Oxygen Permeability of Ba0.5Sr0.5Co0.8Fe0.2O5+δMembrane after Surface Modification

Zi Gang Shen; Dong Li

doi:10.4028/www.scientific.net/AMM.275-277.2394

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Oxygen Permeability of...

Oxygen Permeability of Ba_0.5Sr_0.5Co_0.8Fe_0.2O_5+δMembrane after Surface Modification

Abstract:

The oxygen permeation fluxes of Ba0.5Sr0.5Co0.8Fe0.2O5+(BSCF) membranes coated by RBaCo2O5+ (R= Pr, Nd, Sm, Gd) thin layer were investigated. The oxygen permeation fluxes of BSCF membranes with RBaCo2O5+ (R112)R112 coating layer can be enhanced remarkably. And it is found that the reaction of R112 with BSCF also have effect on the oxygen permeation fluxes. Impurity formed by the reaction of Pr112 with BSCF block oxygen permeation. While NdBaCo2O5+ and SmBaCo2O5+, especially GdBaCo2O5+ have no serious reaction with BSCF, they are desirable materials for coating layer of oxygen permeation membranes.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

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2394-2397

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https://doi.org/10.4028/www.scientific.net/AMM.275-277.2394

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Online since:

January 2013

Authors:

Zi Gang Shen, Dong Li

Keywords:

Membrane, Oxygen Permeation Flux, Surface Modification

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