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@ARTICLE{Ivanova:824266,
author = {Ivanova, Mariya and Escolástico, Sonia and Balaguer, Maria
and Palisaitis, Justinas and Sohn, Yoo Jung and Meulenberg,
Wilhelm A. and Guillon, Olivier and Mayer, Joachim and
Serra, Jose M.},
title = {{H}ydrogen separation through tailored dual phase membranes
with nominal composition
{B}a{C}e$_{0.8}${E}u$_{0.2}${O}$_{3-δ}$:{C}e$_{0.8}${Y}$_{0.2}${O}$_{2-δ}$
at intermediate temperatures},
journal = {Scientific reports},
volume = {6},
issn = {2045-2322},
address = {London},
publisher = {Nature Publishing Group},
reportid = {FZJ-2016-06885},
pages = {34773 -},
year = {2016},
abstract = {Hydrogen permeation membranes are a key element in
improving the energy conversion efficiency and decreasing
the greenhouse gas emissions from energy generation. The
scientific community faces the challenge of identifying and
optimizing stable and effective ceramic materials for H2
separation membranes at elevated temperature
(400–800 °C) for industrial separations and intensified
catalytic reactors. As such, composite materials with
nominal composition BaCe0.8Eu0.2O3-δ:Ce0.8Y0.2O2-δ
revealed unprecedented H2 permeation levels of 0.4 to
0.61 mL·min−1·cm−2 at 700 °C measured on
500 μm-thick-specimen. A detailed structural and phase
study revealed single phase perovskite and fluorite starting
materials synthesized via the conventional ceramic route.
Strong tendency of Eu to migrate from the perovskite to the
fluorite phase was observed at sintering temperature,
leading to significant Eu depletion of the proton conducing
BaCe0.8Eu0.2O3-δ phase. Composite microstructure was
examined prior and after a variety of functional tests,
including electrical conductivity, H2-permeation and
stability in CO2 containing atmospheres at elevated
temperatures, revealing stable material without
morphological and structural changes, with segregation-free
interfaces and no further diffusive effects between the
constituting phases. In this context, dual phase material
based on BaCe0.8Eu0.2O3-δ:Ce0.8Y0.2O2-δ represents a very
promising candidate for H2 separating membrane in energy-
and environmentally-related applications.},
cin = {IEK-1 / PGI-5 / JARA-ENERGY},
ddc = {000},
cid = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)PGI-5-20110106 /
$I:(DE-82)080011_20140620$},
pnm = {113 - Methods and Concepts for Material Development
(POF3-113)},
pid = {G:(DE-HGF)POF3-113},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000387010000001},
pubmed = {pmid:27812011},
doi = {10.1038/srep34773},
url = {https://juser.fz-juelich.de/record/824266},
}