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Mixed conducting perovskites and their solid state chemistry [Elektronische Ressource] / von Julia-Maria Martynczuk

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117 Pages
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Mixed conducting perovskites and theirsolid state chemistryVon der Naturwissenschaftlichen Fakultatder Gottfried Wilhelm Leibniz Universitat Hannoverzur Erlangung des GradesDoktorin der NaturwissenschaftenDr. rer. nat.genehmigte DissertationvonJulia-Maria Martynczuk(Diplom-Chemikerin)geboren am 19.03.1981 in Hannover2009Referent: Prof. Dr. Jurgen CaroInstitut fur Physikalische Chemie und Elektrochemie,Leibniz Universitat HannoverKorreferent: Prof. Dr. Ludwig J. GaucklerDepartemente der Materialwissenschaft,ETH Zuri chTag der Promotion: 29.01.2009Our great discovery was this:God is Love, God is a Father!Our heart opened up and reached out to Himwho loves us and makes of usthe very object of His love,who even "counts the hair on our head".Nothing happens without His consent:happy or sad circumstances acquire a new meaning.We cannot fear anything anymore.We nd a new hope, a new strength,a new con dence:we experience the Love of the Onewho follows the history of mankindas well as the small history of each one of uswith an immense Love.All this is God’s gift which makes us shout:"We believe in Love".from Chiara LubichPrefaceThe results of this thesis were achieved in the past three years during my work as ascientic assistant at the Institute of Physical Chemistry and Electrochemistry at theGottfried Wilhelm Leibniz Universitat Hannover under the supervision of Prof. Dr.Jurgen Caro.

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Published 01 January 2009
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Mixed conducting perovskites and their
solid state chemistry
Von der Naturwissenschaftlichen Fakultat
der Gottfried Wilhelm Leibniz Universitat Hannover
zur Erlangung des Grades
Doktorin der Naturwissenschaften
Dr. rer. nat.
genehmigte Dissertation
von
Julia-Maria Martynczuk
(Diplom-Chemikerin)
geboren am 19.03.1981 in Hannover
2009Referent: Prof. Dr. Jurgen Caro
Institut fur Physikalische Chemie und Elektrochemie,
Leibniz Universitat Hannover
Korreferent: Prof. Dr. Ludwig J. Gauckler
Departemente der Materialwissenschaft,
ETH Zuri ch
Tag der Promotion: 29.01.2009Our great discovery was this:
God is Love, God is a Father!
Our heart opened up and reached out to Him
who loves us and makes of us
the very object of His love,
who even "counts the hair on our head".
Nothing happens without His consent:
happy or sad circumstances acquire a new meaning.
We cannot fear anything anymore.
We nd a new hope, a new strength,
a new con dence:
we experience the Love of the One
who follows the history of mankind
as well as the small history of each one of us
with an immense Love.
All this is God’s gift which makes us shout:
"We believe in Love".
from Chiara LubichPreface
The results of this thesis were achieved in the past three years during my work as a
scientic assistant at the Institute of Physical Chemistry and Electrochemistry at the
Gottfried Wilhelm Leibniz Universitat Hannover under the supervision of Prof. Dr.
Jurgen Caro. The nancial support was granted by the Deutsche Forschungsgemein-
schaft for the project FE 928 1-1/-2 under the guidance of Dr. Armin Feldho and
Prof. Dr. Haihui Wang.
During my time as scientic assistant I contributed to 13 publications and 12 con-
ferences with talks or (oral) posters, which are listed in the appendix. One of the
posters (ICIM9, Lillehammer, Norway) was awarded as best poster in July 2006 and
in June 2008 I obtained the Zonta Award for Young Scientists for excellent scientic
performance and outstanding voluntary service. The following statement will point
out my contributions to the particular research articles included in this thesis. The
thesis comprises six selected research articles. Three of them are written by myself
and in three of them I am co-author.
Foremost, I would like to acknowledge the fruitful discussions and the encourage-
ment during the preparation of publications from my co-authors, particularly from
Dr. Armin Feldho , Dr. Mirko Arnold and Prof. Dr. J urgen Caro.
Two articles studying the synthetic process of (Ba Sr )(Fe Zn )O perovskite-0:5 0:5 0:8 0:2 3
type oxide (BSFZ) are presented in chapter 2. The