A5039726667- Ionic liquids properties and applications
- Catalysis and Oxidation Reactions
- Hybrid Renewable Energy Systems
- Catalytic Processes in Materials Science
- Hydrogen Storage and Materials
- Electrochemical Analysis and Applications
- Carbon dioxide utilization in catalysis
- Chemical Synthesis and Reactions
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Asymmetric Hydrogenation and Catalysis
- Catalysis and Hydrodesulfurization Studies
- Fuel Cells and Related Materials
- Ammonia Synthesis and Nitrogen Reduction
- Catalysts for Methane Reforming
- Electrocatalysts for Energy Conversion
- Organometallic Complex Synthesis and Catalysis
- Inorganic and Organometallic Chemistry
- Catalysis for Biomass Conversion
- Phase Equilibria and Thermodynamics
- Innovative Microfluidic and Catalytic Techniques Innovation
- Extraction and Separation Processes
- Polyoxometalates: Synthesis and Applications
- CO2 Reduction Techniques and Catalysts
- Carbon Dioxide Capture Technologies
Helmholtz Institute Erlangen-Nürnberg
2016-2025
Forschungszentrum Jülich
2016-2025
Friedrich-Alexander-Universität Erlangen-Nürnberg
2016-2025
Norsk Hydro (Germany)
2024-2025
Comprehensive Cancer Center Erlangen
2010-2017
Interface (United States)
2017
Reaction Engineering International (United States)
2014
Max Planck Institute for the Science of Light
2013
Advanced Optical Technologies (United States)
2009-2012
Energie Baden-Württemberg (Germany)
2012
Ionic liquids are salts that liquid at low temperature (<100 degrees C) which represent a new class of solvents with nonmolecular, ionic character. Even though the first representative has been known since 1914, have only investigated as for transition metal catalysis in past ten years. Publications to date show replacing an organic solvent by can lead remarkable improvements well-known processes. form biphasic systems many product mixtures. This gives rise possibility multiphase reaction...
ConspectusThe need to drastically reduce CO2 emissions will lead the transformation of our current, carbon-based energy system a more sustainable, renewable-based one. In this process, hydrogen gain increasing importance as secondary vector. Energy storage requirements on TWh scale (to bridge extended times low wind and sun harvest) global logistics renewable equivalents create additional driving forces toward future economy. However, nature requires dedicated infrastructures, has prevented...
Ionische Flüssigkeiten sind bei niedrigen Temperaturen (<100 °C) schmelzende Salze, die eine neuartige Klasse von Lösungsmitteln mit nichtmolekularem, ionischem Charakter darstellen. Auch wenn einige bereits seit 1914 bekannt sind, wurden ionische erst in den letzten zehn Jahren intensiv als Lösungsmittel für Übergangsmetallkatalyse untersucht. Die seither erschienenen Veröffentlichungen belegen, dass der Ersatz organischer durch Flüssigkeit zu bemerkenswerten Verbesserungen bekannter...
A new approach for the deep desulfurization of diesel fuels by extraction with ionic liquids is described.
A viable hydrogen infrastructure is one of the main challenges for fuel cells in mobile applications. Several studies have investigated most cost-efficient supply chain structure, with a focus on transportation. However, models based produced by electrolysis require additional seasonal storage capacity to close gap between fluctuation renewable generation from surplus electricity and fuelling station demand. To address this issue, we developed model that draws extends approaches literature...
Extraction of S- and N-compounds from gasoline diesel oil by ionic liquids (ILs) indicates that such a process could be an alternative to common hydrodesulfurization (HDS) for deep desulfurization down values 10 ppm S or even lower. The results show the selective extraction properties ILs, especially with regard those S-compounds which are hard remove HDS, e.g. dibenzothiophene derivatives present in middle distillates like oil. application mild conditions (ambient pressure temperature) fact...
This contribution describes a concept for the establishment of competitive energy distribution network based on Liquid Organic Hydrogen Carrier (LOHC) compounds. These compounds are characterized by fact that they can be loaded and un-loaded with considerable amounts hydrogen in cyclic process. links technical challenge storing temporary local over-production from regenerative sources vision sustainable, hydrogen-based mobility. The proposed LOHC have many physico-chemical similarities to...
Reducing CO2 emissions is an urgent global priority. The enforcement of a tax, stringent regulations, and investment in renewables are some the mitigation strategies currently place. For smooth transition to renewable energy, energy storage issue must be addressed decisively. Hydrogen regarded as clean carrier; however, its low density at ambient conditions makes challenging. hydrogen liquid organic carriers (LOHC) systems has numerous advantages over conventional systems. Most importantly,...
Linear alpha-olefins, such as 1-hexene and 1-octene, are important comonomers in the production of linear low-density polyethylene (LLDPE). The conventional method producing 1-octene is by oligomerization ethylene, which yields a wide spectrum alpha-olefins (LAOs). While there exists several processes for via ethylene trimerization, similar route selective has so far been elusive. We now, first time, report an unprecedented tetramerization reaction that produces selectivities exceeding 70%,...
Ionic liquids are considered as green solvents mainly due to their lack of vapour pressure. In fact, environmental and safety problems arising through the volatility organic can be avoided by use these innovative liquids. However, typical ionic consist halogen containing anions (such [AlCl4]−, [PF6]−, [BF4]−, [CF3SO3]− or [(CF3SO2)2N]−) which in some regard limit 'greenness'. The presence atoms may cause serious concerns if hydrolysis stability anion is poor (e.g. for [AlCl4]− [PF6]−) a...
Activity coefficients at infinite dilution have been measured with the dilutor technique for 20 solutes (alkanes, alkenes, cyclic hydrocarbons, aromatic ketones, alcohols, and water) in ionic liquids 1-methyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, 1-ethyl-3-methylimidazolium 1-butyl-3-methylimidazolium ethylsulfate. The measurements were carried out temperature range between 293.15 K 333.15 K. selectivities ( = / ) separation of aliphatics from aromatics n-hexane 1-hexene are...
Abstract Liquid organic hydrogen carrier (LOHC) systems offer a very attractive method for the decentralized storage of renewable excess energy. In this contribution, industrially well‐established heat‐transfer oils (typically sold under trade names, e.g., Marlotherm) are proposed as new class LOHC systems. It is demonstrated that liquid mixture isomeric dibenzyltoluenes (m.p. −39 to −34 °C, b.p. 390 °C) can be readily hydrogenated corresponding perhydrogenated analogues by binding 6.2 wt %...
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...
Methylation of the C2 position 1,3-dialkylimidazolium based ionic liquids disrupts predominant hydrogen-bonding interaction between cation and anion leading to unexpected changes physicochemical properties. We found viscosity 1-ethyl-2,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide [C2C1C1Im][Tf2N], for example, be about three times higher than that 1-ethyl-3-methylimidazolium [C2C1Im][Tf2N]. In order explain these macroscopic upon methylation we investigated vibrational as well...
Ten [C(8)C(1)Im](+) (1-methyl-3-octylimidazolium)-based ionic liquids with anions Cl(-), Br(-), I(-), [NO(3)](-), [BF(4)](-), [TfO](-), [PF(6)](-), [Tf(2)N](-), [Pf(2)N](-), and [FAP](-) (TfO=trifluoromethylsulfonate, Tf(2)N=bis(trifluoromethylsulfonyl)imide, Pf(2)N=bis(pentafluoroethylsulfonyl)imide, FAP=tris(pentafluoroethyl)trifluorophosphate) two [C(8)C(1)C(1)Im](+) (1,2-dimethyl-3-octylimidazolium)-based Br(-) [Tf(2)N](-) were investigated by using X-ray photoelectron spectroscopy...
This paper presents the first account on ecotoxicological profile of some potential LOHC structures.