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@ARTICLE{Gerstl:824584,
author = {Gerstl, Matthias and Hutterer, Alexander and Fleig, Jürgen
and Bram, Martin and Opitz, Alexander Karl},
title = {{M}odel composite microelectrodes as a pathfinder for fully
oxidic {SOFC} anodes},
journal = {Solid state ionics},
volume = {298},
issn = {0167-2738},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2016-07152},
pages = {1 - 8},
year = {2016},
abstract = {All-oxide model-composite electrodes were established
consisting of a thin, micropatterned, electronically
conducting oxide, which acts as a current collector, and a
thin film of gadolinia-doped ceria, which is an
electrochemically highly active mixed conductor under
reducing atmospheres. The choice of the current collecting
oxides was based on their electronic conductivity assessed
by measurements of thin films using the van der Pauw method.
Lanthanum and niobium doped strontium titanate as well as
alumina doped zinc oxide, were investigated this way in a
humid hydrogen atmosphere. Promising materials were
incorporated as a current collector into model-composite
microelectrodes and tested for their stability and
efficiency in electrochemically activating the
microelectrode. Alumina doped zinc oxide, while being an
excellent electron conductor, showed severe stability
problems at temperatures above 600 °C. However, a
microelectrode with a current collector of niobium doped
strontium titanate (Sr0·9Ti0.8Nb0·2O3) performed
comparable to an electrode with a Pt current collector and,
additionally, showed an improved tolerance to sulphur
poisoning in a humid hydrogen atmosphere with 10 ppm of
hydrogen sulphide.},
cin = {IEK-1},
ddc = {530},
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:000390072800001},
doi = {10.1016/j.ssi.2016.10.013},
url = {https://juser.fz-juelich.de/record/824584},
}