Preparation and characterization of Ce0.8Sm0.2O1.9–La0.8Sr0.2Cr0.5Fe0.5O3-δ dual-phase membranes for oxygen permeation
Source abstract
Abstract
In this study, with La0.8Sr0.2Cr0.5Fe0.5O3-δ (LSCrF) and Ce0.8Sm0.2O1.9 (SDC) taken as the electronic conducting phase and the oxide ion conductor, respectively, dual-phase composite ceramic membranes with or without 3 % (in mole) Y2O3 stable ZrO2 (3YSZ) support were prepared and tested as oxygen separation membranes. Then, the oxygen transmission performance was tested by the electrochemical method based on the limiting current. The results obtained with this method coincide with those acquired by means of gas chromatography. Furthermore, the dependences of oxygen permeation rate on oxygen partial pressure, temperature and ceramic membrane thickness were analyzed. When air was used as the sweeping gas on the porous 3YSZ supported SDC-LSCrF dual-phase membrane, the oxygen permeation rate can reach 0.73, 0.82, 0.90 and 0.97 mL cm−2 min−1 at 650, 700, 750 and 800 °C, respectively.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Electronic and Structural Properties of Oxides · Fuel Cells and Related Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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