranes. In: Journal of Membrane Science. 2016 ; Vol. 513. pp. 85-94.
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abstract = "The microstructure, mechanical properties and gas permeability of porous supports of Ce0.9Gd0.1O1.95−δ (CGO) were investigated as a function of sintering temperature and volume fraction of pore former for use in planar asymmetric oxygen transport membranes (OTMs). With increasing the pore former content from 11 vol{\%} to 16 vol{\%}, the gas permeabilities increased by a factor of 5 when support tapes were sintered to comparable densities. The improved permeabilities were due to a more favourable microstructure with larger interconnected pores at a porosity of 45{\%} and a fracture strength of 47±2 MPa (m=7). The achieved gas permeability of 2.25×10−15 m2 for a 0.4 mm thick support will not limit the gas transport for oxygen production but in partial oxidation of methane to syngas at higher oxygen fluxes. For integration of the CGO support layer into a flat, asymmetric CGO membrane, the sintering activity of the CGO membrane was reduced by Fe2O3 addition (replacing Co3O4 as sintering additive).",
keywords = "Oxygen transport membrane, Ceramic support, Mechanical properties, Gas permeability, Co-firing",
author = "Andreas Kaiser and Foghmoes, {S{\o}ren Preben Vagn} and G. Pećanac and J. Malzbender and Christodoulos Chatzichristodoulou and Julie Glasscock and {Kothanda Ramachandran}, Dhavanesan and Ni, {De Wei} and Vincenzo Esposito and Martin S{\o}gaard and Hendriksen, {Peter Vang}",
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language = "English",
volume = "513",
pages = "85--94",
journal = "Journal of Membrane Science",
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Design and optimization of porous ceramic supports for asymmetric ceria-based oxygen transport membranes. / Kaiser, Andreas; Foghmoes, Søren Preben Vagn; Pećanac, G.; Malzbender, J.; Chatzichristodoulou, Christodoulos; Glasscock, Julie; Kothanda Ramachandran, Dhavanesan; Ni, De Wei; Esposito, Vincenzo; Søgaard, Martin; Hendriksen, Peter Vang.

In: Journal of Membrane Science, Vol. 513, 2016, p. 85-94.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Design and optimization of porous ceramic supports for asymmetric ceria-based oxygen transport membranes

AU - Kaiser, Andreas

AU - Foghmoes, Søren Preben Vagn

AU - Pećanac, G.

AU - Malzbender, J.

AU - Chatzichristodoulou, Christodoulos

AU - Glasscock, Julie

AU - Kothanda Ramachandran, Dhavanesan

AU - Ni, De Wei

AU - Esposito, Vincenzo

AU - Søgaard, Martin

AU - Hendriksen, Peter Vang

PY - 2016

Y1 - 2016

N2 - The microstructure, mechanical properties and gas permeability of porous supports of Ce0.9Gd0.1O1.95−δ (CGO) were investigated as a function of sintering temperature and volume fraction of pore former for use in planar asymmetric oxygen transport membranes (OTMs). With increasing the pore former content from 11 vol% to 16 vol%, the gas permeabilities increased by a factor of 5 when support tapes were sintered to comparable densities. The improved permeabilities were due to a more favourable microstructure with larger interconnected pores at a porosity of 45% and a fracture strength of 47±2 MPa (m=7). The achieved gas permeability of 2.25×10−15 m2 for a 0.4 mm thick support will not limit the gas transport for oxygen production but in partial oxidation of methane to syngas at higher oxygen fluxes. For integration of the CGO support layer into a flat, asymmetric CGO membrane, the sintering activity of the CGO membrane was reduced by Fe2O3 addition (replacing Co3O4 as sintering additive).

AB - The microstructure, mechanical properties and gas permeability of porous supports of Ce0.9Gd0.1O1.95−δ (CGO) were investigated as a function of sintering temperature and volume fraction of pore former for use in planar asymmetric oxygen transport membranes (OTMs). With increasing the pore former content from 11 vol% to 16 vol%, the gas permeabilities increased by a factor of 5 when support tapes were sintered to comparable densities. The improved permeabilities were due to a more favourable microstructure with larger interconnected pores at a porosity of 45% and a fracture strength of 47±2 MPa (m=7). The achieved gas permeability of 2.25×10−15 m2 for a 0.4 mm thick support will not limit the gas transport for oxygen production but in partial oxidation of methane to syngas at higher oxygen fluxes. For integration of the CGO support layer into a flat, asymmetric CGO membrane, the sintering activity of the CGO membrane was reduced by Fe2O3 addition (replacing Co3O4 as sintering additive).

KW - Oxygen transport membrane

KW - Ceramic support

KW - Mechanical properties

KW - Gas permeability

KW - Co-firing

U2 - 10.1016/j.memsci.2016.04.016

DO - 10.1016/j.memsci.2016.04.016

M3 - Journal article

VL - 513

SP - 85

EP - 94

JO - Journal of Membrane Science

JF - Journal of Membrane Science

SN - 0376-7388

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