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@ARTICLE{Baumann:15949,
author = {Baumann, S. and Serra, J.M. and Lobera, M.P. and
Escolastico, S. and Schulze-Küppers, F. and Meulenberg,
W.A.},
title = {{U}ltrahigh oxygen permeation flux through supported
{B}a0.5{S}r0.5{C}o0.8{F}e0.2{O}3 membranes},
journal = {Journal of membrane science},
volume = {377},
issn = {0376-7388},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {PreJuSER-15949},
year = {2011},
note = {Financial support from the Spanish Ministry for Science and
Innovation (Project ENE2008-06302 and FPI Grant JAE-Pre
08-0058), EU through FP7 NASA-OTM Project
(NMP3-SL-2009-228701), and the Helmholtz Association of
German Research Centres through the Helmholtz Alliance
MEM-BRAIN (Initiative and Networking Fund) is kindly
acknowledged. Mrs H. Burlet has contributed to this work
with the careful revision of the English language.},
abstract = {Oxygen transport membranes made of
Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) were manufactured by
tape casting and co-firing. The disk-shaped membranes
consisted of a top gastight layer (70 mu m thick) and a
porous substrate (830 mu m thick) with $34\%$ open porosity.
The variation of the permeation operation conditions allowed
(i) the identification of the different limitations steps in
the permeation process, i.e., bulk oxygen ion diffusion,
catalytic surface exchange and gas phase diffusion in the
membrane compartments and porous substrate, and (ii) the
ultimate optimization of the oxygen flux. The variables
considered in the systematic permeation study included the
inlet gas flow rate of the sweep and air feed, the
temperature and the nature of the oxygen feed gas (air or
pure oxygen). Moreover, the influence of the deposition of a
catalytic activation layer (17 mu m thick) made of BSCF on
top of the thin gastight layer was investigated. As a result
of this parametric study, unpreceded oxygen flux values were
achieved, i.e., a maximum flux of 67.7 ml(STP) min(-1)
cm(-2) was obtained at 1000 degrees C using pure oxygen as
the feed and argon as the sweep, while a flux of 12.2
ml(STP) min(-1) cm(-2) at 1000 degrees C was obtained when
air was used as the feed. (C) 2011 Elsevier BM. All rights
reserved.},
keywords = {J (WoSType)},
cin = {IEK-1},
ddc = {570},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {Rationelle Energieumwandlung / NASA-OTM - NAnostructured
Surface Activated ultra-thin Oxygen Transport Membrane
(228701)},
pid = {G:(DE-Juel1)FUEK402 / G:(EU-Grant)228701},
shelfmark = {Engineering, Chemical / Polymer Science},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000292580000020},
doi = {10.1016/j.memsci.2011.04.050},
url = {https://juser.fz-juelich.de/record/15949},
}