The work of the group is concentrated on the synthesis and characterization of inorganic materials with an application focus in heterogeneous catalysis. Especially important are high surface area materials with controlled porosity and nanostructured catalysts. Reactions studied include model reactions, such as CO oxidation, and energy relevant conversions, i.e. methane activation, biomass conversion, ammonia decomposition and catalyzed hydrogen storage. This research is supported by studies into the fundamental processes governing solids formation.

D. Gu, H. Bongard, Y. Meng, O. Terasaki, F. Zhang, Y. Deng, Z. Wu, D. Feng, Y. Fang, B. Tu, F. Schüth, D.Y. Zhao: Growth of Single-Crystal Mesoporous Carbons with Im3m Symmetry Chem.Mater., submitted
R. Rinaldi, P. Engel, J. Büchs, A.C. Spiess, F. Schüth: An Integrated Catalytic Approach to the Complete Hydrolysis of Cellulose to Fermentable Sugars ChemSusChem, published online 26.08.2010
A. Pommerin, C. Weidenthaler, F. Schüth, M. Felderhoff: Direct synthesis of pure complex aluminum hydrides by cryomilling Scripta Materialia 62, 576-578 (2010)
W.Q. Zheng, J. Zhang, B. Zhu, R. Blume, Y.L. Zhang, K. Schlichte, R. Schlögl, F. Schüth, D.S. Su: Structure-Function Correlations for Ru/CNT in the Catalytic Decomposition of Ammonia ChemSusChem 3, 226-230 (2010)
R. Rinaldi, N. Meine, J. vom Stein, R. Palkovits, F. Schüth: Which controls the depolymerization of cellulose in ionic liquids: the solid acid catalyst or cellulose? ChemSusChem 3, 266-276 (2010)
F. Schüth: Poröse Materialien im Überblick Chemie-Ingenieur-Technik 82, 769-777 (2010)
R. Palkovits, D. Arlt, H. Stepowska, F. Schüth: Cross-metathesis as a versatile tool for reversible surface modifications Microporous Mesoporous Mater. 132, 319-327 (2010)
M. Feyen, C. Weidenthaler, F. Schüth, A.-H. Lu: Synthesis of structurally stable colloidal composites as magnetically recyclable acid catalysts Chem.Mater. 22, 2955-2961 (2010)
Y. Liu, Y. Meng, C.-J. Jia, C. Weidenthaler, A.-H. Lu, M. Comotti, B. Spliethoff, W. Schmidt, F. Schüth: Calcium fluoride as support for Au nanoparticles in CO oxidation: Influence of preparation methods ChemCatChem, submitted
Y. Liu, C.J. Jia, J. Yamasaki, O. Terasaki, F. Schüth: Highly Active Iron Oxide Supported Gold Catalysts for CO Oxidation: How Small Must the Gold Nanoparticles Be? Angew.Chem.Int.Ed., 122, 5907 –5911 (2010)
M. Feyen, C. Weidenthaler, A.H. Lu, F. Schüth Regioselectively controlled synthesis of colloidal mushroom nanostructures and their hollow derivatives J.Am.Chem.Soc. 132, 6791-6799 (2010)
W. Schmidt, P. Bussian, M. Lindén, H. Amenitsch, P. Agren, M. Tiemann, F. Schüth: Accessing ultrashort reaction times in particle formation with SAXS experiments: ZnS precipitation on the microsecond time scale J.Am.Chem.Soc. 132, 6822-6826 (2010)
A.-H. Lu, W.-C. Li, G.-P. Hao, B. Spliethoff, H.-J. Bongard, B.B. Schaack, F. Schüth: Easy Synthesis of Hollow Polymer, Carbon and Graphitized Microspheres Angew.Chem.Int.Ed. 49, 1615-1618 (2010)
A. B. Laursen, K. T. Højholt, S.B. Simonsen, L. F. Lundegaard, S. Helveg, F. Schüth, M. Paul, J.-D. Grunwaldt, C.H. Christensen, K. Egeblad: Substrate Size-Selective Catalysis with Zeolite-Encapsulated Gold Nanoparticles Angew.Chem.Int.Ed. 49, 3504-3507 (2010)
R. Güttel, M. Paul, F. Schüth: Ex-post Size Control of High-Temperature-Stable Yolk-Shell Au, @ZrO2 Catalysts Chem.Commun. 46, 895-897 (2010)
Y. Liu, H. Tüysüz, C.-J. Jia, M. Schwickardi, R. Rinaldi, A.-H. Lu, W. Schmidt, F. Schüth: From glycerol to allylalcohol: Iron oxide catalyzed dehydration and consecutive hydrogen transfer Chem.Commun. 46, 1238-1240 (2010)
F. Schüth, R. Palkovits, R. Schlögl, D.S. Su: Ammonia as a Possible Element in an Energy Infrastructure: Catalysts for Ammonia Decomposition ChemSusChem, submitted
M Benitez, O. Petracic, H. Tüysüuz, F. Schüth, H. Zabel: Fingerprinting the magnetic behavior of antiferromagnetic nanostructures using remanent magnetization curves Phys.Rev.B, in press
C.J. Jia, Y. Liu, W. Schmidt, A.H. Lu, F. Schüth: Small Sized HZSM-5 Zeolite as Highly Active Catalyst for Gas Phase Dehydration of Glycerol to Acrolein J.Catal. 269, 71-79 (2010)
R. Palkovits, C. von Malotki, M. Baumgarten, K. Müllen, C. Baltes, M. Antonietti, P. Kuhn, J. Weber, A. Thomas, F. Schüth: Development of molecular and solid catalysts for the direct low-temperature oxidation of methane to methanol ChemSusChem 3, 277-282 (2010)
D. Gu, H. Bongard, Y.H. Deng, D. Feng, Z.X. Wu, Y. Fang, J.J. Mao, B. Tu, F. Schüth, D.Y. Zhao: Aqueous Emulsion Route to Synthesize Mesoporous Carbon Vesicles and Their Nanocomposites Adv.Mater. 22, 833-837 (2010)
High throughput methods in heterogeneous catalysis have been introduced at the end of the 1990s. The development was triggered by related techniques which are used in the pharmaceutical industry. One characteristic feature of high throughput approaches is massive parallelization of time consuming process steps. Our group is active in the development of methodologies for high throughput experimentation in heterogeneous catalysis. A major fraction of the catalysis setups in the group is parallelized. While initially the development of the experimental techniques was in the focus of our work, these lines of research are now pursued in a company which was spun out early on and which supplies industrial high-throughput solutions (www.hte-company.de). The group is still active in the development of specific techniques and artificial intelligence methods which support the catalyst discovery process.
Solid catalysts are often structured on the nanoscale. Various methods are available to achieve such nanostructuring, including different templating pathways. The combination of high surface area support materials and pre-formed nanoparticles provides a highly flexible access to nanostructured catalysts. We use a wide range of different nanoparticles to synthesize high activity supported catalysts, for instance for ultra-low temperature CO oxidation. Elaborate procedures are used for the synthesis of core-shell systems, in which single metal nanoparticles are encapsulated in hollow spheres. Since the nanoparticles are effectively isolated from each other, sintering is effectively prevented.
Mesoporous solids have pores in the size range between 2 and 50 nm, microporous materials pores below 2 nm. A multitude of different micro- and mesoporous solids is known, such as silica gels or activated carbons. The activities of the group in this research area are predominantly directed towards the synthesis of micro- and mesoporous materials with ordered pore system. For the synthesis of such materials two different processes can be used: On the one hand the materials can be structured by the use of so-called templates, i.e molecules, as in zeolite synthesis, or ordered arrays of molecules in form of liquid crystals. On the other hand structuring is possible via the so called „nanocasting“, i.e. a preformed pore system is used as a mold for another material in a process which resembles a casting procedure on the macroscale.
The initial stages of solids formation from solution are very elusive processes, and the “birth” of a solid particle, the nucleation, is almost impossible to detect. One the other hand, nucleation has important consequences on the properties of the particles which are obtained as the end result of a precipitation reaction As solution based synthetic procedures are of very high importance in the synthesis of solid catalysts, part of the activities of the department are devoted to the study of fundamental aspects of nucleation processes. A rather versatile method for such studies is mass spectrometry. ESI mass spectrometry techniques are being developed to obtain insight in the processes occurring in zeolite synthesis solutions. It has been found that immediately before solids formation, structural elements of the zeolites are already present as solution species. These technqiues are extended to other systems.
Hydrogen Storage is one of the key problems for the implementation of a hydrogen energy economy. Solid hydrides are possible alternatives to pressure or liquid hydrogen storage. After titanium doped NaAlH4 had been developed to a state that reaction kinetics of this reversible hydride are sufficiently fast for technical applications, work is now extended to the synthesis of other potential storage materials with higher capacities. Because many principally possible complex hydrides are not known as yet, an exploratory program has been initiated to search for such materials. The capabilities of the group include high pressure (up to 1000 bar) / low temperature synthesis, various systems for mechanical activation, and extended in-situ capabilities for the study of the hydrogenation/dehydrogenation reactions.
Due to the expected depletion of fossil fuels, alternatives are required for the supply of our societies with fuels and alternative feedstocks for chemical production. Different types of biomass are suitable for this, but lignocellulose is the preferred option, since there is no competition with food and feed. Work in the group is focussed on the depolymerization of cellulose and further conversion of the resulting sugars. Porous functionalized polymers are in the focus of the catalyst development, since due to their versatility they can in principle ideally be tuned to the requirements of the aqueous phase processing of biomass.
Baum, Florian
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Braun, Nadine
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Brinkmann, Rainer
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Dr. Castro, Maria
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Coelho, Nelize
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Dr. Deng, Tian Song
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Dr. Estévez Rivera, Hebert Jesus
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Dr. Felderhoff, Michael
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Ferrini, Paola
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Galeano Nunez, Diana Carolina
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Grömke, Tobias
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Zimmermann, Tobias
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Hauschild, Klaus
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Hilgert, Jakob
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Immohr, Sarah
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Kalischer, Kirsten
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Kestermann, Sandra
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Klasen, Tim
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Krappweis, Annette
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Kükrek, Murhat
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Lehmann, Alice
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Lim, Ivy
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Meine, Niklas
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Meister, Bernd
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Mezzavilla, Stefano
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Muldarisnur, Mulda
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Neudeck, Carolina
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Nunes de Oliveira, Heitor Fernando
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Oelert, Daniel
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Prof. Dr. Palkovits, Regina
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Passas-Lagos, Emmanouil
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Peinecke, Kateryna
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Pommerin, Andre
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Rathofer, Angelika
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Richter, Felix Herrmann
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Richter, Udo-B.
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Sahraoui, Laila
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Samsonova, Elena
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Schade, Simon
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Schinzel, Ruben
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Schlichte, Klaus
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Dr. Schmidt, Wolfgang N.
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Prof. Dr. Schüth, Ferdi
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Schulte, Jean Pascal
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Dr. Schunk, Daniel
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Dr. Shao, Huaiyu
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Sharifi, Parvin
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Soorholtz, Mario
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Supronowicz, Wojciech
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Tajvidi, Kameh
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Tomas, Marjan
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vom Stein, Julia Mareike
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Wang, Guanghui
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Wang, Shanshan
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Wang, Xingyu
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Wartke, Christian
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Wilczok, Ursula
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