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@PHDTHESIS{Jeong:862940,
author = {Jeong, Hyeondeok},
title = {{C}oupling a {S}olid {O}xide {F}uel {C}ell with a {B}iomass
{G}asifier: {D}egradation {M}echanisms and {A}lternative
{A}node {M}aterials},
volume = {460},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
reportid = {FZJ-2019-03101},
isbn = {978-3-95806-398-3},
series = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
Umwelt / Energy $\&$ Environment},
pages = {II, 112},
year = {2019},
note = {Dissertation, RWTH Aachen University, 2019},
abstract = {Anode-supported solid oxide fuel cells (SOFCs) with a
state-of-the-art Ni/YSZ anode have been tested insimulated
bio-syngas with controlled addition of tars and sulfur as
model molecules to study the influenceof impurities on the
degradation of SOFCs. The phenol tar causes macro- and
micro-scale structuralchanges in the support including
erosion, Ni coarsening, and carbon fiber formation. However,
the effect of phenol on the cell performance was not
pronounced below a content of 8 g/Nm$^{3}$ in the few
hundreds of hour test period. On the other hand, the cell
responded immediately after 0.5 g/Nm$^{3}$ of naphthalene
were added in the fuel. There was no microstructure change
and the carbon deposition was found only on thesurface of
the support. A stack test with real bio-syngas derived from
wood pellets showed more practical problems. The stack
showed considerable performance degradation and the test was
stopped after 5 hours of operation due to an increase of the
pressure drop. There were heavy carbon depositions at the
support surface and the Ni mesh current collector. The
microstructure change of support was also observed near and
under the carbon deposition area, and the Ni metal dusting
behavior was observed from the Ni particles in support and
Ni mesh current collector. ...},
cin = {IEK-1},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {899 - ohne Topic (POF3-899)},
pid = {G:(DE-HGF)POF3-899},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
url = {https://juser.fz-juelich.de/record/862940},
}