Emanuele Moioli is one of the recipients of the prestigious Ambizione Grant awarded by the Swiss National Science Foundation (SNSF) on a yearly basis. With the great news of his award having arrived in August 2022, Moioli embarks on the journey of his groundbreaking project titled “Moving catalyst vs. Multi-catalyst: determination of the best reactor for the processing of unconventional feedstock,” set to commence this August 2023.
Fliegen ohne CO2-Fussabdruck – das PSI und die Firma Metafuels AG entwickeln eine neue Technologie zur Produktion von nachhaltigem Flugtreibstoff.
The Paul Scherrer Institute and Alphasynt have recently signed a cooperation- and licensing agreement. In doing so, the two pave the way for a fruitful collaboration in the commercialization of methanation.
Das Paul Scherrer Institut PSI und das Start-up AlphaSYNT vermarkten einen neuen Ansatz, um Energie in Form von Methangas zu speichern.
Neue Anlage für synthetisches Erdgas für das Heizen von Wohngebäuden
PSI has collaborated with catalyst and engine manufacturers to understand the aging phenomena of emission control catalysts. To this end, a diesel oxidation catalyst with a relevant mileage was carefully analysed; the results suggest that a complex combination of poisoning and thermal sintering is the cause of deactivation during driving. A reactor setup was then developed to simulate poisoning and sintering effects for prediction of catalyst durability in time and cost effective manner.
Investigation on early stage of solid formation from solution, before nucleation, have been carried out at PSI by small angle scattering technique using X-ray light from the Swiss Light Source SLS. The system under analysis was calcium carbonate, a model system archetype of several sparsely soluble inorganic materials and relevant in many field such as CO2 capturing and biomineralization. The experimental setup, the method, and developed theoretical framework can be applied to many other systems and made available for the entire scientific community.
Kinetics and Mechanism of Metal Nanoparticle Growth via Optical Extinction Spectroscopy and Computational Modeling: The Curious Case of Colloidal Gold
An overarching computational framework unifying several optical theories to describe the temporal volution of gold nanoparticles (GNPs) during a seeded growth process is presented. To achieve this, we sed the inexpensive and widely available optical extinction spectroscopy, to obtain quantitative kinetic data. In situ spectra collected over a wide set of experimental conditions were regressed using the hysical model, calculating light extinction by ensembles of GNPs during the growth process. This model rovides temporal information on the size, shape, and concentration of the particles, and any electromagnetic interactions between them. Consequently, we were able to describe the mechanism of GNP growth and divide the process into distinct genesis periods. We provide explanations for several longstanding mysteries, e.g., the phenomena responsible for the purple-greyish hue during the early stages of GNP growth, the complex interactions between nucleation, growth and aggregation events, and a clear distinction between agglomeration and electromagnetic interactions. The presented theoretical formalism has been developed in a generic fashion so that it can readily be adapted to other nanoparticulate formation scenarios such as the genesis of various metal nanoparticles.
Forschende des PSI haben einen neuen Katalysator für die Reinigung von Abgasen aus Erdgasmotoren entwickelt. Er ist auch bei niedrigen Temperaturen sehr aktiv und bleibt es über lange Zeit. So lässt sich Erdgas sauberer und klimaschonender verbrennen. Erd- und Biogas werden dadurch noch attraktiver als Ersatz für Erdölprodukte – zum Beispiel als Treibstoff für Autos.