La recherche énergétique de l’Institut Paul Scherrer se concentre sur la recherche de procédés susceptibles d’être utilisés dans des technologies durables et sûres pour un approvisionnement en énergie si possible exempt d’émissions CO2. Les énergies renouvelables constituent un point fort important. A la plateforme ESI (Energy System Integration), la recherche et l’industrie peuvent tester des solutions d’intégration d’énergies renouvelables. Un autre point fort de ce domaine est l’utilisation sûre de l’énergie nucléaire. Ces activités sont complétées par des analyses d’évaluation globale des systèmes énergétiques. Le PSI mène également de la recherche climatique et environnementale sur les processus chimiques qui se jouent dans l’atmosphère.
Pour en savoir plus, reportez-vous à Aperçu Energie et climat
Insights into the superior oxygen evolution reaction activity of CoOx/CeO2 composite electrocatalyst
CeO2 significantly enhances the oxygen evolution reaction (OER) activity of CoOx, although the mechanism behind this synergy is still unclear. Here, operando hard X-ray absorption spectroscopy (hXAS) is applied to monitor the Co-K edge and Ce L3 edge in CoOx/CeO2 to shed light on the evolution of Co and Ce oxidation states during OER. In addition, ex situ soft XAS (sXAS) characterizations provide information on the irreversible surface-specific transformations of the Co L3 edge as well as the O K edge.
PSI-UCL-Surrey workshop on silicon and germanium based quantum devices
A team of PSI scientists as well as collaborators from UCL and the University of Surrey met at the Fondazione Monte Verità to discuss results and trace the roadmap for future research into quantum devices based on silicon and germanium.
Proxima Fusion déménage à Park Innovaare
Proxima Fusion et l'Institut Paul Scherrer (PSI) ont signé un accord-cadre pour développer la technologie des aimants supraconducteurs à haute température (HTS).
Guérir ensemble les enfants cancéreux
L’étroite collaboration entre le PSI et l’Hôpital universitaire pédiatrique de Zurich a débuté il y a 20 ans, pour le bénéfice des enfants souffrant du cancer.
Willst du die Sommerpause für deine Karriere nutzen?
Fragst du dich, was du in den Sommerferien tun kannst, um deine Karrierechancen oder deine Arbeitsmarktfähigkeit zu verbessern? Dann suche nicht weiter, denn dieser Blogartikel gibt dir ein paar Ideen, wie du deine Neugier stillen, Motivation und Enthusiasmus wecken, und dabei deine Karriere voranbringen kannst:
Lehrberufe à la Carte 2024
700 Personen besuchten Berufsbildungsevent des PSI Paul Scherrer Instituts
Real-Time Insights into Sodium-Ion Battery Chemistry
Identification of gaseous decomposition products from irreversible side-reactions enables understanding of inner working of rechargeable batteries. Unlike for Li-ion batteries, the knowledge of the gas-evolution processes in Na-ion batteries is limited. Our study revealed that Na-ion cells develop a less stable solid-electrolyte interphase (SEI) compared to Li-ion cells due to higher solubility of SEI constituents in Na-electrolytes.
Un nouveau partenariat pour la fusion nucléaire
Proxima Fusion, de Munich, et le PSI ont signé un contrat cadre.
Anomalous spin precession systematic effects in the search for a muon EDM using the frozen-spin technique
In the paper, the international muEDM collaboration at PSI discusses systematic effects of the most sensitive measurement of the muon's electric dipole moment (EDM). Scientists from Europe are developing a prototype experiment using the frozen-spin technique (FST) to achieve unprecedented sensitivity. The FST meticulously aligns a magnetic field with a perpendicular electric field so that the muon's spin orientation always follows its momentum. This enhances the sensitivity to the muon EDM by about 3 orders of magnitude compared to the best result from the muon g-2 experiment at Brookhaven National Lab.
The paper addresses systematic effects that could mimic an EDM signal when E- and B-fields are not perfectly aligned, adjusted, or stable over time. While most effects cancel out when reversing the magnetic field, some residual effects the specifications for the fields' uniformity, stability, and orientation,
which are challenging but achievable.
Coopération dans le domaine des réacteurs
Copenhagen Atomics et l'Institut Paul Scherrer PSI ont conclu un accord de coopération portant sur une collaboration expérimentale de grande envergure.
Removal of ionic and colloidal 110 mAg from radioactive wastewater using radiografted chelating adsorbents
Nuclear power plays a crucial role in a sustainable future due to its ability to generate large amounts of low-carbon electricity, which is essential for mitigating climate change. Unlike fossil fuels, nuclear energy produces minimal greenhouse gas emissions, helping to reduce the overall carbon footprint of power generation. However, the main concern is the inevitable accumulation of nuclear waste, and this needs to be properly addressed. With the anticipated increase in the number of operating nuclear power plants around the world it is essential to develop new materials and technologies for nuclear waste management. In our latest study we have developed and tested new radiografted materials as potential 110mAg adsorbents. This silver radionuclide is a very elusive contaminant in the pressurized water reactors (PWR) and represents a major problem for normal operation. Additionally, 110mAg possess a significant danger to the environment, if not removed completely from the PWR wastewater.
Towards fast ptychography image reconstruction of EUV masks by deep neural networks
In this study, we explore and demonstrate a rapid method for actinic patterned EUV mask inspection based on a deep neural network (DNN) architecture which exploits a-priori information of the photomask sample. We aim to achieve fast, high-quality image reconstruction of an EUV mask by using comparatively few diffraction patterns in a formalism consistent with the ptychography approach.
We tested our prior-primed DNN method on both synthetic and experimental data, demonstrating that the sample can be reconstructed fast and with high fidelity, allowing us to map out the mask defects down to a size of about 40 nm.
Design and Preclinical Evaluation of a Novel Prostate-Specific Membrane Antigen Radioligand Modified with a Transthyretin Binder
Radioligands targeting the prostate-specific membrane antigen (PSMA) are currently used in the clinics to treat patients with metastatic castration-resistant prostate cancer. Continuous investigations are, nevertheless, conducted to design new small molecule-based radioligands and improve their respective pharmacokinetic properties. Various strategies have been devised to reasonably prolong the blood circulation, which would result into enhanced tumor accumulation and radiation dose delivered to eliminate the cancer cells. The goal of this study was to investigate the influence of the incorporation of a transthyretin binder (TB-01) in the tumor uptake of the resultant PSMA-targeted radioligand.
Slipping a note to a neighbour: the cellular way
Study reveals how drug molecules bind in channels between neighbouring cells, changing intercellular communication.
International collaboration lays the foundation for future AI for materials via the OPTIMADE standard
Artificial intelligence (AI) is accelerating the development of new materials. A prerequisite for AI in materials research is large-scale use and exchange of data on materials, which is facilitated by a broad international standard. A major international collaboration including researchers from the LMS laboratory now presents an extended version of the OPTIMADE standard.
Observation of Mermin-Wagner behavior in LaFeO3/SrTiO3 superlattices
Two-dimensional magnetic materials can exhibit new magnetic properties due to the enhanced spin fluctuations that arise in reduced dimension. However, the suppression of the long-range magnetic order in two dimensions due to long-wavelength spin fluctuations, as suggested by the Mermin-Wagner theorem, has been questioned for finite-size laboratory samples. Here we study ...
Aluminium et panneaux solaires
Le bâtiment de la SLS est en train de se doter d’une nouvelle toiture.
Coexistence of Superconductivity and Antiferromagnetism in Topological Magnet MnBi2Te4 Films
The interface of two materials can harbor unexpected emergent phenomena. One example is interface-induced superconductivity. In this work, we employ molecular beam epitaxy to grow a series of heterostructures formed by stacking together two nonsuperconducting antiferromagnetic materials, an intrinsic antiferromagnetic topological insulator MnBi2Te4 and an antiferromagnetic iron chalcogenide FeTe.
Können Aerosole die Erderwärmung stoppen?
Partikel in die Stratosphäre injizieren und damit die Erde kühlen? PSI-Forscher Markus Ammann äussert sich im Interview kritisch zu umstrittenem solarem Geoengineering.
leadXpro et Golgi Neurosciences travaillent sur des modulateurs de GPR65
leadXpro, une entreprise dérivée du PSI dans le domaine de la biotechnologie, et Golgi Neurosciences, un incubateur biotechnologique basé à Milan, ont annoncé un partenariat pour le développement de thérapies pour les maladies neurodégénératives. Ils travaillent sur des modulateurs positifs et négatifs du récepteur GPR65, qui joue un rôle dans la neuroinflammation, la sclérose en plaques, la maladie de Parkinson, la fibrose, le cancer et les maladies inflammatoires de l'intestin.
Phonon promoted charge density wave in topological kagome metal ScV6Sn6
Charge density wave (CDW) orders in vanadium-based kagome metals have recently received tremendous attention, yet their origin remains a topic of debate. The discovery of ScV6Sn6, a bilayer kagome metal featuring an intriguing √3 × √3 × √3 CDW order, offers a novel platform to explore the underlying mechanism behind the unconventional CDW. Here we combine ...
Seasonal Gas Storage Facilities in Switzerland
Switzerland is the only country in central Europe without large seasonal gas storage facilities. Should it build some?
15th EMUG meeting, Rome, Italy (Hybrid), 2024
Sapienza University - Rome, EMUG 2024 (Hybrid)
Création de l'Association pour la Recherche et l'Innovation Médicales dans le Canton d'Argovie
Le 3 juin 2024, le Kantonsspital Aarau, le Kantonsspital Baden, la Hirslanden Klinik Aarau, l'ETH Zurich, l'Empa et l'Institut Paul Scherrer (PSI) ont fondé l'« Association pour la Recherche et l'Innovation Médicales dans le Canton d'Argovie ». Ce projet vise à intensifier le transfert de connaissances entre la recherche et la pratique clinique, afin de rendre les innovations médicales plus rapidement accessibles.
Ausflug der Lernenden Polymechaniker
Lernende haben einen Einblick in die Fertigung von Werkzeugmaschinen
Scientist careers at our partner companies: Sara Da Ros, Head Strategic Supply Chain Projects at Siegfried
Our partner companies are interested in attracting PSI's early career researchers, and we introduce scientists working at partner companies to showcase career perspectives. In today's post, meet Sara Da Ros who did her PhD in organic chemistry at ETHZ and is currently Head of Strategic Supply Chain Projects at Siegfried. She tells us how she managed the transition away from academia, and what she is working on now.
Une nouvelle association réunit pratique médicale et recherche
L’«Association pour la recherche médicale et l’innovation dans le canton d’Argovie» a été fondée le 3 juin 2024.
Le PSI dans un nouveau design
Le PSI est le plus grand institut de recherche suisse pour les sciences naturelles et les sciences de l’ingénierie. Site principal pour les grandes installations scientifiques du pays, il mène des travaux de pointe dans le domaine des technologies d’avenir, de l’énergie et du climat, de l’innovation santé et des fondements de la nature.
Welcome to Our New Team Members!
We are delighted to extend a warm welcome to Dr. Haohan Zhang and Elizaveta Artiushova as they join our research team.
Promotion versus Poisoning in Copper–Gallium-Based CO2-to-Methanol Hydrogenation Catalysts
Cu–Ga-based CO2-to-methanol hydrogenation catalysts display a range of catalytic performance, depending on their preparation. Here, we investigated how the Ga/Cu ratio and Ga speciation affect the catalytic activity. Using surface organometallic chemistry, we prepared a series of silica-supported 3–6 nm Cu1–xGaxOy nanoparticles with a range of xGa. The materials display a volcano-type activity behavior, where methanol formation is promoted when xGa < 0.13–0.18 and is suppressed at higher values, indicating a poisoning of the catalysts. In situ X-ray absorption spectroscopy and in situ infrared spectroscopy helped to understand the structure-activity relationship.