A5090515358- Solar Thermal and Photovoltaic Systems
- Calibration and Measurement Techniques
- Thermal Radiation and Cooling Technologies
- Catalytic Cross-Coupling Reactions
- Laser-induced spectroscopy and plasma
- Advanced ceramic materials synthesis
- Radical Photochemical Reactions
- Catalytic C–H Functionalization Methods
- Nuclear reactor physics and engineering
- Silicon and Solar Cell Technologies
- Spacecraft and Cryogenic Technologies
- Catalytic Processes in Materials Science
- Solar Energy Systems and Technologies
- Thermal properties of materials
- Nuclear Physics and Applications
- Graphite, nuclear technology, radiation studies
- Glass properties and applications
- Photovoltaic System Optimization Techniques
- High-pressure geophysics and materials
- solar cell performance optimization
- Synthesis and Characterization of Heterocyclic Compounds
- Catalysis and Oxidation Reactions
- Nuclear materials and radiation effects
- Adaptive optics and wavefront sensing
- Rocket and propulsion systems research
Laboratoire Procédés, Matériaux et Energie Solaire
2012-2023
AlzChem (Germany)
2000-2021
Kreisklinik Trostberg
2021
Centre National de la Recherche Scientifique
2007-2018
University of Rostock
2001-2003
FZI Research Center for Information Technology
1994
The development of new palladium catalysts for the cyanation various aryl and heteroaryl chlorides is described. combination amine co-catalysts with chelating phosphine ligands, example, 1,4-bis(diphenylphosphino)butane (dppb) or 1,5-bis(diphenylphosphino)pentane (dpppe), allows an efficient chloroarenes simple potassium cyanide. General palladium-catalyzed nonactivated deactivated possible first time. Studies oxidative addition halides to triphenylphosphine complexes in presence absence...
We report on the preparation, room temperature spectral reflectance and high-temperature thermal emittance characterization of different boride carbide Ultra-High Temperature Ceramics (UHTCs). The investigated samples are compared with a reference material for solar absorber applications, i.e. silicon carbide. show that properties UHTCs promising novel receivers.
This paper demonstrates a new concept of heat transfer fluid (HTF) for CSP applications, developed in the frame both National and European project (CSP2 FP7 project). It involves dense suspension small solid particles. innovation is currently. The particles receiver (DSPR) consists creating upward circulation (solid fraction range 30%-40%) vertical absorbing tubes submitted to concentrated solar energy. So acts as with capacity similar liquid HTF but only limited temperature by working limit...
Ammoxidation of p-nitrotoluene (PNT) to p-nitrobenzonitrile (PNB) has been carried out over some bulk and supported vanadium phosphate (VPO) catalysts also on V2O5 for the first time. The solid PNT was successfully metered catalyst bed using a saturator by maintaining temperature in above melting point with simultaneous bubbling known amount nitrogen gas as carrier vapours. observed undergo kind thermal decomposition at temperatures higher than 623 K even absence evidenced from blank tests....
Concentrating Solar Power (CSP) is considered to be one of the most promising and sustainable technologies for electricity production in future, as efficiency solar thermal systems rapidly increases with increasing working temperature, big challenge future develop novel solutions receivers. In this framework, Ultra-High Temperature Ceramics (UHTCs) are mainly studied protection materials aerospace military applications, but their peculiar properties (very high melting points good...
A new electrochemical synthesis of formamidine acetate by cathodic reduction cyanamide in an aqueous electrolyte and high yield was developed.
Haynes 25 alloy is used in the design of propulsion systems for spacecrafts and it can constitute a space debris at end life mission. All thruster combustion chambers nozzles are manufactured with thrusters storable monopropellant hydrazine. During atmospheric reentry pieces high velocity, submitted to temperatures an extreme environment atomic oxygen. This why temperature oxidation was studied, air plasma conditions range 1000-1700 K. Moreover, as emissivity important parameter know heat...