Email: johannes.lercher@ch.tum.de
telephone: +49 (0)89 289 13540
Johannes A. Lercher, born in Vienna, Austria, obtained his doctorate degree in 1981 at the TU Wien under the supervision of Heinrich Noller. After a visiting lectureship at Yale University with Gary Haller and John Fenn, he joined TU Wien as lecturer and Associate Professor. From 1993 to 1998 he was Professor for Catalytic Materials and Processes at the Department of Chemical Technology of the University Twente, the Netherlands. In 1998 he moved to the TU München, Department of Chemistry, Chair for Chemical Technology. Johannes Lercher has been President of the International Zeolite Association and is Chairman of the Bavarian Chapter of the German Society for Oil Gas and Coal. He is currently Editor of Journal of Catalysis and is member of the board of several Catalysis journals. His research activities in the field of Heterogeneous Catalysis are documented in over 330 publications over 10 patents. His research is focused on fundamental and applied aspects of oxide and molecular sieve based sorption and catalysis, the design of complex multifunctional catalysts, in situ characterization of catalytic processes and developing new routes to activate convert and functionalize hydrocarbons in petroleum and petrochemical processes. Awards include the Christian Doppler Award, the Shell – Center of Excellence Award, and the PE-Award of the Indian Chemical Engineering Society.
From left to right:
PD. Dr. Andreas Jentys, PD Dr. Thomas E. Müller, Prof. Dr. Johannes A. Lercher, Dr. Jan Kornatowski
The group focuses on fundamental and applied research with respect to synthesis, characterization and utilization of macro-, meso-, and microscopically well-defined materials as catalysts and sorbents. Full integration with reactor technology with-in the group allows transferring fundamental results into scalable reaction routes for petroleum and petrochemical reactions. Materials studied include well-structured micro and mesoporous oxides containing metallic and oxidic nano-clusters. Catalyst or sorbent design and synthesis are based on the atomistic understanding of the target reactions. Advanced in situ characterization methods such as molecular spectroscopy (IR, Raman and inelastic neutron scattering) or X-ray absorption and diffraction are developed and improved by the group and are used to understand the synthesis and chemical properties of the materials. Generic catalytic target reactions are catalytic activation, functionalization and transformation of hydrocarbons, synthesis of amines, and reactions related to the reduction of emissions of mobile and stationary engines.
Research Highlights
Activation of alkanes by low temperature processes
The activation of (light) alkanes under mild conditions is one of the great challenges in order to allow utilization as transportation fuel and chemical intermediate. Based on fundamental studies of the interactions of alkanes with the surface of solid acids novel catalysts and processes to transform the n-alkanes into branched alkanes and alkylate iso-butane with n-butene are developed. The reaction routes are aimed to replace currently practiced processes with environmentally compatible alternatives. The key of the new approach is the possibility to control hydride transfer from alkanes to carbenium ions or alkoxi-groups (and indirectly their stability) as the most important single step in low temperature alkane chemistry. A new process for light alkane alkylation is currently under joint development with an industry / academia consortium.
[img]
[/img]Elementary steps of hydrocarbon sorption
Catalytically active sites of micro- and mesoporous materials are located in the inner of a maze of regular or irregular pores. Efficient steady state processes (e.g., catalyzed reactions) as well as processes relying on transients (separation processes) require a detailed understanding how molecules are adsorbed and transported in the pore network. Novel transient techniques using periodic pressure modulations combined with IR spectroscopy are used to characterize these processes on the millisecond timescale. The experiments show that, e.g., aromatic molecules adsorb in a weak precursor state behaving like a two dimensional gas on the outer surface of catalyst particles and then adsorb on specific active sites on the outside and in the micropores.
Further Research Interests
⇒ Amine synthesis:
⇒ Synthesis of cyclic amines with zeolitic catalysts
⇒ Selective reduction of nitriles
⇒ Homogeneous and phase transfer catalysis in amine synthesis
⇒ High temperature conversion of alkanes:
⇒ Oxidative cracking and oxidative dehydrogenation
⇒ Hydrogen/synthesis gas production for fuel cells
⇒ Steam and autothermal reforming in microreactors and monolith structures
⇒ Environmental Catalysis:
⇒ Storage-reduction NOx reduction catalysts
⇒ Dynamic behavior of urea based catalytic reduction systems
⇒ NOx reduction additives for FCC
⇒ Sulfur oxide trapping materials
⇒ Novel materials:
⇒ Low e-dielectrica for electronic devices using nano-particle composites
⇒ Synthesis of metal-substituted zeolites
Publications
2006
Xylene isomerization with surface-modified HZSM-5 zeolite catalysts: An in situ IR study
Zheng, S., A. Jentys and J. A. Lercher, Journal of Catalysis, 241, 2,304-311, 2006.
Synthesis of highly active sulfated zirconia by sulfation with SO3
Li, X., K. Nagaoka, R. Olindo and J. A. Lercher, Journal of Catalysis, 238, 1,39-45, 2006.
Spectroscopic Characterization of Cobalt-Containing Mesoporous Materials
Vrlstad, T., W. R. Glomm, M. Ronning, H. Dathe, A. Jentys, J. A. Lercher, G. Oye, M. Stoecker and J. Sjoeblom, Journal of Physical Chemistry B, 110, 11,5386-5394, 2006.
SOx Storage Materials under Lean-Rich Cycling Conditions. Part I: Identification of Transient Species
Dathe, H., P. Haider, A. Jentys and J. A. Lercher, Journal of Physical Chemistry B, 110, 22,10729-10737, 2006.
On the trapping of SOx on CaO-Al2O3-based novel high capacity sorbents
Dathe, H., A. Jentys, P. Haider, E. Schreier, R. Fricke and J. A. Lercher, Physical Chemistry Chemical Physics, 8, 13,1601-1613, 2006.
On the sticking probability of aromatic molecules on zeolites. Comment on \"STICKING PROBABILITY ON ZEOLITES\"
Jentys, A., R. R. Mukti and J. A. Lercher, Journal of Physical Chemistry B, 110, 35,17691-17693, 2006.
On the sticking probability of aromatic molecules on zeolites. Comment on "Sticking probability on zeolites"
Jentys, A., R. R. Mukti and J. A. Lercher, Journal of Physical Chemistry. B, 110, 35,17691-3; discussion 17694-5, 2006.
On the interaction of light amines and alcohols with alkali metal exchanged X zeolites
Schenkel, R., R. Olindo, J. Kornatowski and J. A. Lercher, Applied Catalysis, A: General, 307, 1,108-117, 2006.
Markownikoff and anti-Markownikoff hydroamination with palladium catalysts immobilized in thin films of silica supported ionic liquids
Jimenez, O., T. E. Mueller, C. Sievers, A. Spirkl and J. A. Lercher, Chemical Communications (Cambridge, United Kingdom), 28,2974-2976, 2006.
LaCl3-based catalysts for oxidative chlorination of CH4
Peringer, E., S. G. Podkolzin, M. E. Jones, R. Olindo and J. A. Lercher, Topics in Catalysis, 38, 1-3,211-220, 2006.
Kinetic modelling of the gas phase ethane and propane oxidative dehydrogenation
Machli, M., C. Boudouris, S. Gaab, J. Find, A. A. Lemonidou and J. A. Lercher, Catalysis Today, 112, 1-4,53-59, 2006.
Improving bifunctional zeolite catalysts for alkane hydroisomerization via gas phase sulfation
Woltz, C., A. Jentys and J. A. Lercher, Journal of Catalysis, 237, 2,337-348, 2006.
Hydroamination of 1,3-cyclohexadiene with aryl amines catalyzed with acidic form zeolites
Jimenez, O., T. E. Mueller, W. Schwieger and J. A. Lercher, Journal of Catalysis, 239, 1,42-50, 2006.
FT-IR spectroscopic study of interactions between methanol and MeAPO-5 single crystals
Bodis, J., J. Kornatowski and J. A. Lercher, Acta Universitatis Cibiniensis, Seria F: Chemia, 9, 1,29-38, 2006.
Formation of Solvent Cages around Organometallic Complexes in Thin Films of Supported Ionic Liquid
Sievers, C., O. Jimenez, T. E. Mueller, S. Steuernagel and J. A. Lercher, Journal of the American Chemical Society, 128, 43,13990-13991, 2006.
Energetic and entropic contributions controlling the sorption of benzene in zeolites
Jentys, A., R. R. Mukti, H. Tanaka and J. A. Lercher, Microporous and Mesoporous Materials, 90, 1-3,284-292, 2006.
Design of noble metal catalysts for deep hydrotreating
Lercher, J. A., B. Fonfe and M. F. Williams, Abstracts of Papers, 232nd ACS National Meeting, San Francisco, CA, United States, Sept. 10-14, 2006, FUEL-012, 2006.
Deposit formation and deactivation of zeolite LaX in isobutane/2-butene alkylation
Sievers, C., I. Zuazo, A. Guzman, R. Olindo and J. A. Lercher, Preprints - American Chemical Society, Division of Petroleum Chemistry, 51, 1,252-253, 2006.
Activation of light alkanes on sulfated zirconia
Olindo, R., X. Li and J. A. Lercher, Chemie Ingenieur Technik, 78, 8,1053-1060, 2006.
2005
Surface Processes during Sorption of Aromatic Molecules on Medium Pore Zeolites
Jentys, A., H. Tanaka and J. A. Lercher, Journal of Physical Chemistry B, 109, 6,2254-2261, 2005.
Sulfur and nitrogen sensitivity of supported Pt hydrogenation catalysts
Lercher, J. A., Abstracts of Papers, 229th ACS National Meeting, San Diego, CA, United States, March 13-17, 2005, PETR-034, 2005.
Sulfate formation on SOx trapping materials studied by Cu and S K-edge XAFS
Dathe, H., A. Jentys and J. A. Lercher, Physical Chemistry Chemical Physics, 7, 6,1283-1292, 2005.
Oxidative synthesis of methyl chloride from methane
Peringer, E., B. Tope, O. Manoilova and J. A. Lercher, DGMK Tagungsbericht, 2005-2, Proceedings of the DGMK/SCI-Conference \"Oxidation and Functionalization: Classical and Alternative Routes and Sources\", 2005,131-138, 2005.
Oxidative Activation of n-Butane on Sulfated Zirconia
Li, X., K. Nagaoka, L. J. Simon, R. Olindo, J. A. Lercher, A. Hofmann and J. Sauer, Journal of the American Chemical Society, 127, 46,16159-16166, 2005.
On the formation of the acid sites in lanthanum exchanged X zeolites used for isobutane/cis-2-butene alkylation
Guzman, A., I. Zuazo, A. Feller, R. Olindo, C. Sievers and J. A. Lercher, Microporous and Mesoporous Materials, 83, 1-3,309-318, 2005.
New modifications of layered MCM-36 molecular sieve pillared with various mixed oxides: Facts and perspectives
Kornatowski, J., J. O. Barth and J. A. Lercher, Studies in Surface Science and Catalysis, 156, Nanoporous Materials IV,349-356, 2005.
Multitechnique Characterization of Coke Produced during Commercial Resid FCC Operation
Cerqueira, H. S., C. Sievers, G. Joly, P. Magnoux and J. A. Lercher, Industrial & Engineering Chemistry Research, 44, 7,2069-2077, 2005.
Methane autothermal reforming with and without ethane over mono- and bimetal catalysts prepared from hydrotalcite precursors
Nagaoka, K., A. Jentys and J. A. Lercher, Journal of Catalysis, 229, 1,185-196, 2005.
Metal organic frameworks based on Cu2+ and benzene-1,3,5-tricarboxylate as host for SO2 trapping agents
Dathe, H., E. Peringer, V. Roberts, A. Jentys and J. A. Lercher, Comptes Rendus Chimie, 8, 3-4,753-763, 2005.
Mechanism of butane skeletal isomerization on sulfated zirconia
Li, X., K. Nagaoka, L. J. Simon, R. Olindo and J. A. Lercher, Journal of Catalysis, 232, 2,456-466, 2005.
Ir-based additives for NO reduction and CO oxidation in the FCC regenerator: Evaluation, characterization and mechanistic studies
Iliopoulou, E. F., E. A. Efthimiadis, L. Nalbandian, I. A. Vasalos, J. O. Barth and J. A. Lercher, Applied Catalysis, B: Environmental, 60, 3-4,277-288, 2005.
Interaction between sulfated zirconia and alkanes: prerequisites for active sites-formation and stability of reaction intermediates
Li, X., K. Nagaoka, L. J. Simon, J. A. Lercher, S. Wrabetz, F. C. Jentoft, C. Breitkopf, S. Matysik and H. Papp, Journal of Catalysis, 230, 1,214-225, 2005.
In Situ S K-Edge X-ray Absorption Spectroscopy for Understanding and Developing SOx Storage Catalysts
Dathe, H., A. Jentys and J. A. Lercher, Journal of Physical Chemistry B, 109, 46,21842-21846, 2005.
In Situ Measurement of Dissolved Hydrogen during the Liquid-Phase Hydrogenation of Dinitriles-Method and Case Study
Schaerringer, P., T. E. Mueller, W. Kaltner and J. A. Lercher, Industrial & Engineering Chemistry Research, 44, 25,9770-9775, 2005.
Activity and Selectivity Control in Reductive Amination of Butyraldehyde over Noble Metal Catalysts
Bodis, J., L. Lefferts, T. E. Mueller, R. Pestman and J. A. Lercher, Catalysis Letters, 104, 1-2,23-28, 2005.
2004
DGMK Tagungsbericht 2004-3: Proceedings of the DGMK-Conference \"C4/C6-Hydrocarbons: Routes to higher value-added products\" held 13-15 October 2004 in Munich, Germany
Ernst, S., A. Jess, J. A. Lercher, P. Prinz, E. Schwab and Editors, 2004.
Tailoring adsorption/desorption properties of hydroamination catalysts with ionic liquids
Muller, T. E., O. Jimenez and J. A. Lercher, Abstracts of Papers, 228th ACS National Meeting, Philadelphia, PA, United States, August 22-26, 2004, ORGN-282, 2004.
Surface acidity and basicity of La2O3, LaOCl, and LaCl3 characterized by IR spectroscopy, TPD, and DFT calculations
Manoilova, O. V., S. G. Podkolzin, B. Tope, J. Lercher, E. E. Stangland, J.-M. Goupil and B. M. Weckhuysen, Journal of Physical Chemistry B, 108, 40,15770-15781, 2004.
Oxygen reactivity and formate structure in X zeolite
Rep, M., J. G. van Ommen, L. Lefferst and J. A. Lercher, Studies in Surface Science and Catalysis, 154C, Recent Advances in the Science and Technology of Zeolites and Related Materials,2745-2753, 2004.
Oxidative ethane activation over oxide supported molten alkali metal chloride catalysts
Gaab, S., J. Find, R. K. Grasselli and J. A. Lercher, Studies in Surface Science and Catalysis, 147, Natural Gas Conversion VII,673-678, 2004.
On the Nature of Nitrogen-Containing Carbonaceous Deposits on Coked Fluid Catalytic Cracking Catalysts
Barth, J. O., A. Jentys and J. A. Lercher, Industrial & Engineering Chemistry Research, 43, 10,2368-2375, 2004.
On the mechanism of catalyzed isobutane/butene alkylation by zeolites
Feller, A., A. Guzman, I. Zuazo and J. A. Lercher, Journal of Catalysis, 224, 1,80-93, 2004.
Novel Model Explaining Toluene Diffusion in HZSM-5 after Surface Modification
Zheng, S., H. Tanaka, A. Jentys and J. A. Lercher, Journal of Physical Chemistry B, 108, 4,1337-1343, 2004.
Novel derivatives of MCM-36 as catalysts for the reduction of nitrogen oxides from FCC regenerator flue gas streams
Barth, J.-O., A. Jentys, E. F. Iliopoulou, I. A. Vasalos and J. A. Lercher, Journal of Catalysis, 227, 1,117-129, 2004.
Mechanistic features of the ethane oxidative dehydrogenation by in situ FTIR spectroscopy over a MoO3/Al2O3 catalyst
Heracleous, E., A. A. Lemonidou and J. A. Lercher, Applied Catalysis, A: General, 264, 1,73-80, 2004.
Mass transfer processes during sorption and diffusion of aromatic molecules on medium pore zeolites
Jentys, A., H. Tanaka and J. A. Lercher, Studies in Surface Science and Catalysis, 154B, Recent Advances in the Science and Technology of Zeolites and Related Materials,2041-2048, 2004.
Light alkane isomerization with sulfated zirconia - from mechanistic insight to new catalysts
Li, X., K. Nagaoka, L. J. Simon and J. A. Lercher, DGMK Tagungsbericht, 2004-3, Proceedings of the DGMK-Conference \"C4/C5-Hydrocarbons: Routes to Higher Value-Added Products\", 2004,15-22, 2004.
Labile sulfates as key components in active sulfated zirconia for n-butane isomerization at low temperatures
Li, X., K. Nagaoka and J. A. Lercher, Journal of Catalysis, 227, 1,130-137, 2004.
Investigation of the Adsorption of Methanol on Alkali Metal Cation Exchanged Zeolite X by Inelastic Neutron Scattering
Schenkel, R., A. Jentys, S. F. Parker and J. A. Lercher, Journal of Physical Chemistry B, 108, 23,7902-7910, 2004.
Interactions of methanol with AlPO4-5 and SAPO-5 single crystals
Bodis, J., J. Kornatowski and J. A. Lercher, Studia Universitatis Babes-Bolyai, Chemia, 49, 2,47-52, 2004.
INS and IR and NMR Spectroscopic Study of C1-C4 Alcohols Adsorbed on Alkali Metal-Exchanged Zeolite X
Schenkel, R., A. Jentys, S. F. Parker and J. A. Lercher, Journal of Physical Chemistry B, 108, 39,15013-15026, 2004.
Inelastic Neutron Scattering of Hydrogen and Butyronitrile Adsorbed on Raney-Co Catalysts
Chojecki, A., H. Jobic, A. Jentys, T. E. Mueller and J. A. Lercher, Catalysis Letters, 97, 3-4,155-162, 2004.
Hydroamination reactions catalysed with beta zeolites
Jimenez, O., T. E. Mueller, W. Schwieger and J. A. Lercher, Studies in Surface Science and Catalysis, 154C, Recent Advances in the Science and Technology of Zeolites and Related Materials,2788-2794, 2004.
Hydroamination of phenylacetylene in a water-heptane liquid-liquid two-phase catalytic system
Bodis, J., T. E. Mueller and J. A. Lercher, Acta Universitatis Cibiniensis, Seria F: Chemia, 7, 1,37-44, 2004.
Hydroamination of 1,3-cyclohexadiene in water-heptane liquid-liquid two-phase catalytic system
Bodis, J., T. E. Muller and J. A. Lercher, Studia Universitatis Babes-Bolyai, Chemia, 49, 2,41-46, 2004.
Heterogeneous catalysts for hydroamination reactions: structure-activity relationship
Penzien, J., C. Haessner, A. Jentys, K. Kohler, T. E. Muller and J. A. Lercher, Journal of Catalysis, 221, 2,302-312,
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