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Catalytic Oxide-Ion Conducting Materials for Surface Activation of Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ Membranes

2017; Wiley; Volume: 2; Issue: 10 Linguagem: Inglês

10.1002/slct.201700530

2365-6549

M. Pilar Lobera, María Balaguer, Julio García‐Fayos, José M. Serra,

Magnetic and transport properties of perovskites and related materials

ChemistrySelectVolume 2, Issue 10 p. 2949-2955 Full Paper Catalytic Oxide-Ion Conducting Materials for Surface Activation of Ba0.5Sr0.5Co0.8Fe0.2O3-δ Membranes Dr. M. Pilar Lobera, Dr. M. Pilar Lobera Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, SpainSearch for more papers by this authorDr. María Balaguer, Dr. María Balaguer Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, SpainSearch for more papers by this authorJulio García-Fayos, Julio García-Fayos Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, SpainSearch for more papers by this authorProf. José M. Serra, Corresponding Author Prof. José M. Serra jmserra@itq.upv.es + 34.963879448 Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, SpainSearch for more papers by this author Dr. M. Pilar Lobera, Dr. M. Pilar Lobera Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, SpainSearch for more papers by this authorDr. María Balaguer, Dr. María Balaguer Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, SpainSearch for more papers by this authorJulio García-Fayos, Julio García-Fayos Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, SpainSearch for more papers by this authorProf. José M. Serra, Corresponding Author Prof. José M. Serra jmserra@itq.upv.es + 34.963879448 Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, SpainSearch for more papers by this author First published: 04 April 2017 https://doi.org/10.1002/slct.201700530Citations: 5Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Graphical Abstract The oxygen permeation of BSCF membranes was optimized by catalytic activation of the surface with several strontium ferrite-cobaltite compounds and doped cerias. The material influence and the role of the layer microstructure on boosting the surface reactions that enhance the oxygen permeation were evaluated. Abstract The oxygen permeation process through mixed ionic-electronic conducting (MIEC) membranes thicker than the characteristic thickness of the material at low temperature is controlled by the catalytic oxygen exchange on both surfaces of the membrane. Different strontium ferrite-cobaltite compounds (A0.6Sr0.4Co0.5Fe0.5O3-δ and Ba0.6Sr0.4BO3-δ) and doped cerias (Ce1-xLnxO2-δ) were tested as catalyst for the oxygen exchange reaction in the surface of the membranes. Changes in the activation energy for the permeation of BSCF are observed around 800 °C, and are related to a change in the surface exchange mechanism. All deposited catalytic layers enabled to decrease the activation energy of the membranes in the low temperature range. The microstructure of the layer showed the strongest effect on the exchange rate enhancement. The evaluation of the stability of the catalysts in CO2 shows that both A and B-site doping in the perovskite decrease the tendency to form carbonates. Conflict of interest The authors declare no conflict of interest. Citing Literature Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Filename Description slct201700530-sup-0001-misc_information.pdf686.4 KB Supplementary Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume2, Issue10April 3, 2017Pages 2949-2955 RelatedInformation