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@PHDTHESIS{Schwiers:1028395,
author = {Schwiers, Alexander},
title = {{I}nvestigation and implementation of improved and
degradation-tolerant fuel electrodes for solid oxide cells},
volume = {634},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
reportid = {FZJ-2024-04576},
isbn = {978-3-95806-762-2},
series = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
Umwelt / Energy $\&$ Environment},
pages = {VI, 163, XIII},
year = {2024},
note = {Dissertation, RWTH Aachen University, 2024},
abstract = {Ni- yttria-stabilized zirconia is commonly used as a fuel
electrode cermet in solid oxide cells due to its compelling
combination of conductivity, stability, and material
compatibility. However, it faces significant degradation
when exposed to hydrocarbon-rich fuels, such as
tar-containing biogas. Carbon adsorption poisons the Ni
component, leading to a decrease in catalytic activity,
while the formation of carbon fibers ultimately results in
nickel dusting. To address the issue of fuel electrode
degradation without the need for fuel pre-treatment, this
study investigates two alternative fuel electrode materials.
The first material is gadolinia-doped ceria
(Gd0.1Ce0.9O2-δ) as a replacement for yttria-stabilized
zirconia. Gadolinia-doped ceria possesses mixed electronic
and ionic conductivity, allowing it to maintain catalytic
activity even when Ni is poisoned. Moreover, it exhibits
oxygen storage capacity, potentially aiding in carbon
removal. ...},
cin = {IEK-1 / IMD-2},
cid = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IMD-2-20101013},
pnm = {1231 - Electrochemistry for Hydrogen (POF4-123)},
pid = {G:(DE-HGF)POF4-1231},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
doi = {10.34734/FZJ-2024-04576},
url = {https://juser.fz-juelich.de/record/1028395},
}