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Seminar - Designing Catalysts for Meeting the DOE 150C ChallDesi

Thursday, September 7, 2017
9:30am – 10:30am

Storrs Campus
IMS 20

UConn Chemical & Biomolecular Engineering Invites you to a seminar by:

Dr. Abhaya K. Datye Distinguished Regents’ Professor & Department Chair

Department of Chemical and Biological Engineering and Center for Micro-Engineered Materials University of New Mexico

Designing Catalysts for Meeting the DOE 150C Challenge for Exhaust Emissions

As more efficient combustion engines are developed for transportation, it is expected that less heat will be wasted in the exhaust, leading to lower exhaust temperatures. Hence DOE has set a goal of achieving 90% conversion of target pollutants by 150 °C. To meet exhaust emission standards, it is necessary to develop catalysts that provide light off at lower temperatures than the current generation of catalysts (which become active at ~200 °C). The new targets cannot be achieved simply by increasing the loading of noble metals. One way to achieve higher reactivity at low temperatures is by control of the crystallite size of the platinum group metal (PGM) nanoparticles. Smaller particles and sub-nanometer clusters show higher reactivity, and in the limit, we can envision single atom catalysts, which provide the highest atom efficiency to reduce noble metal usage, since every atom is involved in the catalytic cycle. The challenge is to make these single atom and sub-nm structures durable so they can survive high temperature aging protocols and demonstrate performance under realistic conditions. This presentation will highlight our approach to enhance the reactivity and thermal durability of emissions control catalysts using single atom catalysts (SACs).

Abhaya Datye has been on the faculty at the University of New Mexico since 1984. Abhaya received his Ph.D. in chemical engineering from the University of Michigan. He has authored 230 publications, 5 patents and has presented 162 invited lectures around the world including the Europacat at Innsbruck, Austria, Faraday Discussion at Liverpool in the UK, WE Heraeus conference in Bad Honnef, Germany, the School for Electron Microscopy at Berlin and the Taniguchi conference in Japan. His published work has received ~11,000 citations with an h-index of 58 (Google Scholar). He is a fellow of the AIChE, the Microscopy Society of America and the Royal Society of Chemistry. He is involved in international collaborations, having led the successful NSF Partnership for International Research and Education (PIRE) on Conversion of Biomass derived reactants into Fuels, Chemicals and Materials (a collaboration between faculty and researchers in the US, Denmark, Germany, Netherlands and Finland). He has also done sabbaticals at BP in the UK, at Haldor Topsoe in Denmark and extended visits to the Univ. of Poitiers in France and he was honorary professor at the University of Witwatersrand in South Africa. He has been actively involved in the North American Catalysis Society, serving as co-chair for the Denver NAM 2017, program co-chair for the Snowbird NAM 1995. He

Contact:

leah.winterberger@uconn.edu

Chemical & Biomolecular Engineering (primary), Chemistry Department, Institute of Material Science, Materials Science & Engineering Department, UConn Master Calendar

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