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Casey O'Brien

Casey O'Brien

Email: cobrie23@nd.edu

Phone: 574-631-5706

Office: 240D McCourtney Hall


Ph.D. Chemical Engineering, Carnegie Mellon University, 2011

B.S. Chemical Engineering, University of Colorado at Boulder, 2006


Assistant Professor, Department of Chemical and Biomolecular Engineering, University of Notre Dame (2017-present)

Postdoctoral Fellow, Sensors and Electron Devices Directorate, U.S. Army Research Laboratory (2014-2017)

Postdoctoral Fellow, Chemical Physics Department, Fritz Haber Institute of the Max Planck Society (2011-2014)

Summary of Activities/Interests

The O'Brien group is primarily focused on reducing the environmental impact of the chemical industry by developing catalytic materials that promote desirable reaction pathways and block reaction pathways that lead to environmentally harmful byproducts. Our general approach to developing environmentally-friendly catalysts involves (1) synthesizing catalytic materials, (2) using in-situ/operando spectroscopic characterization to elucidate reaction mechanisms, and (3) systematically changing the structure and composition of catalysts to obtain detailed structure-function relationships. Within this general approach, our main expertise is in using in-situ/operando vibrational spectroscopy to understand how the structure and composition of catalytic surfaces influences their reaction mechanisms. In addition to developing catalytic materials, the O'Brien group also develops new spectroscopic tools that couple in-situ spectroscopic characterization of membrane materials and measurement of trans-membrane gas permeation rates simultaneously (operando membrane spectroscopy).


Real-time observations and measurements during separation processes could help reduce carbon footprint

October 30, 2019

Casey O’Brien, assistant professor of chemical and biomolecular engineering at the University of Notre Dame, and his team have developed a novel method to see and measure carbon dioxide (CO2) on the molecular level, in order to provide details of how the gas moves across polymeric facilitated transport membranes (FTMs) during separation processes.


Filed under: Publications