Journal Article

FZJ-2020-00712

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Asymmetric LSCF Membranes Utilizing Commercial Powders

Fedeli, P. (Corresponding author) ; Drago, F. ; Schulze-Küppers, F.FZJ* ; Baumann, S.FZJ*

2020
MDPI Basel

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Please use a persistent id in citations: http://hdl.handle.net/2128/24260  doi:10.3390/ma13030614

Abstract: Powders of constant morphology and quality are indispensable for reproducible ceramic manufacturing. In this study, commercially available powders were characterized regarding their microstructural properties and screened for a reproducible membrane manufacturing process, which was done by sequential tape casting. Basing on this, the slurry composition and ratio of ingredients were systematically varied in order to obtain flat, crack-free green tapes suitable for upscaling of the manufacturing process. Debinding and sintering parameters were adjusted to obtain defect-free membranes with diminished bending. The crucial parameters are the heating ramp, sintering temperature, and dwell time. The microstructure of the asymmetric membranes was investigated, leading to a support porosity of approximately 35% and a membrane layer thickness of around 20 µm. Microstructure and oxygen flux are comparable to asymmetric La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) membranes manufactured from custom-made powder, showing an oxygen flux of > 1 mLcm−2min at 900 °C in air/Ar gradient.

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Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEK-1)

Research Program(s):

1. 113 - Methods and Concepts for Material Development (POF3-113) (POF3-113)
2. GREEN-CC - Graded Membranes for Energy Efficient New Generation Carbon Capture Process (608524) (608524)

Appears in the scientific report 2020

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Database coverage:
; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; DOAJ Seal ; Ebsco Academic Search ; IF < 5 ; JCR ; PubMed Central ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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