Directing catalytic reactions at solid-liquid interfaces: Using renewable and recycled carbon to make platform chemicals

Chemical transformations of non-volatile biomass and waste plastic catalyzed by high surface area materials are strongly influenced by partitioning of solvents, reactants, and products between the bulk liquid phase and the surface or pore volume.  The relative affinities of the reacting molecules for the solution phase vs. the surface give rise to non-monotonic activity and selectivity trends, as well as changes in mechanism for acid/base-catalyzed isomerization and metal-catalyzed hydrogenation. This lecture will describe our recent efforts to study these effects at the molecular level by probing the composition of the solid-liquid interface, while simultaneously observing the kinetics of catalytic reactions that lead to upgrading carbon-based molecules.


Biography 

Susannah Scott is a Distinguished Professor in both Chemical Engineering and in Chemistry & Biochemistry at the University of California, Santa Barbara. She  received her Ph.D. in Inorganic Chemistry from Iowa State University, under the direction of Jim Espenson and Andreja Bakac, for her work on the activation of O2 and transition metal-catalyzed oxidation mechanisms. After a NATO Postdoctoral Fellowship with Jean-Marie Basset at the Institut de recherches sur la catalyse (CNRS) in Lyon, France, she joined the faculty of the University of Ottawa (Canada) in 1994, where she was named a Canada Research Chair in 2001. In 2003, she moved to the University of California, Santa Barbara, where she currently holds the Duncan and Suzanne Mellichamp Chair in Sustainable Catalysis and is the Chair of the Academic Senate.

Scott is an Executive Editor for ACS Catalysis, a member of the Board of Reviewing Editors for Science, and a member of Scientific Advisory Boards at the Fritz Haber Institute, SUNCAT, SSRL, and NREL. Her research interests include the design of heterogeneous catalysts with well-defined active sites for the conversion of unconventional carbon-based feedstocks, as well as environmental catalysts to promote air and water quality. She develops new kinetic and spectroscopic methods to probe reaction mechanisms. In 2014, she founded the Mellichamp Academic Initiative in Sustainable Manufacturing and Product Design at UC Santa Barbara, where she now leads an interdisciplinary program in research and education involving chemistry, chemical engineering, materials, environmental science, industrial ecology, technology management, political science, economics, and science communication. In 2022, she will chair the Gordon Research Conference on Catalysis.

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