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@ARTICLE{Sadykov:151480,
author = {Sadykov and Eremeev, N and Alikina, G. and Sadovskaya, E.
and Muzykantov, V. and Pelipenko, V. and Brobin, A. and
Krieger, T. and Belyaev, V. and Ivanov, V. and Ishchenko, A.
and Rogov, V. and Ulihin, A. and Uvarov, N. and Okhulupin,
Yu. and Mertens, Josef and Vinke, Izaak C.},
title = {{O}xygen mobility and surface ractivity of {P}r{N}i1 −
x{C}ox{O}3+δ–{C}e0.9{Y}0.1{O}2 − δ cathode
nanocomposites},
journal = {Solid state ionics},
volume = {262},
issn = {1872-7689},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2014-01418},
pages = {707–712},
year = {2014},
abstract = {Cobalt-doped praseodymiumnickelate PrNi1 − xCoxO3 − δ
(PNCx) and Y-doped ceria Ce0.9Y0.1O2 − δ (YDC) oxideswere
synthesized via Pechini route. PNCx+YDC composites were
prepared via ultrasonic dispersion of the mixtureof
perovskite and fluorite nanopowders in isopropanol with
addition of polyvinyl butyral followed by drying,pressing
and sintering at 1300 °C. The oxygenmobility and reactivity
of powdered PNCx and composites obtainedby crushing and
milling of dense pellets were estimated by O2-TPD and oxygen
isotope exchange with 18O2 andC18O2 using both static and
flow (SSITKA) reactors in isothermal and
temperature-programmed (TPIE) modes.For PNCx samples
sintered at 1300 °C comprised of (Ni,Co)O and
Ruddlesden–Popper type phases (Pr2NiO4,Pr4(Ni,Co)3O10),
the oxygenmobility and reactivity tend to decrease with Co
content. For composites, the oxygenmobility ismuch higher
due to Pr transfer into YDC thus disordering perovskite-like
and fluorite-like phases. TPIEC18O2 SSITKA experiments
combined with SIMS analysis of the depth profiles of Pr18O
and Ce18O suggest thatfast oxygen diffusion in composites is
provided by domains of disordered perovskite-like phases as
well as Pr,Y-doped ceria. For best composites, the value of
the oxygen chemical diffusion coefficient estimated by
theweight relaxation technique exceeds that of well known
LSFC–GDC composite.},
cin = {IEK-9},
ddc = {530},
cid = {I:(DE-Juel1)IEK-9-20110218},
pnm = {152 - Renewable Energies (POF2-152) / 123 - Fuel Cells
(POF2-123)},
pid = {G:(DE-HGF)POF2-152 / G:(DE-HGF)POF2-123},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000338810500155},
doi = {10.1016/j.ssi.2014.01.020},
url = {https://juser.fz-juelich.de/record/151480},
}