The quest for selective oxidation with air
Abstract:Selective oxidation of organic molecules is a catalysis paradox. Oxygen is freely available, but its high kinetic barrier meansthat once it is activated, reactivity is high and selectivity is low.There are three traditional solutions to this problem: (i) work at lowconversions. This engineering solution is practical, but it means large recycle streams and low per-pass yields. (ii) use H,o,peracetic acid or t-BuOOH instead of oxygen.This also works, but it costs an extra reagent. (ii) Use platinum. Well, platinum canactivate o, but it's often too expensive and scarce for large- scale applications. We found a fourth way: catalytic surfaces that donate an electron to the antibonding orbital in the oxygen molecule, creatinga peroxide-like active species in situ. In the lecture, I will show how to make these materials and control their surface parame-ters.l.2] I will then show how the active species can be generated and used in the selective oxidation of alcohols and hydrocarbonswith oxygen.[3- 5]  A simple syntbesis of an N ·Doped carbon ORR Catalyst: Hierarchical micro/meso/macro porosity and graphitic shells. D, Eisenberg, W . Stroek, N. J. Geels, c. S. Sandu, A. Heller, N. Yan and G. Rothenberg, Chem. Eur. J.,2016, 22, 501 .DOI: 10.1002/chem.201504568 Understanding oxygen activation on metal- and nitrogen-co-doped carbon catalysts. D. Eisenberg, T.K. Slot and G. Rothenberg, ACS Catal.,2018, 8, 8618. DOI: 10. 102 1/acscatal.8b01045  Cooperative surface -particle catalysis: the role of the active doughnut in catalytic ox idation. T.K. Slot, D. Eisenberg and G. Rothenberg, ChemCatChem, 2018, 10, 21 19.DOI: 10.1002/cctc .201 701819 (open access)  Cooperative catalysis for selective alcohol oxidation with molecular oxygen. T.K. Slot, D. Eisenberg, D. vanNoordenne, P. Jungbacker and G. Rothenberg, Chem. Eur. J.,2016, 22, 12307.DOI: 10.1002/chem.201602964  Selective catalytic oxidation of cyclohexene with molecular oxygen: radical vs. non-radical pathways. I.M. Denekamp, M. Antens, T.K. Slot and G. Rothenberg, ChemCatChem, 2018, 10, 1035.DOI: 10. 1002/cctc.201701538 (open access) About the Speaker:Gadi Rothenberg received his PhD in Applied Chemistry summa cum laude from the Hebrew University of Jerusalem in 1999. Aftertwo years as a Marie Curie Fellow at the University of York, he moved to the University of Amsterdam. Since 2008 he is Professor andChair of Heterogeneous Catalysis and Sustainable Chemistry. Rothenberg teaches courses on catalysis and workshops on scientific writ-ing and innovation. He has published two books and over 200 papers in peer-reviewed journals. He has also invented 16 patents, andco-founded the companies Sorbisense A/S, Yellow Diesel BV and Plantics BV. In 2017 he was appointed Senior Visiting Scholar atFudan University, and in 2018 he was appointed L ady Davis Visiting Professor at the Hebrew University.