Sunday, June 28, 2009  
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When you register for the workshop you are entitled to sit in on
all three lecture topics


Location: Confederation 5&6
(This is considered one room - Located1 flight up from the Main Lobby of the Hotel)
Electrochemistry of Materials
10:30 - 13:15

Textbooks on electrochemistry mostly deal with electrochemical processes in aqueous solutions which constitute a mature field developed during many decades. Details on the electrochemistry of solids are often hardly found in such textbooks. This is partly due to the fact that broad research activities dealing with electrochemical reactions in/on solids started much later and consequently even a number of very fundamental aspects in this fast growing field are still in progress. In this tutorial several basic topics of electrochemistry of materials will be introduced and discussed in the light of applications such as solid oxide fuel cells, sensors or batteries but also in comparison with situations found in aqueous electrochemistry and with respect to open questions:

 
 
  1. Thermodynamics of electrode-electrolyte interfaces including Galvani potential difference and cell voltages.
  2. Electrochemical kinetics: Concepts of overportential, reaction mechanisms and rate-limiting steps.
  3. Electrochemical properties of interfaces: Electrochemical polarization resistance and current-voltage relations.
  4. Impedance spectroscopy as an important measurement technique in electrochemistry of materials.
 
 

INSTRUCTORS:
Jürgen Fleig
1991: Diploma in Physics, University of Tübingen, Germany
1995: PhD in Chemistry, Max-Planck Institute for solid State Research, Stuttgart, Germany
1995-2005:
Research Scientist at Max-Planck Institute for Solid State Research, Stuttgart, Germany
2001:
Habilitation in Physical Chemistry at University of Ulm, Germany
Since 2005:
Professor for Electrochemistry at Vienna University of Technology, Austria
Active in the fields: solid state electrochemistry, solid oxide fuel cells, electroceramics, grain boundaries, defect chemistry, impedance spectroscopy

Bernard A. Boukamp
1968: Diploma in Chemistry and Physics, State University Utrecht, The Netherlands
1974: PhD in Chemistry, State University Utrecht, The Netherlands
1974-1980:
Research Associate Stanford University, Dept. of Materials Science & Engineering, California, USA
1980-1983:
Post Doctoral Fellow, State University of Groningen, The Netherlands
1984-1993:
Post doctoral Fellow/Research Associate, University of Twente, The Netherlands
1993-2006:
Assistant professor in Inorganic Materials Science, subject: solid State Electrochemistry
Since 2004:
Program Coordinator, new Bachelor track 'Advanced Technology'
Since 2006:
Associate professor, Inorganic Materials Science Group, University of Twente. Research topics: solid state electrochemistry, impedance spectroscopy, surface oxygen exchange, solid oxide fuel cells


 
  Defects, Disordered Structures and Mobile Ions
14:15 - 15:45
 
 

DEFECTS
1. Point Defects
2. Kroger Vink Notation
3. Defect Equilibria
4. Non-stoichiometry and Brouwer Diagrams
5. Aliovalent Substitution

DISORDERED STRUCTUURES
1. Fluorite and Fluorite Related Structures
2. Perovskite and Perovskite Related Structures
3. Layered Structures

MOBILE IONS
1. Oxygen Ion Conductivity and Diffusion
2. Defect Trapping and Size Effects
3. Interstitial Ion Transport
4. Oxygen Isotopic Exchange Measurements

INSTRUCTOR:
John A. Kilner
1968 B.Sc. Honor's Class II Div. 1, Dept. of Physics, University of Birmingham
1971 M.Sc, Dept. of Physics, University of Birmingham
1975 PhD, Dept. of Physical Metallurgy & Science of Materials, University of Birmingham
1975-1979 Research Fellow, University of Leeds (Dept. of Ceramics)
1979-1983 Wolfson Research Fellow
1983-1987 S.E.R.C. Advanced Research Fellow (Information Technology)
1987-1991 Lecturer
1991-1995 Reader in Materials
1998-2000 Dean of the Royal School of Mines
2000-2006 Head of Department of Materials
2004-2009 Co-Director of the UK Energy Research Center
1995-2006 Professor of Materials Science
2006-Present B.C.H. Steele Chair in Energy Materials
Imperial College of London, Faculty of Engineering, Dept. of Materials

Professor Kilner is primarily interested in studying the exchange and diffusion of oxygen in oxide ceramic materials for applications in devices such as fuel cells, oxygen separators and sensors, and has been instrumental in the development of isotopic exchange-SIMS techniques to study these phenomena. Much of his work is now centered upon the development of the Intermediate Temperature Fuel Cell and improved understanding of surface and interfacial phenomena which is crucial for further development of this device.


 
  Modeling Ions in Motion
16:15 - 17:45
 
  Naturally, the motion of ions is the key step for charge conduction in, e.g., batteries. With computer simulations it becomes possible to elucidate the nature of the relevant dynamic processes. In this tutorial I will proceed in 3 steps.
 
     
 
  1. Introduction of the basic elements of computer simulations. In particular the specific advantages but also the limitations as compared to experimental studies are discussed.
  2. Application to inorganic ion conductors. for the example of alkali silicate systems it is shown that the ion dynamics can be interpreted as hops between well-defined sites. Surprising features can be extracted from a more detailed analysis. For example the nature of the mixed alkali effect and the relevance of cooperative ion dynamics are discussed.
  3. Application to polymer electrolytes. In contrast to inorganic systems there is no decoupling between ionic and polymeric motion. As a consequence the ion dynamics is of a very different nature as compared to inorganic systems and the ion dynamics reflects the properties of the polymeric dynamics.
 
 


NSTRUCTOR:
Andreus Heuer
Since 2007 Head of the IT-Steering Committee (IV-Lenkungsausschuss) of the WWU
Since 2007 Additional membership in the faculty of physics
Since 1999 Professor for Theoretical Physical Chemistry in Münster (faculty of chemistry)
1998 Habilitation in Theoretical Physics at the University of Mainz
Title: Dynamik Glasbildender Systeme Auf Mikroskopischer Skala
1993-1999 Member of the scientific staff of the MPI for Polymer Research in Mainz
(group of Prof. H.W. Spiess)
1991-1993 Postdoc at the MIT in Cambridge, USA, with Prof. R.J. Silbey
1988-1991 PhD thesis at the MPI F. Medizinische Forschung in Heidelberg with Prof. U. Haeberlen and Prof. H. Horner
Title: Tieftemperaturdynamik beim Traslations - und Rotationstunneln
1983-1988 Studies of physics (Diplom) and mathematics (Vordiplom) at the Universiies of Dortmund and Heidleberg. Title of the Diploma Thesis:
Untersuchung des Ferroelektrischen Phasenübergangs von Triglycinsulfat Mittels Deuteriumkernresonanzslektroskopie + Nichtlineare Spektrale Analyse von NMR-Daten zur Reduktion des Totzeiteffekts