文章基本信息

标题：Smart Oxygen Membrane
本地全文：下载
作者：Vladimir Zyryanov
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2021
卷号：340
页码：1-5
DOI：10.1051/matecconf/202134001039
语种：English
出版社：EDP Sciences
摘要：Oxygen selective membrane based on δ-Bi2O3/Ag cermet has maximum potential in separating oxygen from air. However, the achieved oxygen flow is inferior to high-temperature membrane. The paper proposes a new approach to creating a smart oxygen membrane with a selective layer from a nanocomposite with a complex architecture, operating at intermediate temperatures (Top~550-600 °C). At the stage of obtaining nanopowders of membrane components, the potential and features of the mechanochemical ceramic method are taken into account. Mild conditions at the stage of consolidation by hot pressing are provided by the composition of the AgCu-matrix alloy. Achieving a gas-tight selective layer at the stage of reaching Topis ensured by dilatation of some components during the oxidation of copper alloys. The choice of Topfor the oxygen membrane is based on the possibility of regeneration while maintaining the nanoscale microstructure. New solutions allow the creation of stable thin membranes with a reduced cost, including due to the silver contentnear the percolation threshold.