Chemistry Graduate Seminar by Professor Héctor D. Abruña, Cornell University
Title: Operando Methods for Characterization of Fuel Cell and Battery Materials
Abstract:
This presentation will deal with the development of operando methods for the study and characterization of fuel cell and battery materials. The presentation will begin with a brief overview of the methods employed. Particular emphasis will be placed on the use of X-ray based methods including X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS), transmission electron microscopy (TEM) under active potential control, Fourier Transform Infra Red (FTIR) spectroscopy, confocal Raman and differential electrochemical mass spectrometry (DEMS). The utility of these methods will be illustrated by selected examples including conversion reactions of Mn3O4 as anode material for lithium ion batteries (LIBs), lithiation/de-lithiation of LiFePO4 via TEM, spectroscopic studies of Li/S batteries and the use of DEMS to characterize electrolyte systems for LIBs. The presentation will conclude with an assessment of future directions.
Héctor D. Abruña
E. M. Chamot Professor
Department of Chemistry and Chemical Biology
Director, Energy Materials Center at Cornell and
Director, Center for Molecular Interfacing
Baker Laboratory, Cornell University
Ithaca, New York 14853-1301
Tel. (607) 255-4720
FAX (607) 255-9864
e-mail: hda1@cornell.edu
http://www.chem.cornell.edu/faculty/index.asp?fac=11
