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@ARTICLE{Schober:29436,
author = {Schober, T.},
title = {{W}ater vapor solubility and impedance of the high
temperature proton conductor {S}r{Z}r0.9{Y}0.1{O}2.95},
journal = {Solid state ionics},
volume = {145},
issn = {0167-2738},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-29436},
pages = {319 - 324},
year = {2001},
note = {Record converted from VDB: 12.11.2012},
abstract = {SrZr0.9Y0.1O2.95 was prepared at rather high sintering
temperatures. Thermogravimetry resulted in a maximum proton
solubility of about 0.04 mol/mol compound. The standard
enthalpy and entropy of the solution process were
determined. Impedance results are presented for various gas
atmospheres ranging from oxidizing to very reducing, and
from dry to very moist. Clear evidence for proton conduction
was obtained. The conductivity of the protonated samples was
found to increase linearly with the proton content
determined independently by weight measurements. From the
data, the activation energy and the prefactor of the proton
mobility were extracted and compared with literature values,
In addition to water vapor. atmospheres proton uptake was
observed by impedance spectroscopy (IS) in acetone vapors
where argon was used as inert carrier gas. At temperatures
above 450-500 degreesC, such a treatment led to the
undesirable deposition of a carbonaceous layer on the
surfaces. The mechanism of proton incorporation by acetone
vapor presumably is ion exchange reactions where protons
enter into the bulk and Sr segregates in the surface region.
(C) 2001 Elsevier Science BN. All rights reserved.},
keywords = {J (WoSType)},
cin = {IFF-EKM},
ddc = {530},
cid = {I:(DE-Juel1)VDB35},
pnm = {Festkörperforschung für die Informationstechnik},
pid = {G:(DE-Juel1)FUEK54},
shelfmark = {Chemistry, Physical / Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000172095500041},
doi = {10.1016/S0167-2738(01)00926-2},
url = {https://juser.fz-juelich.de/record/29436},
}