{"title":"Stability of Microtubular Membranes Based on Ba0.5Sr0.5Co0.8 – xFe0.2MoxO3 – δ Oxides","authors":"E. V. Shubnikova, O. A. Bragina, A. P. Nemudry","doi":"10.1134/S1023193524010099","DOIUrl":null,"url":null,"abstract":"<p>The stability of microtubular (MT) membranes based on Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.8 –</sub> <sub><i>x</i></sub>Fe<sub>0.2</sub>Mo<sub><i>x</i></sub>O<sub>3 – δ</sub> oxides (BSCFM<i>x</i>) prepared by the phase inversion technique is studied. It is shown that the MT membranes with the BSCFM<i>x</i> composition exhibit long-term stability and resistance to thermal cycling in the air/helium gradient. The maximum oxygen fluxes were obtained for MT membranes with the composition Ba<sub>0.5</sub>Sr<sub>0.5</sub>Co<sub>0.75</sub>Fe<sub>0.2</sub>Mo<sub>0.05</sub>O<sub>3 – δ</sub> (<span>\\({{J}_{{{{{\\text{O}}}_{2}}}}}\\)</span> = 7.6 mL cm<sup>–2</sup> min<sup>–1</sup> at <i>T</i> = 850°С and <i>p</i>O<sub>2.1</sub> = 0.21 atm). A detailed equilibrium phase diagram for the BSCFM5 oxide is obtained. The absence of undesired phase transitions is demonstrated.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":null,"pages":null},"PeriodicalIF":1.1000,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Electrochemistry","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S1023193524010099","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
Abstract
The stability of microtubular (MT) membranes based on Ba0.5Sr0.5Co0.8 –xFe0.2MoxO3 – δ oxides (BSCFMx) prepared by the phase inversion technique is studied. It is shown that the MT membranes with the BSCFMx composition exhibit long-term stability and resistance to thermal cycling in the air/helium gradient. The maximum oxygen fluxes were obtained for MT membranes with the composition Ba0.5Sr0.5Co0.75Fe0.2Mo0.05O3 – δ (\({{J}_{{{{{\text{O}}}_{2}}}}}\) = 7.6 mL cm–2 min–1 at T = 850°С and pO2.1 = 0.21 atm). A detailed equilibrium phase diagram for the BSCFM5 oxide is obtained. The absence of undesired phase transitions is demonstrated.
期刊介绍：
Russian Journal of Electrochemistry is a journal that covers all aspects of research in modern electrochemistry. The journal welcomes submissions in English or Russian regardless of country and nationality of authors.
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