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Workshop / Seminar

CHE 598 seminar: recent advances in ambient-pressure X-ray photoelectron spectroscopy: studying the reaction of 2-propanol on SnO2(110)

Spark
Spark G45 - Pullman Campus; Floyd 224 - Tri-Cities Campus
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About the event

Presenter: Dr. Gregory Herman, Head & Professor, School of Chemical, Biological and Environmental Engineering, Oregon State University

Gregory S. Herman is the Head and Professor of the School of Chemical, Biological, and Environmental Engineering at Oregon State University (OSU), Director of the OSU site for the National Science Foundation – National Nanotechnology Coordinated Infrastructure – Northwest Nanotechnology Infrastructure program, Director of the Ambient Pressure Surface Characterization Laboratory, and an Adjunct Professor in Chemistry, Physics and Materials Science at OSU.

He has held senior positions at Pacific Northwest National Laboratory, Hewlett-Packard, and Sharp Laboratories of America. He has published over 120 publications and is an inventor on over 65 patents. He is a Fellow of the American Vacuum Society, and has received awards related to his research and innovations including, the Sharp Laboratories of America Invention of the Year, the TechConnect Innovation Award, and the OSU College of Engineering Research Collaboration and Research awards. He holds several key patents for oxide semiconductor compositions for thin film transistor applications, and these materials are currently being used in cell phones and televisions. His research interests are focused on understanding the detailed mechanistics of surface reactions to advance electronic devices, nanomanufacturing, catalysis, and biosensing.

Recent advances in ambient-pressure X-ray photoelectron spectroscopy: studying the reaction of 2-propanol on SnO2(110)

The surface chemistry of materials is of critical importance for understanding catalysis, sensing, advanced manufacturing, corrosion, and many other applications. Ambient pressure X-ray photoelectron spectroscopy (AP-XPS) is a relatively new technique for studying surfaces, and interest in this technique has significantly increased in recent years due to the availability of laboratory-based equipment.  A benefit of AP-XPS, over standard XPS, is that experiments can be performed in more realistic conditions, and can provide detailed information on chemical states and compositions at surfaces. In this presentation I will give an overview of the AP-XPS capabilities at Oregon State University, and give an overview of the oxidation of 2-propanol on the SnO2(110) surface. For these studies we have characterized reactions using both AP-XPS and in-situ mass spectrometry. These results allow us to better understand both reaction mechanisms and resulting selectivities.

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