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Nuclear Magnetic Resonance in Solid State Ionics

Instructors:

Schedule

Sunday, 18 June; 11:15 - 13:05 in Room A5, Hall 7 of "Padova Fiere"

Tutorial Description

Structural studies of materials containing mobile ions are often hampered by the lack of long-range order found in well-defined crystalline phases. Powder x-ray diffraction yields structural parameters that have been averaged over hundreds of lattice sites, and is unable to provide structural information about amorphous phases. On the other hand solid state nuclear magnetic resonance (NMR) methods have been productively employed to investigate structural and chemical aspects of electrodes, electrolytes, interfaces and interphases. NMR is element- (nuclear-) specific and sensitive to small variations in the immediate environment of the ions being probed, for example Li+, and in most cases is a reliably quantitative spectroscopy in that the integrated intensity of a particular spectral component is directly proportional to the number of nuclei in the corresponding material phase. NMR is also a powerful tool for probing ionic and molecular motion in solid electrolytes with a dynamic range spanning some ten orders of magnitude through spin-lattice relaxation and self-diffusion measurements, the latter which may also be conducted in the presence of a driving electric field.

This lecture is aimed at researchers in solid state ionics who wish to gain information on basic and some more advanced methods used routinely in the study of ion conducting solids, whether they plan to use NMR in their own investigations, or to better appreciate the significance of the scientific literature or the results of their collaborators who use NMR.

Duration: 2 hours

Registration: 150 Euros.

Tutorial Topics:

Dr. Steve Greenbaum is Professor of Physics at Hunter College (CUNY) and a Fellow of the American Physical Society. He earned his PhD in Physics from Brown University, was a Postdoc at the U.S. Naval Research Laboratory and spent sabbatical years as a Fulbright Scholar at the Weizmann Institute and Senior Fellow at the Jet Propulsion Laboratory. He was Visiting Professor at several universities including Stony Brook, Rutgers, Tel Aviv, Paris-Sud, Padova, and Rome La Sapienza. Dr. Greenbaum studies disordered solids by magnetic resonance and synchrotron x-ray absorption, and has co-authored over 230 peer reviewed publications. He was a Jefferson Science Fellow at the U.S. State Department in 2014-15.

Dr. Mallory Gobet is a Postdoctoral Research Associate in Prof. Steven Greenbaum’s laboratory at Hunter College (City University of New York, USA). His research focusses on the evaluation of materials developed for fuel cells and rechargeable batteries. A chemist by training, Dr. Gobet earned his PhD from INRA-University of Burgundy (Dijon, France) in methodologies and applications of NMR spectroscopy. He also spent three years in the molten salt research team of CNRS-CEHMTI laboratory (Orléans, France) as a Postdoctoral Fellow. His expertise is in PFG, liquid-state, and solid-state NMR spectroscopy.