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Authors: Rashid, Aasir
Lim, Hyunjung
Plaz, Daniel
Escobar Cano, Giamper
Bresser, Marc
Wiegers, Katharina-Sophia
Confalonieri, Giorgia
Baek, Sungho
Chen, Guoxing
Feldhoff, Armin
Schulz, Andreas
Weidenkaff, Anke
Widenmeyer, Marc
Title: Hydrogen-tolerant La0.6Ca0.4Co0.2Fe0.8O3-d oxygen transport membranes from ultrasonic spray synthesis for plasma-assisted CO2 conversion
Issue Date: 2023 Zeitschriftenartikel 14 Membranes 13 (2023), No. 875
ISSN: 2077-0375
Abstract: La0.6Ca0.4Co1-xFexO3-d in its various compositions has proven to be an excellent CO2-resistant oxygen transport membrane that can be used in plasma-assisted CO2 conversion. With the goal of incorporating green hydrogen into the CO2 conversion process, this work takes a step further by investigating the compatibility of La0.6Ca0.4Co1-xFexO3-d membranes with hydrogen fed into the plasma. This will enable plasma-assisted conversion of the carbon monoxide produced in the CO2 reduction process into green fuels, like methanol. This requires the La0.6Ca0.4Co1-xFexO3-d membranes to be tolerant towards reducing conditions of hydrogen. The hydrogen tolerance of La0.6Ca0.4Co1-xFexO3-d (x = 0.8) was studied in detail. A faster and resource-efficient route based on ultrasonic spray synthesis was developed to synthesise the La0.6Ca0.4Co0.2Fe0.8O3-d membranes. The La0.6Ca0.4Co0.2Fe0.8O3-d membrane developed using ultrasonic spray synthesis showed similar performance in terms of its oxygen permeation when compared with the ones synthesised with conventional techniques, such as co-precipitation, sol-gel, etc., despite using 30% less cobalt.
Appears in Collections:03 Fakultät Chemie

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