Flux investigations on composite (La0.8Sr0.2)0.95Cr0.5Fe0.5O3 − δ–Sc0.198Ce0.012Zr0.789O1.90 oxygen transport membranes
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Oxygen permeation measurements were performed on planar membranes of (La0.8Sr0.2)0.95Cr0.5Fe0.5O3 − δ (LSCrF)–Sc0.198Ce0.012Zr0.789O1.90 (10Sc1CeSZ) with various exchange layers and membrane thicknesses. Addition of a fuel side exchange layer capable of nickel exsolution provided approximately twice the performance compared with no exsolved catalyst for a 300 μm thick membrane at 900 °C. Use of a 20 μm thick membrane with a porous support structure produced a further 7 fold improvement in oxygen flux at 900 °C to yield 3.54 ml cm− 2 min− 1.
Dehaney-Steven , Z A , Papargyriou , D & Irvine , J T S 2016 , ' Flux investigations on composite (La 0.8 Sr 0.2 ) 0.95 Cr 0.5 Fe 0.5 O 3 − δ –Sc 0.198 Ce 0.012 Zr 0.789 O 1.90 oxygen transport membranes ' Solid State Ionics , vol 288 , pp. 338-341 . DOI: 10.1016/j.ssi.2016.01.017
Solid State Ionics
© 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The authors would like to thank Praxair for funding and Jonathan Lane for helpful discussions, we also acknowledge support from EPSRC for Platform Grant EP/K015540/1and the Royal Society for Wolfson Merit Award WRMA 2012/R2.