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@ARTICLE{Yan:840145,
author = {Yan, Yulin and Fang, Qingping and Blum, Ludger and Lehnert,
Werner},
title = {{P}erformance and {D}egradation of a {SOEC} {S}tack with
{D}ifferent {C}ell {C}omponents},
journal = {Electrochimica acta},
volume = {258},
issn = {0013-4686},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2017-07704},
pages = {1254 - 1261},
year = {2017},
abstract = {High temperature water electrolysis with solid oxide
electrolysis cells (SOECs) is a promising method for
hydrogen production. In order to study the performance and
degradation behavior of cells with different cell components
in electrolysis mode, a four-cell stack was assembled that
used JÜLICH's F10 design with two types of air electrodes
based on La0.6Sr0.4CoO3−δ (LSC) and
La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF). A PVD-prepared GDC layer
was applied to LSCF cells while a screen-printing GDC layer
was used in the LSC cells. The performance of the stack was
first characterized with IV-curve measurements in both SOFC
and SOEC modes within the temperature range of 700–800
°C. The durability of the stack was investigated by
conducting a long-term stationary electrolysis operation
with a constant current density of −0.5 Acm−2 and steam
conversion rate of $50\%$ at 800 °C. Electrochemical
Impedance Spectroscopy (EIS) was used to study the
electrochemical performance of the stack, as well as the
degradation behavior during long-term electrolysis
operation. The method “Distribution of Relaxation Times”
(DRT) was applied for the further analysis of the EIS data,
and the DRT results have successfully supported the stack
degradation analysis.},
cin = {IEK-3},
ddc = {540},
cid = {I:(DE-Juel1)IEK-3-20101013},
pnm = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
(SOFC-20140602)},
pid = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000418324800138},
doi = {10.1016/j.electacta.2017.11.180},
url = {https://juser.fz-juelich.de/record/840145},
}