基于 Ba0.5Sr0.5Co0.8 - xFe0.2MoxO3 - δ 氧化物的微管膜的稳定性

IF 1.1 4区工程技术 Q4 ELECTROCHEMISTRY

Russian Journal of Electrochemistry Pub Date : 2024-04-27 DOI:10.1134/S1023193524010099

E. V. Shubnikova, O. A. Bragina, A. P. Nemudry

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引用次数: 0

摘要

摘要研究了通过相反转技术制备的基于 Ba0.5Sr0.5Co0.8 - xFe0.2MoxO3 - δ 氧化物（BSCFMx）的微管膜（MT）的稳定性。研究表明，具有 BSCFMx 成分的 MT 膜在空气/氦梯度中表现出长期稳定性和耐热循环性。成分为 Ba0.5Sr0.5Co0.75Fe0.2Mo0.05O3 - δ 的 MT 膜获得了最大氧通量（{{J}_{{{{{text{O}}}_{2}}}}}\）= 7.6 mL cm-2 min-1，T = 850°С，pO2.1 = 0.21 atm）。我们得到了 BSCFM5 氧化物的详细平衡相图。证明不存在不期望的相变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Stability of Microtubular Membranes Based on Ba0.5Sr0.5Co0.8 – xFe0.2MoxO3 – δ Oxides

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Stability of Microtubular Membranes Based on Ba0.5Sr0.5Co0.8 – xFe0.2MoxO3 – δ Oxides

The stability of microtubular (MT) membranes based on Ba_0.5Sr_0.5Co_{0.8 –} _xFe_0.2Mo_xO_{3 – 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 Ba_0.5Sr_0.5Co_0.75Fe_0.2Mo_0.05O_{3 – δ} (\({{J}_{{{{{\text{O}}}_{2}}}}}\) = 7.6 mL cm^–2 min^–1 at T = 850°С and pO_2.1 = 0.21 atm). A detailed equilibrium phase diagram for the BSCFM5 oxide is obtained. The absence of undesired phase transitions is demonstrated.

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来源期刊

Russian Journal of Electrochemistry 工程技术-电化学

CiteScore

1.90

自引率

8.30%

发文量

102

审稿时长

6 months

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.