Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 37, Issue 2, Pages 671-677Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2016.09.033
Keywords
Hydrogen generation; Ceramic membrane reactor; Proton conductors; Magnesium oxide; Sequential tape-casting
Categories
Funding
- Helmholtz Association under Portfolio MEM-BRAIN
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The performance of ceramic gas separation membranes can be increased by reducing their thickness. To maintain the mechanical stability of the membrane, a supporting structure is needed. In this work magnesium oxide (MgO) is identified as support material for H-2-separation membranes made of La6-xWO12-delta (LaWO). Therefore MgO is tested under application-related conditions in a water-gas-shift (WGS) catalytic membrane reactor for hydrogen production and shows a good stability. The sequential tape casting serves as the manufacturing method for the preparation of the asymmetric membrane structures. To show the compatibility of the two materials, detailed investigations of the sintering behaviour and stability tests are performed and show the well-matching properties of the two materials. Microstructural analyses reveal the inter-diffusion between LaWO and MgO. (C) 2016 Elsevier Ltd. All rights reserved.
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