A5055727599- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Catalysts for Methane Reforming
- Mesoporous Materials and Catalysis
- Membrane Separation and Gas Transport
- Zeolite Catalysis and Synthesis
- Crystallography and molecular interactions
- Crystallization and Solubility Studies
- Catalysis and Hydrodesulfurization Studies
- Catalysis for Biomass Conversion
- X-ray Diffraction in Crystallography
- Advanced Photocatalysis Techniques
- Carbon dioxide utilization in catalysis
- Nanomaterials for catalytic reactions
- CO2 Reduction Techniques and Catalysts
- Electrocatalysts for Energy Conversion
- Carbon Dioxide Capture Technologies
- Metal-Organic Frameworks: Synthesis and Applications
- Ionic liquids properties and applications
- biodegradable polymer synthesis and properties
- Asymmetric Hydrogenation and Catalysis
- Biofuel production and bioconversion
- Ammonia Synthesis and Nitrogen Reduction
- Advanced Chemical Physics Studies
- Ferroelectric and Piezoelectric Materials
Leibniz Institute for Catalysis
2016-2025
University of Bayreuth
2025
University of Rostock
2011-2021
Rostocker Zentrum zur Erforschung des Demografischen Wandels
2014-2017
Leibniz Institute for Neurobiology
2013
Federal Institute For Materials Research and Testing
2008-2010
Leibniz Association
2010
Technische Universität Dresden
2001-2008
Max Planck Institute of Colloids and Interfaces
2005-2006
University of Münster
2006
This Perspective highlights recent developments in methane conversion into different hydrocarbons and C<sub>1</sub>-oxygenates. Our analysis identified possible directions for further research to bring the above approaches a commercial level.
Catalytic hydrosilylation represents a straightforward and atom-efficient methodology for the creation of C-Si bonds. In general, application homogeneous platinum complexes prevails in industry academia. Herein, we describe first heterogeneous single atom catalysts (SACs), which are conveniently prepared by decorating alumina nanorods with atoms. The resulting stable material efficiently catalyzes industrially relevant olefins high TON (≈105). A variety substrates is selectively...
It is of important scientific significance to develop membranes with high gas transfer properties. The primary aim our study was inspect the separation behavior and morphological characteristics mixed matrix (MMMs) based on TiO2-polyurethane (PU) methylene diisocyanate (MDI)-TiO2-PU using quantum mechanics (QM), Monte Carlo (MC), molecular dynamics (MD) simulations. Frontier Molecular Orbital (FMO) QM approaches such as Mulliken charges, density states (DOS), electrostatic potential (ESP),...
Abstract Crystallization of dl ‐alanine by cooling a supersaturated solution in the presence chiral double‐hydrophilic block copolymer poly(ethylene glycol)‐ ‐poly(ethylene imine)‐ S ‐isobutyric acid (PEG 4700 ‐PEI 1200 ‐ i BAc) yields crystal superstructures with an astonishing morphology. Although analysis light microscopy reveals these crystals to be apparently well facetted, electron shows that they consist three‐dimensionally, well‐aligned nanocrystals are scaffolded so‐called...
The preparation of temperature-responsive colloidal nanogels with a pH-responsive shell could be achieved by photo-cross-linking poly(N-isopropylacrylamide) (PNIPAAm) graft terpolymers. terpolymers were synthesized from NIPAAm, poly(2-vinylpyridine) (P2VP) macromonomers, and chromophore monomer based on dimethylmaleimide (DMIAAm). resulting solutions nanogel core chemically bounded arms exhibited more stablility upon heating low pH as compared to the corresponding PNIPAAm nanogels. A large...
Abstract We have investigated the adsorption of CO and 2 on epitaxially grown Cr O 3 (111) by means EELS. LEED, ARUPS, NEXAFS XPS. is found to adsorb oxide surface in an ordered (√3 × √3)R30° structure with molecular axis oriented approximately parallel surface. other hand reacts chromium form a carbonate. Adsorption CO, respectively reaction only takes place clean, freshly flashed Preadsorption oxygen leads which rather inert adsorption, likely due electronic or steric reasons.
Molecularly defined Ir complexes and different samples of supported IrO(2) nanoparticles have been tested compared in the catalytic water oxidation with cerium ammonium nitrate (CAN) as oxidant. By comparing activity nano-scaled particles to one organometallic it is shown that overall homogeneous precursors by both formation active species its conversion Ir(IV)-oxo nanoparticles. In first phase reaction dominated species. With increasing time, influence nano-sized Ir-oxo becomes more...
Continuous synthesis of diethyl carbonate from ethanol and CO<sub>2</sub> at the reaction equilibrium level is possible low contact times.
Cu single-atom catalysts (SACs) supported on CeO2–TiO2 were prepared by a sol–gel method and tested for CO oxidation between 120 350 °C. Operando in situ spectroscopic methods including diffuse reflectance infrared Fourier transform (DRIFT), electron paramagnetic resonance (EPR), near ambient pressure X-ray photoelectron spectroscopy (NAP-XPS) combined with other basic characterizations applied to identify active sites derive reliable structure–reactivity relationships. Rising the content...
Catalytic partial oxidation of methane presents a promising route to convert the abundant but environmentally undesired gas liquid methanol with applications as an energy carrier and platform chemical. However, outstanding challenge for this process remains in developing catalyst that can oxidize selectively good activity under continuous flow conditions phase using O2 oxidant. Here, we report Fe supported by metal-organic framework (MOF), Fe/UiO-66, selective on-stream methanol. Kinetic...
Molecular copper catalysts have emerged as promising candidates for the electrochemical reduction of CO 2 . Notable features such systems include ability Cu to generate C 2+ products and well‐defined active sites that allow targeted structural tuning. However, frequently observed in situ formation nanoclusters has undermined advantages molecular frameworks. It is therefore desirable develop Cu‐based retain their structures during electrolysis. In this context, a heterogenized binuclear...
CO2 hydrogenation to methanol (CH3OH) is widely accepted proceed through two parallel reactions: (i) CH3OH formation and (ii) the reverse water gas shift (RWGS) reaction CO. The latter causes loss of selectivity. Our spatially resolved analysis rates product over a classical CuZnAlOx catalyst in broad range conversion degrees (from 0 90% equilibrium conversion) suggests revisiting this concept. In comparison with RWGS reaction, decomposition CO mainly contributes selectivity rising degree...
The synthesis of amides is a key technology for the preparation fine and bulk chemicals in industry, as well manufacture plethora daily life products. Furthermore, it constitutes central bond-forming methodology organic provides basis numerous biomolecules. Here, we present robust amide compared to traditional amidation reactions: reductive esters with nitro compounds under additives-free conditions. In presence specific heterogeneous nickel-based catalyst wide range bearing different...
Abstract Hydrogen storage materials and technologies are deemed as the cornerstone towards a world economy less reliant on, ultimately independent of fossil resources. Ammonia is considered among most efficient carbon‐free hydrogen carriers because its relatively high gravimetric volumetric capacities and, equally important, ease transport storage. In addition, well‐established chemical production ammonia (preferably green Haber‐Bosch process) would accelerate immediate introduction into...
Carbon dioxide (CO2) capture and valorization have great potential for mitigating emissions of this greenhouse gas accordingly preserving the environment future generations. In regard, hydrogenation CO2 to methanol is highly attractive because product a valuable energy carrier can also be used production various everyday commodities. Although many research papers on topic been published in past decades, there still lack fundamentals relevant control catalyst performance. Herein, we...