Title: Operando Spectroscopy in Catalysis, Membranes, and Beyond
Dr. Casey O’Brien, Assistant Professor
Department of Chemical and Biomolecular Engineering
Operando spectroscopy is the methodology in which the structure of a catalytic material is analyzed spectroscopically while the reaction products are measured simultaneously. By characterizing the catalyst structure and analyzing the reaction products simultaneously, it is possible to elucidate reaction mechanisms and to identify catalyst structure-function relationships. In effect, operando spectroscopy enables a more rational design of catalytic materials than is possible with ex-situ spectroscopic techniques. While this methodology has been applied almost exclusively to the study of catalytic materials, other research areas would benefit greatly by adopting the operando tools and techniques. In this presentation, I will first demonstrate the utility of operando spectroscopy in elucidating catalytic reaction mechanisms. Then I will discuss how the operando methodology can be applied to understand transport mechanisms in gas separation membranes. Finally, I will discuss other areas that could benefit from the operando spectroscopy methodology. …
Presented by Dr. Souvik Mahapatra
Melchor Visiting Professor in Engineering
Professor of Electrical Engineering, Indian Institute of Technology, Bombay
Modern logic and memory FETs consist of a dual (or triple) layer gate insulator stack. Charging of defects (pre-existing and generated during operation) in the gate stack shifts the performance of the FETs and is responsible for the eventual reliability of these devices and associated systems. In this talk, we will discuss several mechanisms and models that have been proposed in the literature to model the time kinetics of these defects, and benchmark those against experimental data. Examples will be shown using Bias Temperature Instability in logic FETs, and modifications (if any) needed to apply these models for memory devices will be discussed. …
The University of Notre Dame has opened its annual competition for the Naughton Fellowships. The prestigious international fellowships provide funding for exceptional Ph.D., masters, or undergraduate students with an aptitude for the STEM disciplines to complete research or study in Ireland or at Notre Dame.…
Irish students can earn a Master's degree in one year through the Engineering, Science, and Technology Entrepreneurship Excellence Master's program, ESTEEM.
Applications close on Monday, February 26, 2018 by 11:59 p.m.