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SUMMARY:Catalysis Lectureship 2022 - Christophe Copéret\, ETH Zürich
DESCRIPTION:Bridging the gap between well-defined and industrial catalysts via a molecular approach \nIndustrial processes\, in particular large-scale ones\, mostly rely on heterogeneous catalysts. The search for more sustainable processes and the changes in environmental policies impose the continuous development of improved catalyst performances and catalytic processes\, as well as the exploration of alternative routes. However\, due to their inherent complexity\, heterogeneous catalysts are mostly developed empirically rather than through detailed structure – activity relationships as the nature of the active sites are rarely known. \nIn this context\, our group has been interested in understanding and controlling chemistry on surfaces\, with the ultimate goal to generate isolated metal sites with defined chemical environment.[1] This approach has been used to develop highly active and selective single-site catalysts that can overperformed their homogeneous counterparts\, but it can also provide useful information to understand and further develop industrial catalysts[2] or to study much more complex systems such as  supported nanoparticles\, where support effects\, interfaces\, alloying… remain complex to understand at the molecular level. \nThis lecture will be developed around these themes and will show that a careful characterization of surface sites on a molecular level is key to develop high performance catalysts and to bridge the gap between fundamental and applied catalysis.[3] \nReferences: \n1 C. Copéret\, A. Comas-Vives\, M. P. Conley\, D. Estes\, A. Fedorov\, V. Mougel\, H. Nagae\, F. Núñez-Zarur\, P. A. Zhizhko Surface Organometallic and Coordination Chemistry towards Single-Site Heterogeneous Catalysts: Strategies\, Methods\, Structures\, and Activities. Chem. Rev. 2016\, 16\, 323-421. DOI: 10.1021/acs.chemrev.5b00373 \n2 C. Copéret\, F. Allouche\, K. W. Chan\, M. P. Conley\, M. F. Delley\, A. Fedorov\, I. B. Moroz\, V. Mougel\, M. Pucino\, K. Searles\, K. Yamamoto\, P. A. Zhizhko\, Bridging the Gap between Industrial and Well-Defined Supported Catalysts. Angew. Chem. Int. Ed. 2018\, 57\, 6398-6440. DOI: 10.1002/anie.201702387 \n3 a) C. Copéret Single-Sites and Nanoparticles at Tailored Interfaces Prepared via Surface Organometallic Chemistry from Thermolytic Molecular Precursors. Acc. Chem. Res. 2019\, 52\, 1697-1708. DOI: 10.1021/acs.accounts.9b001388. b) Deciphering Metal-Oxide and Metal-Metal Interplay via Surface Organometallic Chemistry: A Case Study with CO2 Hydrogenation to Methanol. S. R. Docherty\, C. Copéret J. Am. Chem. Soc. 2021\, 143\, 6767–6780. DOI: 10.1021/jacs.1c02555. c) Heterogeneous Alkane Dehydrogenation Catalysts Investigated via a Surface Organometallic Chemistry Approach. S. R. Docherty\, L. Rochlitz\, P.-A. Payard\, C. Copéret Chem. Soc. Rev. 2021\, 50\, 5806 – 5822. DOI: 10.1039/d0cs01424a.
URL:https://www.chemistry.ucla.edu/seminars/catalysis-lectureship-2022-christophe-coperet-eth-zurich/
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DTSTART;TZID=America/Los_Angeles:20220316T161500
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DTSTAMP:20260614T170001
CREATED:20211215T173901Z
LAST-MODIFIED:20211215T173901Z
UID:13568-1647447300-1647447300@www.chemistry.ucla.edu
SUMMARY:Chem 278: Prof. Kimberly A. See
DESCRIPTION:“One is the Loneliest Number: Multivalent and Multielectron Processes for Next-Generation Batteries”
URL:https://www.chemistry.ucla.edu/seminars/chem-278-prof-kimberly-see/
CATEGORIES:Inorganic Chemistry,Seminars
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