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Open AccessFeature PaperEditor’s ChoiceArticle

Microstructure Control of Tubular Micro-Channelled Supports Fabricated by the Phase Inversion Casting Method

1
Inorganic Membranes and Membrane Reactors, Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, De Rondom 70, 5612 AZ Eindhoven, The Netherlands
2
Chemical Process Intensification, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, De Rondom 70, 5612 AZ Eindhoven, The Netherlands
*
Author to whom correspondence should be addressed.
Processes 2019, 7(6), 322; https://doi.org/10.3390/pr7060322
Received: 6 May 2019 / Revised: 19 May 2019 / Accepted: 28 May 2019 / Published: 31 May 2019
(This article belongs to the Special Issue Catalysis in Membrane Reactors)
Thin-film membrane layers coated onto porous supports is widely considered as an efficient way to obtain high-performance oxygen transport membranes with both good permeability and high mechanical strength. However, conventional preparation methods of membrane supports usually result in highly tortuous channels with high mass transfer resistance. Tubular porous MgO and MgO/CGO supports were fabricated with a simple phase inversion casting method. Long finger-like channels were obtained inside the dual-phase supports by adjusting the ceramic loading, polymer concentration and particle surface area, as well as by introducing ethanol inside the casting slurries. Slurries that exhibit lower viscosity in the zero-shear viscosity region resulted in more pronounced channel growth. These supports were used to produce thin supported CGO membranes for possible application in O2 separation. Similar shrinkage speeds for the different layers during the sintering process are crucial for obtaining dense asymmetric membranes. The shrinkage of the support tube at a high temperature was greatly affected by the polymer/ceramic ratio and compatible shrinkage behaviours of the two layers were realized with polymer/ceramic weight ratios between 0.175 and 0.225. View Full-Text
Keywords: ceramic membrane; tubular micro-channelled support; CGO-MgO support; phase inversion casting; channel length; shrinkage behaviour ceramic membrane; tubular micro-channelled support; CGO-MgO support; phase inversion casting; channel length; shrinkage behaviour
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MDPI and ACS Style

Liu, Y.; Rahimalimamaghani, A.; van Sint Annaland, M.; Gallucci, F. Microstructure Control of Tubular Micro-Channelled Supports Fabricated by the Phase Inversion Casting Method. Processes 2019, 7, 322. https://doi.org/10.3390/pr7060322

AMA Style

Liu Y, Rahimalimamaghani A, van Sint Annaland M, Gallucci F. Microstructure Control of Tubular Micro-Channelled Supports Fabricated by the Phase Inversion Casting Method. Processes. 2019; 7(6):322. https://doi.org/10.3390/pr7060322

Chicago/Turabian Style

Liu, Yuliang; Rahimalimamaghani, Arash; van Sint Annaland, Martin; Gallucci, Fausto. 2019. "Microstructure Control of Tubular Micro-Channelled Supports Fabricated by the Phase Inversion Casting Method" Processes 7, no. 6: 322. https://doi.org/10.3390/pr7060322

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