Oxygen permeation flux through 10Sc1YSZ-MnCo2O4 asymmetric membranes prepared by two-step sintering

Stéven Pirou; Jonas Gurauskis; Vanesa Gil; Martin Søgaard; Peter Vang Hendriksen; Andreas Kaiser; Simona Ovtar; Wolff-Ragnar Kiebach

doi:10.1016/j.fuproc.2016.06.019

Oxygen permeation flux through 10Sc1YSZ-MnCo₂O₄ asymmetric membranes prepared by two-step sintering

Stéven Pirou, Jonas Gurauskis, Vanesa Gil, Martin Søgaard, Peter Vang Hendriksen, Andreas Kaiser, Simona Ovtar, Wolff-Ragnar Kiebach

Department of Energy Conversion and Storage

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

Asymmetric membranes based on a dual phase composite consisting of (Y₂O₃)_0.01(Sc₂O₃)_0.10(ZrO₂)_0.89 (10Sc1YSZ) as ionic conductor and MnCo₂O₄ as electronic conductor were prepared and characterized with respect to sinterability, microstructure and oxygen transport properties. The composite membranes were prepared by tape casting, lamination and fired in a two-step sintering process. Microstructural analysis showed that a gastight thin membrane layer with the desired ratio of ionic/electronic conducting phases could be fabricated. Oxygen permeation fluxes across the 10SclYSZ/MnCo₂O₄(70/30 vol%) composite membrane were measured from 750 to 940 degrees C using air or pure oxygen as feed gases and N₂or CO₂ as sweep gases. Fluxes up to 2.3 ml_N min^-1 cm^-2 were obtained for the 7 μm thick membrane. A degradation test over 1730 h showed an initial degradation of 21% during the first 1100 h after which stable performance was achieved. The observed degradation is attributed to coarsening of the infiltrated catalyst. (C) 2016 Elsevier B.V. All rights reserved.

Original language	English
Journal	Fuel Processing Technology
Volume	152
Pages (from-to)	192-199
Number of pages	8
ISSN	0378-3820
DOIs	https://doi.org/10.1016/j.fuproc.2016.06.019
Publication status	Published - 2016

Keywords

Two-step sintering
Oxygen membranes
Composite membranes
Asymmetric membranes
Oxygen flux
CO2 stability

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10.1016/j.fuproc.2016.06.019

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@article{2681be2994aa4da981f74bc039159a1d,

title = "Oxygen permeation flux through 10Sc1YSZ-MnCo2O4 asymmetric membranes prepared by two-step sintering",

abstract = "Asymmetric membranes based on a dual phase composite consisting of (Y2O3)0.01(Sc2O3)0.10(ZrO2)0.89 (10Sc1YSZ) as ionic conductor and MnCo2O4 as electronic conductor were prepared and characterized with respect to sinterability, microstructure and oxygen transport properties. The composite membranes were prepared by tape casting, lamination and fired in a two-step sintering process. Microstructural analysis showed that a gastight thin membrane layer with the desired ratio of ionic/electronic conducting phases could be fabricated. Oxygen permeation fluxes across the 10SclYSZ/MnCo2O4 (70/30 vol\%) composite membrane were measured from 750 to 940 degrees C using air or pure oxygen as feed gases and N2 or CO2 as sweep gases. Fluxes up to 2.3 mlN min-1 cm-2 were obtained for the 7 μm thick membrane. A degradation test over 1730 h showed an initial degradation of 21\% during the first 1100 h after which stable performance was achieved. The observed degradation is attributed to coarsening of the infiltrated catalyst. (C) 2016 Elsevier B.V. All rights reserved.",

keywords = "Two-step sintering, Oxygen membranes, Composite membranes, Asymmetric membranes, Oxygen flux, CO2 stability",

author = "St{\'e}ven Pirou and Jonas Gurauskis and Vanesa Gil and Martin S{\o}gaard and Hendriksen, \{Peter Vang\} and Andreas Kaiser and Simona Ovtar and Wolff-Ragnar Kiebach",

year = "2016",

doi = "10.1016/j.fuproc.2016.06.019",

language = "English",

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pages = "192--199",

journal = "Fuel Processing Technology",

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T1 - Oxygen permeation flux through 10Sc1YSZ-MnCo2O4 asymmetric membranes prepared by two-step sintering

AU - Pirou, Stéven

AU - Gurauskis, Jonas

AU - Gil, Vanesa

AU - Søgaard, Martin

AU - Hendriksen, Peter Vang

AU - Kaiser, Andreas

AU - Ovtar, Simona

AU - Kiebach, Wolff-Ragnar

PY - 2016

Y1 - 2016

N2 - Asymmetric membranes based on a dual phase composite consisting of (Y2O3)0.01(Sc2O3)0.10(ZrO2)0.89 (10Sc1YSZ) as ionic conductor and MnCo2O4 as electronic conductor were prepared and characterized with respect to sinterability, microstructure and oxygen transport properties. The composite membranes were prepared by tape casting, lamination and fired in a two-step sintering process. Microstructural analysis showed that a gastight thin membrane layer with the desired ratio of ionic/electronic conducting phases could be fabricated. Oxygen permeation fluxes across the 10SclYSZ/MnCo2O4 (70/30 vol%) composite membrane were measured from 750 to 940 degrees C using air or pure oxygen as feed gases and N2 or CO2 as sweep gases. Fluxes up to 2.3 mlN min-1 cm-2 were obtained for the 7 μm thick membrane. A degradation test over 1730 h showed an initial degradation of 21% during the first 1100 h after which stable performance was achieved. The observed degradation is attributed to coarsening of the infiltrated catalyst. (C) 2016 Elsevier B.V. All rights reserved.

AB - Asymmetric membranes based on a dual phase composite consisting of (Y2O3)0.01(Sc2O3)0.10(ZrO2)0.89 (10Sc1YSZ) as ionic conductor and MnCo2O4 as electronic conductor were prepared and characterized with respect to sinterability, microstructure and oxygen transport properties. The composite membranes were prepared by tape casting, lamination and fired in a two-step sintering process. Microstructural analysis showed that a gastight thin membrane layer with the desired ratio of ionic/electronic conducting phases could be fabricated. Oxygen permeation fluxes across the 10SclYSZ/MnCo2O4 (70/30 vol%) composite membrane were measured from 750 to 940 degrees C using air or pure oxygen as feed gases and N2 or CO2 as sweep gases. Fluxes up to 2.3 mlN min-1 cm-2 were obtained for the 7 μm thick membrane. A degradation test over 1730 h showed an initial degradation of 21% during the first 1100 h after which stable performance was achieved. The observed degradation is attributed to coarsening of the infiltrated catalyst. (C) 2016 Elsevier B.V. All rights reserved.

KW - Two-step sintering

KW - Oxygen membranes

KW - Composite membranes

KW - Asymmetric membranes

KW - Oxygen flux

KW - CO2 stability

U2 - 10.1016/j.fuproc.2016.06.019

DO - 10.1016/j.fuproc.2016.06.019

M3 - Journal article

SN - 0378-3820

VL - 152

SP - 192

EP - 199

JO - Fuel Processing Technology

JF - Fuel Processing Technology

ER -