Tutorial EN20—Electrochemical Interfacial Methods for Energy Systems

8:00 am – 9:45 am

Part I: Mark Orazem
Electrochemical Impedance Spectroscopy for Probing Interfacial Reactions

This course is intended for chemists, physicists, materials scientists and engineers with an interest in applying electrochemical impedance techniques to study a broad variety of electrochemical processes. The attendee will develop a basic understanding of the technique, the use of graphical methods to interpret measurements in terms of meaningful physical properties and model development based on proposed reaction mechanisms. The course is based on M.E. Orazem and B. Tribollet, Electrochemical Impedance Spectroscopy, 2nd ed. (Wiley, Hoboken, NJ, 2017). 

9:45 am – 10:15 am   BREAK

10:15 am – 12:00 pm

Part II: Yang Ren
Neutron and Synchrotron X-Ray for Energy Materials Research

The general knowledge, uniqueness and the available characterization capabilities (diffraction/scattering, imaging and spectroscopy) of neutron and synchrotron x-ray for energy materials research will be introduced first. Difference and similarity between neutron and x-ray and their complementarity will be discussed. Some examples on neutron and synchrotron x-ray study of energy materials will be presented, which will include (1) in situ/operando characterizing battery electrode materials during high temperature formation as well as during charging/discharging processes; (2) in situ probing neutron-sensitive elements, like Li and H, in solid-state electrolytes and fuel cells; and (3) in operando studying electronic state evolution of active materials in batteries using element-specific synchrotron techniques, etc. Finally, future perspectives of neutron and synchrotron techniques for in situ/operando study of energy materials will be discussed.

Instructors

• Mark Orazem, University of Florida
• Yang Ren, Argonne National Laboratory