A5019826718- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Ionic liquids properties and applications
- Catalysis and Hydrodesulfurization Studies
- Solid-state spectroscopy and crystallography
- Industrial Gas Emission Control
- Crystal Structures and Properties
- Thermal and Kinetic Analysis
- Polyoxometalates: Synthesis and Applications
- Metal Extraction and Bioleaching
- Carbon dioxide utilization in catalysis
- Gas Sensing Nanomaterials and Sensors
- Organometallic Compounds Synthesis and Characterization
- Chemical and Physical Properties in Aqueous Solutions
- Metallurgical Processes and Thermodynamics
- Carbon Dioxide Capture Technologies
- Crystal structures of chemical compounds
- Chemical Synthesis and Reactions
- Organometallic Complex Synthesis and Catalysis
- Nanomaterials for catalytic reactions
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Asymmetric Hydrogenation and Catalysis
- Zeolite Catalysis and Synthesis
- Ammonia Synthesis and Nitrogen Reduction
Technical University of Denmark
2015-2024
Centre for Sustainable Energy
2007-2020
Institute of Catalysis and Petrochemistry
2007-2011
Ørsted (Denmark)
2010
University of Patras
1989-2008
Foundation for Research and Technology Hellas
2001-2008
Green Chemistry
2008
Friedrich-Alexander-Universität Erlangen-Nürnberg
2005
University of Copenhagen
2004
FORTH Institute of Chemical Engineering Sciences
2004
Abstract Applications of ionic liquids to replace conventional solvents in homogeneous transition‐metal catalysis have increased significantly during the last decade. Biphasic liquid/organic liquid systems offer advantages with regard product separation, catalyst stability, and recycling but utilise case fast chemical reactions only a small amount expensive catalyst. The novel Supported Ionic Liquid Phase (SILP) concept overcomes these drawbacks allows use fixed‐bed reactors for continuous...
The advantages of heterogeneous catalysis and transition-metal in ionic liquids are combined rhodium bisphosphine catalysts an ionic-liquid phase on a silica support. These active, regioselective, highly stable were applied fixed-bed reactor for the continuous-flow gas-phase hydroformylation propene. Supporting information this article is available WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z461534_s.pdf or from author. Please note: publisher not responsible content...
Ionic liquids can reversibly absorb large amounts of molecular SO2 gas under ambient conditions with the captured in a restricted configuration, possibly allowing to probe internal cavity structures ionic besides being useful for removal pollution control.
Ionic liquids (ILs) comprised of ammonium cations and anions naturally occurring amino acids containing an additional amine group (e.g., lysine, histidine, asparagine, glutamine) were examined as high-capacity absorbents for CO2. An absorption capacity 2.1 mol CO2 per IL (3.5 kg IL, 13.1 wt% CO2) was measured [N66614][Lys] at ambient temperature about 1 808C (under bar CO2). This demonstrated that desorption is possible under CO2-rich conditions by temperature-swing absorption; three...
Pharmaceutically active compounds in ionic liquid form immobilized onto mesoporous silica are stable, easily handled solids, with fast and complete release from the carrier material when placed into an aqueous environment. Depending on specific ion-surface interactions, they may also exhibit improved thermal stability compared to non-adsorbed compounds.
A solid, silica-supported ionic liquid phase (SILP) rhodium iodide Monsanto-type catalyst system, [BMIM][Rh(CO)2I2]–[BMIM]I–SiO2, exhibits excellent activity and selectivity towards acetyl products in fixed-bed, continuous gas-phase methanol carbonylation.
Supported ionic liquid phase (SILP) catalysts have been studied with regard to their long-term stability in the continuous gas-phase hydroformylation of propene. Kinetic data acquired by variation temperature, pressure, syngas composition, substrate concentration, and residence time. The activation energy was determined be 63.3 ± 2.1 kJ mol-1, which is good agreement known results from biphasic hydroformylation. kinetic studies confirmed previously published on homogeneous nature...
V2O5/TiO2 and heteropoly acid promoted catalysts were prepared characterized by N2 physisorption, XRPD NH3-TPD. The influence of the calcination temperature from 400 to 700 °C on crystallinity acidic properties was studied compared with activity for selective catalytic reduction (SCR) NO ammonia. SCR found be much higher than unpromoted catalysts. stability is dependent there a gradual decrease in acidity increase temperatures. Furthermore, showed excellent alkali deactivation resistance...
Brønsted acid ionic liquids (BAILs) were prepared and applied as combined promoters reaction media in Pd–phosphine catalyzed methoxycarbonylation of ethylene to produce methyl propionate. The BAILs served alternatives common mineral acids required for the reaction, e.g. methanesulfonic or sulfuric acid, resulting high catalytic activity selectivity towards In addition, yielded a biphasic system with product provided stability palladium intermediates avoiding undesirable formation black after...
Abstract The catalytic activity of large zeolite H‐ZSM‐5 crystals in methanol (MTO) and ethanol‐to‐olefins (ETO) conversions was investigated and, using operando UV/Vis measurements, the deactivation correlated with formation coke. These findings were related to situ single crystal confocal fluorescence micro‐spectroscopy, allowing observation spatiotemporal intermediates coke species during MTO ETO conversions. It observed that rapid at elevated temperatures due fast aromatics periphery...
Barium-promoted cobalt catalysts supported on carbon exhibit higher ammonia activities at synthesis temperatures than the commercial, multipromoted iron catalyst and also a lower inhibition.