% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@INPROCEEDINGS{Berger:808409,
author = {Berger, Cornelius and Braun, Waldemar and Yazhenskikh,
Elena and Menzler, Norbert H. and Guillon, Olivier and Bram,
Martin},
title = {{T}hermodynamic properties and kinetic study of
{C}a{F}e$_{3}${O}$_{5}$ for high temperature applications},
reportid = {FZJ-2016-02232},
year = {2016},
abstract = {CaFe<sub>3</sub>O<sub>5</sub> is a promising material for
repeated redox cycles at high temperatures due to its
remarkable resistance against microstructural degradation.
Therefore, it could be used as an oxygen carrier in the
partial oxidation or full combustion of hydrocarbons and a
subsequent water-gas-shift reaction for the production of
hydrogen in a chemical looping process [1]. Also, it is a
major candidate material for the internal energy storage in
solid oxide cells. Therein, the material acts as a
reversible storage for oxygen ions and thus buffers the
surrounding atmosphere (H<sub>2</sub>O/H<sub>2</sub>) by
compensating local changes in the gas composition. Like
this, expenses related to gas handling, metering, and
storing can be saved. The thermodynamic properties of this
phase are calculated and compared to experimentally gathered
kinetic results, achieved via repeated redox cycling at 800
°C in a H<sub>2</sub>O/H<sub>2</sub> atmosphere. The
microstructural stability is shown via SEM and the phase
composition is measured with XRD. A modeling approach is
used to predict the interaction of the solid phase with the
surrounding gas. Finally, the material is applied in a fuel
cell – electrolyzer system, where the redox activity of
the material can be measured and analyzed using the
time-voltage-current plot. As a result, the accuracy of the
phase diagram could be verified, the stability of the
microstructure could be proved, and thus a proof-of-concept
was established.},
month = {Mar},
date = {2016-03-29},
organization = {15th International Conference on High
Temperature Materials Chemistry,
Orléans (France), 29 Mar 2016 - 1 Apr
2016},
subtyp = {After Call},
cin = {IEK-1 / IEK-2 / JARA-ENERGY},
cid = {I:(DE-Juel1)IEK-1-20101013 / I:(DE-Juel1)IEK-2-20101013 /
$I:(DE-82)080011_20140620$},
pnm = {135 - Fuel Cells (POF3-135) / SOFC - Solid Oxide Fuel Cell
(SOFC-20140602) / HITEC - Helmholtz Interdisciplinary
Doctoral Training in Energy and Climate Research (HITEC)
(HITEC-20170406)},
pid = {G:(DE-HGF)POF3-135 / G:(DE-Juel1)SOFC-20140602 /
G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/808409},
}