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@ARTICLE{Vibhu:865890,
author = {Vibhu, V. and Vinke, I. C. and Eichel, Rüdiger-A. and
Bassat, J.-M. and de Haart, L. G. J.},
title = {{L}a2{N}i1-x{C}ox{O}4þδ (x ¼ 0.0, 0.1 and 0.2) based
efficient oxygen electrode materials for solid oxide
electrolysis cells},
journal = {Journal of power sources},
volume = {444},
issn = {0378-7753},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2019-05169},
pages = {227292 -},
year = {2019},
abstract = {The present study is focused on the development of
alternative oxygen electrodes for Solid Oxide Electrolysis
Cells (SOECs). Rare earth nickelates with general formula
Ln2NiO4+δ (Ln = La, Pr or Nd) have shown good
performance as oxygen electrodes with various electrolytes.
Among them, La2NiO4+δ is most stable nickelate by itself
however its electrochemical performance is lower compare to
Pr2NiO4+δ. Therefore, to further enhance the
physico-chemical properties, electrochemical performance of
La2NiO4+δ as SOECs oxygen electrode, herein, we have
performed the substitution of nickel with cobalt. Three
compositions (x = 0.0, 0.1 and 0.2) were mainly
considered and completely characterized using several
techniques. The symmetrical as well as single cells were
then prepared and electrochemically characterized using DC-
and AC-techniques in the temperature range 700–900 °C.
The electrode reaction mechanism was also investigated by
recording the impedance spectra at different pO2. With
cobalt substitution, an improvement in electrochemical
performance as well lower degradation rate is observed
during long term SOEC operation at −1 A⋅cm−2 current
density at 800 °C with $50\%$ H2 and $50\%$ H2O feed gas
mixture.},
cin = {IEK-9},
ddc = {620},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {135 - Fuel Cells (POF3-135)},
pid = {G:(DE-HGF)POF3-135},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000501401900016},
doi = {10.1016/j.jpowsour.2019.227292},
url = {https://juser.fz-juelich.de/record/865890},
}