% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Menzler:878529,
author = {Menzler, Norbert H. and Sebold, Doris and Sohn, Yoo Jung
and Zischke, Sebastian},
title = {{P}ost-test characterization of a solid oxide fuel cell
after more than 10 years of stack testing},
journal = {Journal of power sources},
volume = {478},
issn = {0378-7753},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2020-02892},
pages = {228770 -},
year = {2020},
abstract = {A short stack composed of two layers with anode-supported
SOFCs was operated galvanostatically for 100,000 h. The
operating temperature was 700 °C, the current density 0.5 A
cm−2 and humidified hydrogen and ambient air were used as
gases. Over time, the degradation slope varied and the
overall voltage degradation finally amounted to $0.5\%$ per
1000 h. After dismantling the stack all relevant components
were post-test analyzed. Here we report on our cell
findings. The Ni/8YSZ support, the 8YSZ electrolyte and the
perovskitic cathode contact layer appear nearly intact after
11 years. Most of the observed changes/interactions can be
attributed to the anode (Ni/8YSZ), the barrier layer (GDC)
and the cathode (LSCF). Close to the barrier layer, the
cathode is fragmented, elementally disintegrated and Cr
poisoning was detected. The GDC also shows some
fragmentation close to the cathode and some interaction with
chromium. Elements from both layers, the cathode and the
barrier, interdiffuse to a certain amount. The fuel
electrode displays some foreign phase formation consisting
of manganese and aluminium. Additionally, and this was found
for the first time in a solid oxide fuel cell stack, Ni
enrichment in the anode was observed.},
cin = {IEK-1},
ddc = {620},
cid = {I:(DE-Juel1)IEK-1-20101013},
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:000589933500001},
doi = {10.1016/j.jpowsour.2020.228770},
url = {https://juser.fz-juelich.de/record/878529},
}