研究领域

Physical Chemistry

The activities cover a number of different highlight topics: "Surface Science with porphyrins" pays specific attention to the synthesis of metallo-porphyrinoids by in-situ metallation on a surface, their formation of supramolecular networks, their internal conformation, their electronic interaction with metal substrates and the adsorption of small molecules at their metal center. "Surface Science with Ionic Liquids" addresses the systematic study of their surface composition, of enrichment effects and the chemical reactivity of dissolved transition metal complexes. For the "Chemical modification of supported graphene" different preparation strategies are applied in order to achieve the desired properties. Our "In-situ studies of surface reactions" focus on the investigation of surface processes in-situ on timescales down to 1 sec by high-resolution XPS. By using "'High pressure' XPS" at pressures up to 1 mbar, i.e. in the so called 'pressure gap' we aim at bridging the gap between classical UHV experiments on model systems and the ambient conditions in real catalysis. "Electron beam induced deposition (EBID)" of precursor molecules allows to fabricate ultraclean metal and oxide nanostructures of arbitrary shape. And finally, "Ultrathin metal, alloy and oxide films" deal with the preparation of such systems and the systematic variation of their electronic, geometric and chemical properties.

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K. Gotterbarm, F. Späth, U. Bauer, C. Bronnbauer, H.-P. Steinrück, C. Papp&Reactivity of Graphene-Supported Pt Nanocluster Arrays&ACS Catal. 5 (2015) 2397-2403. / DOI: 10.1021/acscatal.5b00245 M. Stark, J. Träg, S. Ditze, W. Brenner, N. Jux, H.-P. Steinrück, H. Marbach&Supramolecular order and structural dynamics: A STM study of 2H-tetraphenylporphycene on Cu(111)&J. Chem. Phys. 142 (2015) 101925 1-6. / DOI: 10.1063/1.4908268 F. Späth, W. Zhao, C. Gleichweit, K. Gotterbarm, U. Bauer, O. Höfert, H.-P. Steinrück, C. Papp&Hydrogenation and Dehydrogenation of Nitrogen-doped Graphene investigated by X-Ray Photoelectron Spectroscopy&Surf. Sci. 634 (2015) 89-94. / DOI: 10.1016/j.susc.2014.11.009 H.-P. Steinrück and P. Wasserscheid&Ionic Liquids in Catalysis&Catal. Lett. 145 (2015) 380-397 (Invited Review). / DOI: 10.1007/s10562-014-1435-x W. Zhao, J. Gebhardt, F. Späth, K. Gotterbarm, C. Gleichweit, H.-P. Steinrück, A. Görling, C. Papp&Reversible Hydrogenation of Graphene on Ni(111) – Synthesis of 'Graphone'&Chem. Eur. J. 21 (2015) 3347-3358. / DOI: 10.1002/chem.201404938 M. Röckert, M. Franke, Q. Tariq, D. Lungerich, N. Jux, M. Stark, A. Kaftan, S. Ditze, H. Marbach, M. Laurin, J. Libuda, H.-P. Steinrück, O. Lytken&Insights in Reaction Mechanistics: Isotopic Exchange during the Metalation of Deuterated Tetraphenyl-21,23D‑porphyrin on Cu(111)&J. Phys. Chem. C 118 (2014) 26729-26736. / DOI: 10.1021/jp507303h K. Gotterbarm, C. Bronnbauer, U. Bauer, C. Papp, H.-P. Steinrück&Graphene-Supported Pd Nanoclusters Probed by Carbon Monoxide Adsorption&J. Phys. Chem. C 118 (2014) 25097−25103. / DOI: 10.1021/jp508454h C. Papp, P. Wasserscheid, J. Libuda, H.-P. Steinrück&Wasserstoff, chemisch gespeichert&Nachr. Chem. 62 (2014) 963-969. / DOI: 10.1002/nadc.201490355 J. Kirschner, Z. Wang, S. Eigler, H.-P. Steinrück, C. M. Jäger, T. Clark, A. Hirsch, M. Halik&Driving forces for the self-assembly of graphene oxide on organic monolayers&Nanoscale 6 (2014) 11344-11350. / DOI: 10.1039/C4NR02527J K. Gotterbarm, C. Steiner, C. Bronnbauer, U. Bauer, H.-P. Steinrück, S. Maier, C. Papp&Graphene-Templated Growth of Pd Nanoclusters&J. Phys. Chem. C 118 (2014) 15934−15939. / DOI: 10.1021/jp5052563 M. Stark, S. Ditze, M. Lepper, L. Zhang, H. Schlott, F. Buchner, M. Röckert, M. Chen, O. Lytken, H.-P. Steinrück, H. Marbach&Massive conformational changes during thermally induced self-metalation of 2H-tetrakis-(3,5-di-tert-butyl)-phenylporphyrin on Cu(111)&Chem. Commun. 50 (2014) 10225-10228. / DOI: 10.1039/C4CC03708A C. Papp, P. Wasserscheid, J. Libuda, H.-P. Steinrück&Liquid Organic Hydrogen Carriers: Surface Science Studies of Carbazole Derivatives&Chem. Rec. 14 (2014) 879-896 (Invited Contribution). / DOI: 10.1002/tcr.201402014 F. Vollnhals, M. Drost, F. Tu, E. Carrasco, A. Späth, R. H. Fink, H.-P. Steinrück, Hubertus Marbach&Electron-beam induced deposition and autocatalytic decomposition of Co(CO)3NO&Beilstein J. Nanotechnol. 5 (2014) 1175–1185. / DOI: 10.3762/bjnano.5.129 M. Schmid, H.-P. Steinrück, J. M. Gottfried&A new asymmetric Pseudo-Voigt function for more efficient fitting of XPS lines&Surf. Interface Anal. 46 (2014) 505-511. / DOI: 10.1002/sia.5521 H. Marbach and H.-P. Steinrück&Studying the dynamic behaviour of porphyrins as prototype functional molecules by scanning tunnelling microscopy close to room temperature&Chem. Commun. 50 (2014) 9034-9048 (Feature Article on Invitation). / DOI: 10.1039/C4CC01744G M. Röckert, M. Franke, Q. Tariq, S. Ditze, M. Stark, P. Uffinger, D. Wechsler, U. Singh, J. Xiao, H. Marbach, H.-P. Steinrück, O. Lytken&Coverage- and Temperature-Dependent Metalation and Dehydrogenation of Tetraphenylporphyrin on Cu(111)&Chem. Eur. J. 20 (2014) 8948-8953. / DOI: 10.1002/chem.201402420 C. Gleichweit, M. Amende, U. Bauer, S. Schernich, O. Höfert, M. P. A. Lorenz, W. Zhao, M. Müller, M. Koch, P. Bachmann, P. Wasserscheid, J. Libuda, H.-P. Steinrück, C. Papp&Alkyl chain length-dependent surface reaction of dodecahydro-N-alkylcarbazoles on Pt model catalysts&J. Chem. Phys. 140 (2014) 204711 1-9. / DOI: 10.1063/1.4875921 M. Chen, M. Röckert, J. Xiao, H.-J. Drescher, H.-P. Steinrück, O. Lytken, J. M. Gottfried&Coordination Reactions and Layer Exchange Processes at a Buried Metal–Organic Interface&J. Phys. Chem. C 118 (2014) 8501−8507. / DOI: 10.1021/jp5019235 M. Amende, C. Gleichweit, S. Schernich, O. Höfert, M. P. A. Lorenz, W. Zhao, M. Koch, K. Obesser, C. Papp, P. Wasserscheid, H.-P. Steinrück, J. Libuda&Size and Structure Effects Controlling the Stability of the Liquid Organic Hydrogen Carrier Dodecahydro-N-ethylcarbazole during Dehydrogenation over Pt Model Catalysts&J. Phys. Chem. Lett. 5 (2014) 1498-1504. / DOI: 10.1021/jz500157r Z. Ferencz, A. Erdőhelyi, K. Baán, A. Oszkó, L. Óvári, Z. Kónya, C. Papp, H.-P. Steinrück, J. Kiss&Effects of Support and Rh Additive on Co-Based Catalysts in the Ethanol Steam Reforming Reaction&ACS Catal. 4 (2014) 1205-1218. / DOI: 10.1021/cs500045z&