Dr. Olaf Brummel – Model Electrocatalysis
Dr. Olaf Brummel
Department of Chemistry and Pharmacy
Chair of Interface Research and Catalysis (Prof. Dr. Libuda)
Egerlandstr. 3
91058 Erlangen
- Phone number: +49 9131 85-67663
- Fax number: +49 9131 85-67662
- Email: olaf.brummel@fau.de
- Website: https://www.ecrc.fau.eu/libuda-group/group-members/dr-olaf-brummel-model-electrocatalysis/
Research Interests
The expertise of Dr. Olaf Brummel is centered around model electrocatalysis in energy conversion with a special focus on reaction mechanisms and kinetics at electrified solid/liquid interfaces. His group employs model systems with different levels of complexity including simple single crystalline surfaces, real electrocatalysts, and complex, well-defined nanostructured model electrocatalysts prepared by surface science methods. His group uses a variety of electrochemical in-situ methods for mechanistic studies with a special emphasis on electrochemical infrared spectroscopy. By studying the same reactions in ultra-high vacuum and electrochemical environment, he aims at bridging the gap between fundamental electrochemical surface science and applied electrochemistry.
| 1984 | born in Erlangen, Germany | |
| 2005-2012 | Studies of Chemistry at the Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg, Germany (grade: “very good”) | |
| 2012 | Diploma thesis at the FAU Erlangen-Nürnberg in the group of Prof. Dr. Dirk Guldi in cooperation with Siemens AG (grade: “very good”) | |
| 2012-2018 | PhD student at the FAU Erlangen Nürnberg in the group of Prof. Dr. Jörg Libuda | |
| 2015 | Research stay in the group of Prof. Dr. Marc Koper (Leiden University, Netherlands) | |
| 2016 | Research stay in the group of Prof. Dr. Jacek Lipkowski (University of Guelph, Canada) | |
| 2016 | Research stay in the group of Prof. Ulrike Diebold and Dr. Stejin Mertens (Technical University Vienna, Austria) | |
| 2016-2022 | Coordinator of the DFG Research Unit “funCOS – Functional Molecular Structures on Complex Oxide Surfaces FOR 1878” | |
| 2018 | PhD at the FAU Erlangen-Nürnberg, supervisor: Prof. Jörg Libuda (grade: “summa cum laude”, Gerda Weller award) | |
| since 2018 | Workgroup leader “Model Electrocatalysis” at the Department Chemistry and Pharmacy, FAU Erlangen-Nürnberg (Chair of Interface Research and Catalysis, head: Prof. Dr. Jörg Libuda) | |
| 2019 | Research stay in the group of Prof. Dr. Junfa Zhu (University of Science and Technology of China, China) | |
| since 2020 | Permanent position as an “Akademischer Rat” at the Department Chemistry and Pharmacy, FAU Erlangen-Nürnberg (Chair of Interface Research and Catalysis) | |
| 2020-2024 | Position: “Akademischer Rat” | |
| since 2024 | Position: “Akademischer Oberrat” | |
Publications and bibliometric information
[1] O. Brummel, D. Besold, T. Döpper, Y. Wu, S. Bochmann, F. Lazzari, F. Waidhas, U. Bauer, P. Bachmann, C. Papp, H.-P. Steinrück, A. Görling, J. Libuda, J. Bachmann, Energy Storage in Strained Organic Molecules: (Spectro)Electrochemical Characterization of Norbornadiene and Quadricyclane, ChemSusChem, 9 (2016) 1424-1432. https://doi.org/10.1002/cssc.201600127
[2] F. Faisal, C. Stumm, M. Bertram, F. Waidhas, Y. Lykhach, S. Cherevko, F. Xiang, M. Ammon, M. Vorokhta, B. Šmíd, T. Skála, N. Tsud, A. Neitzel, K. Beranová, K.C. Prince, S. Geiger, O. Kasian, T. Wähler, R. Schuster, M.A. Schneider, V. Matolín, K.J.J. Mayrhofer, O. Brummel, J. Libuda, Electrifying model catalysts for understanding electrocatalytic reactions in liquid electrolytes, Nature Materials, 17 (2018) 592-598. https://doi.org/10.1038/s41563-018-0088-3
[3] C. Schuschke, C. Hohner, M. Jevric, A. Ugleholdt Petersen, Z. Wang, M. Schwarz, M. Kettner, F. Waidhas, L. Fromm, C.J. Sumby, A. Görling, O. Brummel, K. Moth-Poulsen, J. Libuda, Solar energy storage at an atomically defined organic-oxide hybrid interface, Nature Communications, 10 (2019) 2384. https://www.nature.com/articles/s41467-019-10263-4
[4] G. Sievi, D. Geburtig, T. Skeledzic, A. Bösmann, P. Preuster, O. Brummel, F. Waidhas, M. Montero, P. Khanipour, I. Katsounaros, J. Libuda, K. Mayrhofer, P. Wasserscheid, Towards an Efficient Liquid Organic Hydrogen Carrier Fuel Cell Concept, Energy & Environmental Science, 12 (2019) 2305-2314. https://doi.org/10.1039/C9EE01324E
[5] F. Waidhas, S. Haschke, P. Khanipour, L. Fromm, A. Görling, J. Bachmann, I. Katsounaros, K.J.J. Mayrhofer, O. Brummel, J. Libuda, Secondary Alcohols as Rechargeable Electrofuels: Electrooxidation of Isopropyl Alcohol at Pt Electrodes, ACS Catalysis, 10 (2020) 6831-6842. https://doi.org/10.1021/acscatal.0c00818
[6] C. Stumm, M. Bertram, M. Kastenmeier, F.D. Speck, Z. Sun, J. Rodríguez‐Fernández, J.V. Lauritsen, K.J.J. Mayrhofer, S. Cherevko, O. Brummel, J. Libuda, Structural Dynamics of Ultrathin Cobalt Oxide Nanoislands under Potential Control, Advanced Functional Materials, 31 (2021) 2009923. https://doi.org/10.1002/adfm.202009923
[7] Z. Wang, P. Erhart, T. Li, Z.-Y. Zhang, D. Sampedro, Z. Hu, H.A. Wegner, O. Brummel, J. Libuda, M.B. Nielsen, K. Moth-Poulsen, Storing energy with molecular photoisomers, Joule, 5 (2021) 3116-3136. https://doi.org/10.1016/j.joule.2021.11.001
[8] O. Brummel, Y. Lykhach, M. Ralaiarisoa, M. Berasategui, M. Kastenmeier, L. Fusek, A. Simanenko, W. Gu, P.C.J. Clark, R. Yivlialin, M.J. Sear, J. Mysliveček, M. Favaro, D.E. Starr, J. Libuda, A Versatile Approach to Electrochemical In Situ Ambient-Pressure X-ray Photoelectron Spectroscopy: Application to a Complex Model Catalyst, The Journal of Physical Chemistry Letters, 13 (2022) 11015-11022. https://doi.org/10.1021/acs.jpclett.2c03004
[9] T. Yang, J. Yang, X. Deng, E. Franz, L. Fromm, N. Taccardi, Z. Liu, A. Görling, P. Wasserscheid, O. Brummel, J. Libuda, Modifying the Electrocatalytic Selectivity of Oxidation Reactions with Ionic Liquids, Angewandte Chemie International Edition, 61 (2022) e202202957. https://doi.org/10.1002/anie.202202957
[10] E. Franz, C. Stumm, F. Waidhas, M. Bertram, M. Jevric, J. Orrego-Hernández, H. Hölzel, K. Moth-Poulsen, O. Brummel, J. Libuda, Tunable Energy Release in a Reversible Molecular Solar Thermal System, ACS Catalysis, (2022) 13418-13425. https://doi.org/10.1021/acscatal.2c03043
Reindl, S.; Škvára, J.; Hauner, J.; Simanenko, A.; Kastenmeier, M.; Ronovský, M.; Skála, T.; Tsud, N.; Kettner, M.; Mehl, S.; Vorochta, M.; Šmíd, B.; Retzer, T.; Mysliveček, J.; Brummel, O.; Johánek, V.; Lykhach, Y.; Libuda, J., Mechanistic Study of Ethanol Decomposition on Co3O4(111) and Pd/Co3O4(111) Model Catalysts. ChemCatChem n/a (n/a), e202401587, https://dx.doi.org/https://doi.org/10.1002/cctc.202401587.
Simanenko, A.; Samal, P. K.; Hubsch, R.; Skvára, J.; Yang, J. T.; Kastenmeier, M.; Winkler, F.; Skála, T.; Tsud, N.; Mehl, S.; Myslivecek, J.; Brummel, O.; Lykhach, Y.; Libuda, J., Origin of the Low Overpotential for Isopropanol Oxidation on Pt-Ru Electrocatalysts. Acs Energy Letters 2024, 9 (10), 4875-4882, https://dx.doi.org/10.1021/acsenergylett.4c01987.
Zhou, S. Y.; Rehm, V.; Afify, H. A.; Han, Y. F.; Korczak, J.; Szczerbakow, A.; Story, T.; Peng, Z. J.; These, A.; Barabash, A.; Osvet, A.; Brabec, C. J.; Goetz, K.; Unruh, T.; Hilpert, F.; Brummel, O.; Libuda, J.; Heiss, W., Squeezing the Threshold of Metal-Halide Perovskite Micro-Crystal Lasers Grown by Solution Epitaxy. Adv. Funct. Mater. 2024, https://dx.doi.org/10.1002/adfm.202404700.
Simanenko, A.; Samal, P. K.; Hubsch, R.; Skvára, J.; Yang, J. T.; Kastenmeier, M.; Winkler, F.; Skála, T.; Tsud, N.; Mehl, S.; Myslivecek, J.; Brummel, O.; Lykhach, Y.; Libuda, J., Origin of the Low Overpotential for Isopropanol Oxidation on Pt-Ru Electrocatalysts. Acs Energy Letters 2024, https://dx.doi.org/10.1021/acsenergylett.4c01987.
Yang, J.; Haßfurther, F.; Hilpert, F.; Hussain, Z.; Yang, T.; Taccardi, N.; Wasserscheid, P.; Brummel, O.; Libuda, J., C-C bond cleavage in the electrooxidation of 2,3-butanediol controlled by an ionic liquid modifier. J. Catal. 2024, 435, 115541, https://dx.doi.org/https://doi.org/10.1016/j.jcat.2024.115541.
Bilal, D; Zhang, G.R; Baumunk, A. F.; Yang, J. T; Brummel, O; Darge, P; Dworschak, D; Mayrhofer, K. J. J.; Libuda, J; Zhou, X; Wu, M; Spiecker, E; Ledendecker, M; Etzold, B. J. M. Increasing Activity of Trimetallic Oxygen Reduction PtNiMo/C Catalysts Through Initial Conditioning, Chemelectrochem,2024, 2196-0216, http://dx.doi.org/10.1002/celc.202400070.
Eschenbacher, R; Hemauer, F; Franz, E; Leng, AD; Schwaab, V; Waleska-Wellnhofer, NJ; Freiberger, EM; Fromm, L; Xu, T; Görling, A; Hirsch, A; Steinrueck, HP; Papp, C; Brummel, O; Libuda, J, Au-Catalyzed Energy Release in a Molecular Solar Thermal (MOST) System: A Combined Liquid-Phase and Surface Science Study, ChemPhotoChem, 2024, http://dx.doi.org/10.1002/cptc.202300155
Yang, J. T.; Hilpert, F.; Qiu, Y. S.; Franz, E.; Briega-Martos, V.; Cherevko, S.; Mayrhofer, K.; Brummel, O.; Libuda, J., Interactions of the Ionic Liquid C2C1Im DCA with Au(111) Electrodes: Interplay between Ion Adsorption, Electrode Structure, and Stability. J. Phys. Chem. C 2024, 128 (7), 2834-2843, https://dx.doi.org/10.1021/acs.jpcc.3c07122.
Fusek, L.; Samal, P. K.; Kerestes, J.; Khalakhan, I.; Johánek, V.; Lykhach, Y.; Libuda, J.; Brummel, O.; Myslivecek, J., A model study of ceria-Pt electrocatalysts: stability, redox properties and hydrogen intercalation. Phys. Chem. Chem. Phys. 2024, 26 (3), https://dx.doi.org/10.1039/d3cp03831a.
Fusek, L.; Briega-Martos, V.; Minichová, M.; Fromm, L.; Franz, E.; Yang, J. T.; Görling, A.; Mayrhofer, K. J. J.; Wasserscheid, P.; Cherevko, S.; Brummel, O.; Libuda, J., Toward High-Energy-Density Fuels for Direct Liquid Organic Hydrogen Carrier Fuel Cells: Electrooxidation of 1-Cyclohexylethanol. J. Phys. Chem. Lett. 2024, 15 (9), 2529-2536, https://dx.doi.org/10.1021/acs.jpclett.3c03331.
Fusek, L.; Camellone, M. F.; Ronovsky, M.; Kastenmeier, M.; Skála, T.; Samal, P. K.; Tsud, N.; Mehl, S.; Skvára, J.; Dolák, T.; Uvarov, V.; Setvin, M.; Johánek, V.; Fabris, S.; Brummel, O.; Libuda, J.; Myslivecek, J.; Piccinin, S.; Lykhach, Y., Atomistic picture of electronic metal support interaction and the role of water. J. Mater. Chem. A 2024, https://dx.doi.org/10.1039/d3ta06595b.
Eschenbacher, R.; Hemauer, F.; Franz, E.; Leng, A. D.; Schwaab, V.; Waleska-Wellnhofer, N. J.; Freiberger, E. M.; Fromm, L.; Xu, T.; Görling, A.; Hirsch, A.; Steinrueck, H. P.; Papp, C.; Brummel, O.; Libuda, J., Au-Catalyzed Energy Release in a Molecular Solar Thermal (MOST) System: A Combined Liquid-Phase and Surface Science Study. Chemphotochem 2023, https://dx.doi.org/10.1002/cptc.202300155.
Brummel, O.; Jacobse, L.; Simanenko, A.; Deng, X.; Geile, S.; Gutowski, O.; Vonk, V.; Lykhach, Y.; Stierle, A.; Libuda, J., Chemical and Structural In-Situ Characterization of Model Electrocatalysts by Combined Infrared Spectroscopy and Surface X-ray Diffraction. J. Phys. Chem. Lett. 2023, 14 (39), 8820-8827, https://dx.doi.org/10.1021/acs.jpclett.3c01777.
Hemauer, F.; Krappmann, D.; Schwaab, V.; Hussain, Z.; Freiberger, E. M.; Waleska-Wellnhofer, N. J.; Franz, E.; Hampel, F.; Brummel, O.; Libuda, J.; Hirsch, A.; Steinrück, H. P.; Papp, C., Surface science and liquid phase investigations of oxanorbornadiene/oxaquadricyclane ester derivatives as molecular solar thermal energy storage systems on Pt(111). J. Chem. Phys. 2023, 159 (7), https://dx.doi.org/10.1063/5.0158124.
Kastenmeier, M.; Franz, E.; Waidhas, F.; Yang, T.; Taccardi, N.; Wasserscheid, P.; Brummel, O.; Libuda, J., Competition of Acetone Reduction and Hydrogen Evolution on Pt Single Crystal Electrodes in the Absence and Presence of the Ionic Liquid C2C1Im OTf. J. Phys. Chem. C 2023, 127 (47), 22975-22983, https://dx.doi.org/10.1021/acs.jpcc.3c06260.
Mangoufis-Giasin, I.; Fusek, L.; Yang, T.; Khanipour, P.; Brummel, O.; Libuda, J.; Mayrhofer, K. J. J.; Calle-Vallejo, F.; Katsounaros, I., Activity Trends for the Selective Oxidation of 2-Propanol to Acetone on Noble Metal Electrodes in Alkaline Electrolyte. ACS Catal. 2023, 13 (22), 14562-14569, https://dx.doi.org/10.1021/acscatal.3c03423.
Danisman, B.; Zhang, G. R.; Baumunk, A. F.; Yang, J. T.; Brummel, O.; Darge, P.; Mayrhoferhttps, K. J. J.; Libuda, J.; Ledendecker, M.; Etzold, B. J. M., Strong Activity Changes Observable during the First Pretreatment Cycles of Trimetallic PtNiMo/C Catalysts. Chemelectrochem 2023, 10 (16), https://dx.doi.org/10.1002/celc.202300109.
Hemauer, F.; Krappmann, D.; Schwaab, V.; Hussain, Z.; Freiberger, E. M.; Waleska-Wellnhofer, N. J.; Franz, E.; Hampel, F.; Brummel, O.; Libuda, J.; Hirsch, A.; Steinrück, H. P.; Papp, C., Surface science and liquid phase investigations of oxanorbornadiene/oxaquadricyclane ester derivatives as molecular solar thermal energy storage systems on Pt(111). J. Chem. Phys. 2023, 159 (7), https://dx.doi.org/10.1063/5.0158124.
Kastenmeier, M.; Fusek, L.; Mohamed, F.; Schuschke, C.; Ronovsky, M.; Camellone, M. F.; Tsud, N.; Johanek, V.; Fabris, S.; Piccinin, S.; Myslivec, J.; Brummel, O.; Lykhach, Y.; Skala, T.; Libuda, J., Pd/Co3O4(111) Interface Formation. J. Phys. Chem. C 2023, 127 (12), 6034-6044, https://dx.doi.org/10.1021/acs.jpcc.3c00261.
Hilpert, F.; Liao, P. C.; Franz, E.; Koch, V. M.; Fromm, L.; Topraksal, E.; Gorling, A.; Smith, A. S.; Barr, M. K. S.; Bachmann, J.; Brummel, O.; Libuda, J., Mechanistic Insight into Solution-Based Atomic Layer Deposition of CuSCN Provided by In Situ and Ex Situ Methods. ACS Appl. Mater. Interfaces 2023, 15 (15), 19536-19544, https://dx.doi.org/10.1021/acsami.2c16943.
Franz, E.; Jung, J. N.; Kunz, A.; Wegner, H. A.; Brummel, O.; Mollenhauer, D.; Libuda, J., How Adsorption Affects the Energy Release in an Azothiophene- Based Molecular Solar-Thermal System. J. Phys. Chem. Lett. 2023, https://dx.doi.org/10.1021/acs.jpclett.2c03732.
Yang, T.; Yang, J.; Deng, X.; Franz, E.; Fromm, L.; Taccardi, N.; Liu, Z.; Görling, A.; Wasserscheid, P.; Brummel, O.; Libuda, J., Modifying the Electrocatalytic Selectivity of Oxidation Reactions with Ionic Liquids. Angew. Chem. Int. Ed. 2022, 61 (29), https://dx.doi.org/10.1002/anie.202202957.
Wiegmann, T.; Pacheco, I.; Reikowski, F.; Stettner, J.; Qiu, C.; Bouvier, M.; Bertram, M.; Faisal, F.; Brummel, O.; Libuda, J.; Drnec, J.; Allongue, P.; Maroun, F.; Magnussen, O. M., Operando Identification of the Reversible Skin Layer on Co3O4as a Three-Dimensional Reaction Zone for Oxygen Evolution. ACS Catal. 2022, 12 (6), 3256-3268, https://dx.doi.org/10.1021/acscatal.1c05169.
Lykhach, Y.; Johánek, V.; Neitzel, A.; Skála, T.; Tsud, N.; Beranová, K.; Mysliveček, J.; Brummel, O.; Libuda, J., Redox-mediated C-C bond scission in alcohols adsorbed on CeO2-xthin films. J Phys Condens Matter 2022, 34 (19), https://dx.doi.org/10.1088/1361-648X/ac5138.
Kräuter, J.; Franz, E.; Waidhas, F.; Brummel, O.; Jörg, L.; Al-Shamery, K., The role of defects in the photoconversion of 2-propanol on rutile titania: Operando spectroscopy combined with elementary studies. J. Catal. 2022, 406, 134-144, https://dx.doi.org/10.1016/j.jcat.2021.12.025.
Kastenmeier, M.; Fusek, L.; Deng, X.; Skála, T.; Mehl, S.; Tsud, N.; Grau, S.; Stumm, C.; Uvarov, V.; Johánek, V.; Libuda, J.; Lykhach, Y.; Mysliveček, J.; Brummel, O., Particle Size and Shape Effects in Electrochemical Environments: Pd Particles Supported on Ordered Co3O4(111) and Highly Oriented Pyrolytic Graphite. J. Phys. Chem. C 2022, 126 (30), 12870-12881, https://dx.doi.org/10.1021/acs.jpcc.2c03109.
Jacobse, L.; Schuster, R.; Pfrommer, J.; Deng, X.; Dolling, S.; Weber, T.; Gutowski, O.; Dippel, A. C.; Brummel, O.; Lykhach, Y.; Over, H.; Libuda, J.; Vonk, V.; Stierle, A., A combined rotating disk electrode-surface x-ray diffraction setup for surface structure characterization in electrocatalysis. Rev. Sci. Instrum. 2022, 93 (6), https://dx.doi.org/10.1063/5.0087864.
Fusek, L.; Kastenmeier, M.; Franz, E.; Fromm, L.; Görling, A.; Brummel, O.; Libuda, J., Anchoring of porphyrins on atomically defined cobalt oxide: In-situ infrared spectroscopy at the electrified solid/liquid interface. Surf. Sci. 2022, 718, https://dx.doi.org/10.1016/j.susc.2021.122013.
Franz, E.; Stumm, C.; Waidhas, F.; Bertram, M.; Jevric, M.; Orrego-Hernández, J.; Hölzel, H.; Moth-Poulsen, K.; Brummel, O.; Libuda, J., Tunable Energy Release in a Reversible Molecular Solar Thermal System. ACS Catal. 2022, 12 (21), 13418-13425, https://dx.doi.org/10.1021/acscatal.2c03043.
Franz, E.; Kunz, A.; Oberhof, N.; Heindl, A. H.; Bertram, M.; Fusek, L.; Taccardi, N.; Wasserscheid, P.; Dreuw, A.; Wegner, H. A.; Brummel, O.; Libuda, J., Electrochemically Triggered Energy Release from an Azothiophene-Based Molecular Solar Thermal System. ChemSusChem 2022, 15 (18), https://dx.doi.org/10.1002/cssc.202200958.
Franz, E.; Krappmann, D.; Fromm, L.; Luchs, T.; Görling, A.; Hirsch, A.; Brummel, O.; Libuda, J., Electrocatalytic Energy Release of Norbornadiene-Based Molecular Solar Thermal Systems: Tuning the Electrochemical Stability by Molecular Design. ChemSusChem 2022, 15 (24), https://dx.doi.org/10.1002/cssc.202201483.
Eschenbacher, R.; Xu, T.; Franz, E.; Löw, R.; Moje, T.; Fromm, L.; Görling, A.; Brummel, O.; Herges, R.; Libuda, J., Triggering the energy release in molecular solar thermal systems: Norbornadiene-functionalized trioxatriangulen on Au(111). Nano Energy 2022, 95, https://dx.doi.org/10.1016/j.nanoen.2022.107007.
Brummel, O.; Lykhach, Y.; Ralaiarisoa, M.; Berasategui, M.; Kastenmeier, M.; Fusek, L.; Simanenko, A.; Gu, W.; Clark, P. C. J.; Yivlialin, R.; Sear, M. J.; Mysliveček, J.; Favaro, M.; Starr, D. E.; Libuda, J., A Versatile Approach to Electrochemical in Situ Ambient-Pressure X-ray Photoelectron Spectroscopy: Application to a Complex Model Catalyst. J. Phys. Chem. Lett. 2022, 13 (47), 11015-11022, https://dx.doi.org/10.1021/acs.jpclett.2c03004.
Yang, T.; Kastenmeier, M.; Ronovský, M.; Fusek, L.; Skála, T.; Waidhas, F.; Bertram, M.; Tsud, N.; Matvija, P.; Prince, K. C.; Matolín, V.; Liu, Z.; Johánek, V.; Mysliveček, J.; Lykhach, Y.; Brummel, O.; Libuda, J., Selective electrooxidation of 2-propanol on Pt nanoparticles supported on Co3O4: An in-situ study on atomically defined model systems. J Phys D 2021, 54 (16), https://dx.doi.org/10.1088/1361-6463/abd9ea.
Wang, Z.; Erhart, P.; Li, T.; Zhang, Z. Y.; Sampedro, D.; Hu, Z.; Wegner, H. A.; Brummel, O.; Libuda, J.; Nielsen, M. B.; Moth-Poulsen, K., Storing energy with molecular photoisomers. Joule 2021, 5 (12), 3116-3136, https://dx.doi.org/10.1016/j.joule.2021.11.001.
Stumm, C.; Kastenmeier, M.; Waidhas, F.; Bertram, M.; Sandbeck, D. J. S.; Bochmann, S.; Mayrhofer, K. J. J.; Bachmann, J.; Cherevko, S.; Brummel, O.; Libuda, J., Model electrocatalysts for the oxidation of rechargeable electrofuels – carbon supported Pt nanoparticles prepared in UHV. Electrochim. Acta 2021, 389, https://dx.doi.org/10.1016/j.electacta.2021.138716.
Stumm, C.; Grau, S.; Speck, F. D.; Hilpert, F.; Briega-Martos, V.; Mayrhofer, K.; Cherevko, S.; Brummel, O.; Libuda, J., Reduction of Oxide Layers on Au(111): The Interplay between Reduction Rate, Dissolution, and Restructuring. J. Phys. Chem. C 2021, 125 (41), 22698-22704, https://dx.doi.org/10.1021/acs.jpcc.1c03969.
Stumm, C.; Bertram, M.; Kastenmeier, M.; Speck, F. D.; Sun, Z.; Rodríguez-Fernández, J.; Lauritsen, J. V.; Mayrhofer, K. J. J.; Cherevko, S.; Brummel, O.; Libuda, J., Structural Dynamics of Ultrathin Cobalt Oxide Nanoislands under Potential Control. Adv. Funct. Mater. 2021, 31 (13), https://dx.doi.org/10.1002/adfm.202009923.
Schuschke, C.; Fusek, L.; Uvarov, V.; Vorokhta, M.; Šmíd, B.; Johánek, V.; Lykhach, Y.; Libuda, J.; Mysliveček, J.; Brummel, O., Stability of the Pd/Co3O4(111) Model Catalysts in Oxidizing and Humid Environments. J. Phys. Chem. C 2021, 125 (5), 2907-2917, https://dx.doi.org/10.1021/acs.jpcc.0c08915.
Kräuter, J.; Mohrhusen, L.; Waidhas, F.; Brummel, O.; Libuda, J.; Al-Shamery, K., Photoconversion of 2-Propanol on rutile titania: A combined liquid-phase and surface science study. J. Phys. Chem. C 2021, 125 (6), 3355-3367, https://dx.doi.org/10.1021/acs.jpcc.0c10734.
Hohner, C.; Ronovský, M.; Brummel, O.; Skála, T.; Šmíd, B.; Tsud, N.; Vorokhta, M.; Prince, K. C.; Mysliveček, J.; Johánek, V.; Lykhach, Y.; Libuda, J., Reactive interaction of isopropanol with Co3O4(1 1 1) and Pt/Co3O4(1 1 1) model catalysts. J. Catal. 2021, 398, 171-184, https://dx.doi.org/10.1016/j.jcat.2021.04.005.
Waidhas, F.; Jevric, M.; Bosch, M.; Yang, T.; Franz, E.; Liu, Z.; Bachmann, J.; Moth-Poulsen, K.; Brummel, O.; Libuda, J., Electrochemically controlled energy release from a norbornadiene-based solar thermal fuel: Increasing the reversibility to 99.8% using HOPG as the electrode material. J. Mater. Chem. A 2020, 8 (31), 15658-15664, https://dx.doi.org/10.1039/d0ta00377h.
Waidhas, F.; Haschke, S.; Khanipour, P.; Fromm, L.; Görling, A.; Bachmann, J.; Katsounaros, I.; Mayrhofer, K. J. J.; Brummel, O.; Libuda, J., Secondary Alcohols as Rechargeable Electrofuels: Electrooxidation of Isopropyl Alcohol at Pt Electrodes. ACS Catal. 2020, 10 (12), 6831-6842, https://dx.doi.org/10.1021/acscatal.0c00818.
Brummel, O.; Libuda, J., Electrifying Oxide Model Catalysis: Complex Electrodes Based on Atomically-Defined Oxide Films. Catal. Lett. 2020, 150 (6), 1546-1560, https://dx.doi.org/10.1007/s10562-019-03078-x.
Brummel, O.; Bertram, M.; Prössl, C.; Ronovský, M.; Knöppel, J.; Matvija, P.; Fusek, L.; Skála, T.; Tsud, N.; Kastenmeier, M.; Matolín, V.; Mayrhofer, K. J. J.; Johánek, V.; Mysliveček, J.; Cherevko, S.; Lykhach, Y.; Libuda, J., Cobalt oxide-supported pt electrocatalysts: Intimate correlation between particle size, electronic metal-support interaction and stability. J. Phys. Chem. Lett. 2020, 11 (19), 8365-8371, https://dx.doi.org/10.1021/acs.jpclett.0c02233.
Bertram, M.; Waidhas, F.; Jevric, M.; Fromm, L.; Schuschke, C.; Kastenmeier, M.; Görling, A.; Moth-Poulsen, K.; Brummel, O.; Libuda, J., Norbornadiene photoswitches anchored to well-defined oxide surfaces: From ultrahigh vacuum into the liquid and the electrochemical environment. J. Chem. Phys. 2020, 152 (4), https://dx.doi.org/10.1063/1.5137897.
Waidhas, F.; Jevric, M.; Fromm, L.; Bertram, M.; Görling, A.; Moth-Poulsen, K.; Brummel, O.; Libuda, J., Electrochemically controlled energy storage in a norbornadiene-based solar fuel with 99% reversibility. Nano Energy 2019, 63, https://dx.doi.org/10.1016/j.nanoen.2019.103872.
Sievi, G.; Geburtig, D.; Skeledzic, T.; Bösmann, A.; Preuster, P.; Brummel, O.; Waidhas, F.; Montero, M. A.; Khanipour, P.; Katsounaros, I.; Libuda, J.; Mayrhofer, K. J. J.; Wasserscheid, P., Towards an efficient liquid organic hydrogen carrier fuel cell concept. Energy and Environmental Science 2019, 12 (7), 2305-2314, https://dx.doi.org/10.1039/c9ee01324e.
Schwarz, M.; Schuschke, C.; Silva, T. N.; Mohr, S.; Waidhas, F.; Brummel, O.; Libuda, J., A simple high-intensity UV-photon source for photochemical studies in UHV: Application to the photoconversion of norbornadiene to quadricyclane. Rev. Sci. Instrum. 2019, 90 (2), https://dx.doi.org/10.1063/1.5079320.
Schuschke, C.; Hohner, C.; Jevric, M.; Ugleholdt Petersen, A.; Wang, Z.; Schwarz, M.; Kettner, M.; Waidhas, F.; Fromm, L.; Sumby, C. J.; Görling, A.; Brummel, O.; Moth-Poulsen, K.; Libuda, J., Solar energy storage at an atomically defined organic-oxide hybrid interface. Nature Communications 2019, 10 (1), https://dx.doi.org/10.1038/s41467-019-10263-4.
Sandbeck, D. J. S.; Brummel, O.; Mayrhofer, K. J. J.; Libuda, J.; Katsounaros, I.; Cherevko, S., Dissolution of Platinum Single Crystals in Acidic Medium. ChemPhysChem 2019, 20 (22), 2997-3003, https://dx.doi.org/10.1002/cphc.201900866.
Lykhach, Y.; Piccinin, S.; Skála, T.; Bertram, M.; Tsud, N.; Brummel, O.; Farnesi Camellone, M.; Beranová, K.; Neitzel, A.; Fabris, S.; Prince, K. C.; Matolín, V.; Libuda, J., Quantitative Analysis of the Oxidation State of Cobalt Oxides by Resonant Photoemission Spectroscopy. J. Phys. Chem. Lett. 2019, 10 (20), 6129-6136, https://dx.doi.org/10.1021/acs.jpclett.9b02398.
Brummel, O.; Lykhach, Y.; Vorokhta, M.; Šmíd, B.; Stumm, C.; Faisal, F.; Skála, T.; Tsud, N.; Neitzel, A.; Beranová, K.; Prince, K. C.; Matolín, V.; Libuda, J., Redox Behavior of Pt/Co 3 O 4 (111) Model Electrocatalyst Studied by X-ray Photoelectron Spectroscopy Coupled with an Electrochemical Cell. J. Phys. Chem. C 2019, 123 (14), 8746-8758, https://dx.doi.org/10.1021/acs.jpcc.8b08890.
Bertram, M.; Schuschke, C.; Waidhas, F.; Schwarz, M.; Hohner, C.; Montero, M. A.; Brummel, O.; Libuda, J., Molecular anchoring to oxide surfaces in ultrahigh vacuum and in aqueous electrolytes: Phosphonic acids on atomically-defined cobalt oxide. Phys. Chem. Chem. Phys. 2019, 21 (42), 23364-23374, https://dx.doi.org/10.1039/c9cp03779a.
Lykhach, Y.; Brummel, O.; Bruix, A.; Fabris, S.; Matolínová, I.; Matolín, V.; Neyman, K. M.; Libuda, J., Pt-CeO2 catalysts for fuel cell applications: From surface science to electrochemistry. In Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry, Elsevier: 2018; pp 189-201.
Khalakhan, I.; Waidhas, F.; Brummel, O.; Vorokhta, M.; Kúš, P.; Yakovlev, Y. V.; Bertram, M.; Dopita, M.; Matolínová, I.; Libuda, J.; Matolín, V., Nanoscale Morphological and Structural Transformations of PtCu Alloy Electrocatalysts during Potentiodynamic Cycling. J. Phys. Chem. C 2018, 122 (38), 21974-21982, https://dx.doi.org/10.1021/acs.jpcc.8b06840.
Faisal, F.; Stumm, C.; Bertram, M.; Waidhas, F.; Lykhach, Y.; Cherevko, S.; Xiang, F.; Ammon, M.; Vorokhta, M.; Šmíd, B.; Skála, T.; Tsud, N.; Neitzel, A.; Beranová, K.; Prince, K. C.; Geiger, S.; Kasian, O.; Wähler, T.; Schuster, R.; Schneider, M. A.; Matolín, V.; Mayrhofer, K. J. J.; Brummel, O.; Libuda, J., Electrifying model catalysts for understanding electrocatalytic reactions in liquid electrolytes. Nature Materials 2018, 17 (7), 592-598, https://dx.doi.org/10.1038/s41563-018-0088-3.
Faisal, F.; Stumm, C.; Bertram, M.; Wähler, T.; Schuster, R.; Xiang, F.; Lytken, O.; Katsounaros, I.; Mayrhofer, K. J. J.; Schneider, M. A.; Brummel, O.; Libuda, J., Atomically-defined model catalysts in ultrahigh vacuum and in liquid electrolytes: Particle size-dependent CO adsorption on Pt nanoparticles on ordered Co3O4(111) films. Phys. Chem. Chem. Phys. 2018, 20 (36), 23702-23716, https://dx.doi.org/10.1039/c8cp03770a.
Faisal, F.; Bertram, M.; Stumm, C.; Waidhas, F.; Brummel, O.; Libuda, J., Preparation of complex model electrocatalysts in ultra-high vacuum and transfer into the electrolyte for electrochemical IR spectroscopy and other techniques. Rev. Sci. Instrum. 2018, 89 (11), https://dx.doi.org/10.1063/1.5047056.
Faisal, F.; Bertram, M.; Stumm, C.; Wähler, T.; Schuster, R.; Lykhach, Y.; Neitzel, A.; Skála, T.; Tsud, N.; Beranová, K.; Prince, K. C.; Matolín, V.; Brummel, O.; Libuda, J., Electrocatalysis with Atomically Defined Model Systems: Metal-Support Interactions between Pt Nanoparticles and Co3O4(111) under Ultrahigh Vacuum and in Liquid Electrolytes. J. Phys. Chem. C 2018, 122 (36), 20787-20799, https://dx.doi.org/10.1021/acs.jpcc.8b05594.
Faisal, F.; Bertram, M.; Stumm, C.; Cherevko, S.; Geiger, S.; Kasian, O.; Lykhach, Y.; Lytken, O.; Mayrhofer, K. J. J.; Brummel, O.; Libuda, J., Atomically Defined Co3O4(111) Thin Films Prepared in Ultrahigh Vacuum: Stability under Electrochemical Conditions. J. Phys. Chem. C 2018, 122 (13), 7236-7248, https://dx.doi.org/10.1021/acs.jpcc.8b00558.
Brummel, O.; Waidhas, F.; Khalakhan, I.; Vorokhta, M.; Dubau, M.; Kovács, G.; Aleksandrov, H. A.; Neyman, K. M.; Matolín, V.; Libuda, J., Structural transformations and adsorption properties of PtNi nanoalloy thin film electrocatalysts prepared by magnetron co-sputtering. Electrochim. Acta 2017, 251, 427-441, https://dx.doi.org/10.1016/j.electacta.2017.08.062.
Brummel, O.; Waidhas, F.; Bauer, U.; Wu, Y.; Bochmann, S.; Steinrück, H. P.; Papp, C.; Bachmann, J.; Libuda, J., Photochemical Energy Storage and Electrochemically Triggered Energy Release in the Norbornadiene-Quadricyclane System: UV Photochemistry and IR Spectroelectrochemistry in a Combined Experiment. J. Phys. Chem. Lett. 2017, 8 (13), 2819-2825, https://dx.doi.org/10.1021/acs.jpclett.7b00995.
Bauer, U.; Mohr, S.; Döpper, T.; Bachmann, P.; Späth, F.; Düll, F.; Schwarz, M.; Brummel, O.; Fromm, L.; Pinkert, U.; Görling, A.; Hirsch, A.; Bachmann, J.; Steinrück, H. P.; Libuda, J.; Papp, C., Catalytically Triggered Energy Release from Strained Organic Molecules: The Surface Chemistry of Quadricyclane and Norbornadiene on Pt(111). Chem. Eur. J. 2017, 23 (7), 1613-1622, https://dx.doi.org/10.1002/chem.201604443.
Mehl, S.; Bauer, T.; Brummel, O.; Pohako-Esko, K.; Schulz, P.; Wasserscheid, P.; Libuda, J., Ionic-Liquid-Modified Hybrid Materials Prepared by Physical Vapor Codeposition: Cobalt and Cobalt Oxide Nanoparticles in [C1C2Im][OTf] Monitored by in Situ IR Spectroscopy. Langmuir 2016, 32 (34), 8613-8622, https://dx.doi.org/10.1021/acs.langmuir.6b02303.
Brummel, O.; Waidhas, F.; Faisal, F.; Fiala, R.; Vorokhta, M.; Khalakhan, I.; Dubau, M.; Figueroba, A.; Kovács, G.; Aleksandrov, H. A.; Vayssilov, G. N.; Kozlov, S. M.; Neyman, K. M.; Matolín, V.; Libuda, J., Stabilization of Small Platinum Nanoparticles on Pt-CeO2 Thin Film Electrocatalysts during Methanol Oxidation. J. Phys. Chem. C 2016, 120 (35), 19723-19736, https://dx.doi.org/10.1021/acs.jpcc.6b05962.
Brummel, O.; Faisal, F.; Bauer, T.; Pohako-Esko, K.; Wasserscheid, P.; Libuda, J., Ionic Liquid-Modified Electrocatalysts: The Interaction of [C1C2Im][OTf] with Pt(1 1 1) and its Influence on Methanol Oxidation Studied by Electrochemical IR Spectroscopy. Electrochim. Acta 2016, 188, 825-836, https://dx.doi.org/10.1016/j.electacta.2015.12.006.
Brummel, O.; Besold, D.; Döpper, T.; Wu, Y.; Bochmann, S.; Lazzari, F.; Waidhas, F.; Bauer, U.; Bachmann, P.; Papp, C.; Steinrück, H. P.; Görling, A.; Libuda, J.; Bachmann, J., Back Cover: Energy Storage in Strained Organic Molecules: (Spectro)Electrochemical Characterization of Norbornadiene and Quadricyclane (ChemSusChem 12/2016). ChemSusChem 2016, 9 (12), 1513, https://dx.doi.org/10.1002/cssc.201600765.
Brummel, O.; Besold, D.; Döpper, T.; Wu, Y.; Bochmann, S.; Lazzari, F.; Waidhas, F.; Bauer, U.; Bachmann, P.; Papp, C.; Steinrück, H. P.; Görling, A.; Libuda, J.; Bachmann, J., Energy Storage in Strained Organic Molecules: (Spectro)Electrochemical Characterization of Norbornadiene and Quadricyclane. ChemSusChem 2016, 9 (12), 1424-1432, https://dx.doi.org/10.1002/cssc.201600127.
Bauer, T.; Mehl, S.; Brummel, O.; Pohako-Esko, K.; Wasserscheid, P.; Libuda, J., Ligand Effects at Ionic Liquid-Modified Interfaces: Coadsorption of [C2C1Im][OTf] and CO on Pd(111). J. Phys. Chem. C 2016, 120 (8), 4453-4465, https://dx.doi.org/10.1021/acs.jpcc.6b00351.
Mehl, S.; Toghan, A.; Bauer, T.; Brummel, O.; Taccardi, N.; Wasserscheid, P.; Libuda, J., Pd nanoparticle formation in ionic liquid thin films monitored by in situ vibrational spectroscopy. Langmuir 2015, 31 (44), 12126-12139, https://dx.doi.org/10.1021/acs.langmuir.5b03386.
Mehl, S.; Ferstl, P.; Schuler, M.; Toghan, A.; Brummel, O.; Hammer, L.; Schneider, M. A.; Libuda, J., Thermal evolution of cobalt deposits on Co3O4(111): Atomically dispersed cobalt, two-dimensional CoO islands, and metallic Co nanoparticles. Phys. Chem. Chem. Phys. 2015, 17 (36), 23538-23546, https://dx.doi.org/10.1039/c5cp03922c.
Ferstl, P.; Mehl, S.; Arman, M. A.; Schuler, M.; Toghan, A.; Laszlo, B.; Lykhach, Y.; Brummel, O.; Lundgren, E.; Knudsen, J.; Hammer, L.; Schneider, M. A.; Libuda, J., Adsorption and Activation of CO on Co3O4(111) Thin Films. J. Phys. Chem. C 2015, 119 (29), 16688-16699, https://dx.doi.org/10.1021/acs.jpcc.5b04145.
Model Electrocatalysis Team (May 2021): Felix Hilpert, Evanie Franz, Dr. Olaf Brummel,
Corinna Stumm, Maximilian Kastenmeier (from left to right)