O.M. Stewart Colloquium Series

Monday, August 28, 2017 4:00pm

Physics Bldg., Rm. 114


Prof. Tabbetha Dobbins, Rowan University

Prof. Tabbetha Dobbins, Rowan University, presents, "New Possibilities for Understanding Complex Metal Hydrides via Synchrotron X-ray and Neutron Scattering Studies."

This research seeks to understand the role of catalysts and nanostructuring plays in structure and dynamics in hydrides. The talk will include results of X-ray absorption spectroscopy (XAS), Ultrasmall-angle X-ray scattering

(USAXS) and Quasi-elastic neutron scattering (QENS) studies.  XAS is used to examine the chemical interaction of catalysts (TiCl3) with the host hydride powder (NaAlH4). USAXS is used to examine the morphological changes in the hydrides both with and without catalysts.  Finally, QENS provides information on hydrogen dynamics as a result of catalyst addition and also due to nanostructuring.  Our research uses several specialized synchrotron X-ray and neutron techniques to elucidate the interactions of catalysts with the host hydride structures.  This presentation will describe those techniques and their use in describing the physical and chemical processes occurring in the materials.

Refreshments will be served at 3:30 p.m. in Rm. 223A (Physics Library).