Suchen Suchbegriff RelevanzDatum Sortieren nach Sub-Web Electrochemistry Laboratory (76) News & Events (69) PSI Center for Energy and Environmental Sciences (38) Laboratory of Environmental Chemistry (18) Technology Assessment (14) Research (11) Thin Films and Interfaces (11) Laboratory for Particle Physics (9) Über das PSI (9) Laboratory of Radiochemistry (8) PSI Center for Neutron and Muon Sciences (8) In-situ X-ray Spectroscopy (7) Laboratory for Neutron Scattering and Imaging (7) Laboratory for X-ray Nanoscience and Technologies (7) Laboratory for Muon Spin Spectroscopy (6) Laboratory for Nanoscale Biology (6) Energy Economics (5) Laboratory for Condensed Matter (5) Laboratory for Nano and Quantum Technologies (5) Laboratory of Atmospheric Chemistry (5) Secondary Beam Lines (SBL) (5) BL: SINQ/HRPT (4) Laboratory for Waste Management (4) BL: SINQ/AMOR (3) BL: SLS/Super_XAS (3) Laboratory for Femtochemistry (3) Laboratory of Biomolecular Research (3) Muon Physics (3) PSI Center for Accelerator Science and Engineering (3) SINQ – Swiss Spallation Neutron Source (3) SLS – Swiss Light Source (3) BL: SLS/CSAXS (2) BL: SLS/Phoenix (2) Chancengleichheit (2) Experimental Reactor Physics (2) Group PHOENIX (2) Insertion Devices Group (2) Laboratory for Advanced Spectroscopy and X-ray Sources (2) Laboratory for Energy Systems Analysis (2) Laboratory for Multiscale Materials Experiments (2) Laboratory for Neutron and Muon Instrumentation (2) Laboratory for Sustainable Energy Carriers & Processes (2) Low-Energy Muons (2) PSI Center for Life Sciences (2) PSI Center for Nuclear Engineering and Sciences (2) SLS 2.0 (2) SwissFEL Biolab (2) X-Ray Tomography Group (2) Abteilung Strahlenschutz und Sicherheit (1) Applied Catalysis and Spectroscopy (1) BL: SINQ/CAMEA (1) BL: SINQ/DMC (1) BL: SINQ/NEUTRA (1) BL: SINQ/TASP (1) BL: SLS/ADRESS (1) BL: SLS/Micro_XAS (1) BL: SLS/MS (1) BL: SLS/PEARL (1) BL: SLS/PXII (1) BL: SLS/PXIII (1) BL: SLS/TOMCAT (1) BL: SLS/XIL (1) Bulk µSR Group (1) Electronics for Measuring Systems (1) Electron Microscopy Facility (1) Group MicroXAS (1) High Energy Physics (1) Laboratory for Catalysis and Sustainable Chemistry (1) Laboratory for Macromolecules and Bioimaging (1) Laboratory for Non-linear Optics (1) Laboratory for Reactor Physics and Thermal-Hydraulics (1) Laboratory for Simulation and Modelling (1) Macromolecular Crystallography (1) nEDM Project (1) Neutron Diffraction (1) Neutron Imaging and Applied Materials (1) Neutron Spectroscopy (1) Project FAST (1) Project STARS (1) PSI-FELLOW (1) PSI Center for Photon Science (1) Solid State Chemistry (1) Spectroscopy of Quantum Materials Group (1) Strategic Areas ETH Domain (1) SμS – Swiss Muon Source (1) Tags Energiewende (30) Erneuerbare Energien (24) ESI-Plattform (15) SwissFEL (12) Energiesysteme (9) Industry Relations (9) Mobilität (9) Materialforschung (3) PSI-Campus (3) SINQ (3) SLS (3) Umwelt (3) Verschiedenes (3) Typ Dokument (207) Seite (129) PSI Stories (33) Scientific Highlights (32) Medienmitteilungen (30) Event (17) People page (8) Industry News (3) Lab News (2) 211 - 225 von 461 wird angezeigt publist2019.pdf 19.06.2018 Combining SAXS and XAS To Study the Operando Degradation of Carbon-Supported Pt-Nanoparticle Fuel Cell Catalysts In the last two decades, small-angle X-ray scattering (SAXS) and X-ray absorption spectroscopy (XAS) have evolved into two well-established techniques capable of providing complementary and operando information about a sample’s morphology and composition, respectively. Considering that operation conditions can often lead to simultaneous and related changes in a catalyst’s speciation and shape, herein we introduce a setup that combines SAXS and XAS in a configuration that allows optimum acquisition and corresponding data quality for both techniques. 26.07.2019 Operando X-ray Characterization of High Surface Area Iridium Oxides to Decouple their Activity Losses for the Oxygen Evolution Reaction In order to clarify the mechanism behind this activity loss, in this study two high surface area iridium oxides were characterized under operando conditions using a novel setup that allows the quasi-simultaneous acquisition of anomalous small angle X-ray scattering (A-SAXS) and X-ray absorption spectroscopy (XAS) data. Laboratory for Energy Systems Analysis (LEA) LEA is an interdivisional laboratory of the Nuclear Energy and Safety Research Division (NES) and the General Energy Research Division (ENE). It unites specific analytical research concerning diverse energy technologies, that is, nuclear, fossil and (new) renewables, and systems. 29.08.2016 Iridium Oxide for the Oxygen Evolution Reaction: Correlation between Particle Size, Morphology, and the Surface Hydroxo Layer from Operando XAS A simple and scalable method for preparation of well-defined chlorine–free iridium oxide nanoparticles active for oxygen evolution reaction (OER) was developed. Operando X-ray absorption spectroscopy and X-ray photoelectron spectroscopy indicate that OER activity is strongly related to the presence of iridium hydroxo (Ir–OH) species on the surface of iridium oxide nanoparticles. 17.02.2017 IrO2‑TiO2: A High-Surface-Area, Active, and Stable Electrocatalyst for the Oxygen Evolution Reaction We have developed a synthetic approach to highsurface-area chlorine-free iridium oxide nanoparticles dispersed in titania (IrO2-TiO2), which is a highly active and stable OER catalyst in acidic media. Operando X-ray absorption studies demonstrate the evolution of the surface species as a function of the applied potential, suggesting the conversion of the initial hydroxo surface layer to the oxo-terminated surface via anodic oxidation. 23.09.2015 •Energie et climat •7 min Des chemins hydrophiles pour améliorer l’efficacité des piles à combustible Des chercheurs de l’Institut Paul Scherrer (PSI) ont développé un procédé de revêtement qui pourrait améliorer l’efficacité des piles à combustible. Les scientifiques du PSI ont déjà déposé un brevet pour ce procédé qui se prête à la fabrication en série. 22.09.2016 •Energie et climat •7 min Energies renouvelables: démarrage de la plateforme d’essai ESI La plateforme Energy System Integration à l’Institut Paul Scherrer PSI entre en service cet automne. Elle a été présentée aujourd’hui aux médias et à quelque 150 représentants des milieux politiques, de l’industrie et du monde scientifique dans le cadre d’un double colloque intitulé Recherche énergétique suisse en réseau. Collaboration avec l’industrie Aperçu de sujets Edebeli_J_Thesis Molecules2013.pdf Laboratory for Neutron and Muon Instrumentation (LIN) - Scientific Publications Amor_NIMA_821_44.pdf BVR50 protocol PDF Erste Seite « Erste Vorherige Seite ‹ Vorherige … 11 12 13 14 15 16 17 18 19 … Nächste Seite Nächste › Letzte Seite Letzte »
19.06.2018 Combining SAXS and XAS To Study the Operando Degradation of Carbon-Supported Pt-Nanoparticle Fuel Cell Catalysts In the last two decades, small-angle X-ray scattering (SAXS) and X-ray absorption spectroscopy (XAS) have evolved into two well-established techniques capable of providing complementary and operando information about a sample’s morphology and composition, respectively. Considering that operation conditions can often lead to simultaneous and related changes in a catalyst’s speciation and shape, herein we introduce a setup that combines SAXS and XAS in a configuration that allows optimum acquisition and corresponding data quality for both techniques.
26.07.2019 Operando X-ray Characterization of High Surface Area Iridium Oxides to Decouple their Activity Losses for the Oxygen Evolution Reaction In order to clarify the mechanism behind this activity loss, in this study two high surface area iridium oxides were characterized under operando conditions using a novel setup that allows the quasi-simultaneous acquisition of anomalous small angle X-ray scattering (A-SAXS) and X-ray absorption spectroscopy (XAS) data.
Laboratory for Energy Systems Analysis (LEA) LEA is an interdivisional laboratory of the Nuclear Energy and Safety Research Division (NES) and the General Energy Research Division (ENE). It unites specific analytical research concerning diverse energy technologies, that is, nuclear, fossil and (new) renewables, and systems.
29.08.2016 Iridium Oxide for the Oxygen Evolution Reaction: Correlation between Particle Size, Morphology, and the Surface Hydroxo Layer from Operando XAS A simple and scalable method for preparation of well-defined chlorine–free iridium oxide nanoparticles active for oxygen evolution reaction (OER) was developed. Operando X-ray absorption spectroscopy and X-ray photoelectron spectroscopy indicate that OER activity is strongly related to the presence of iridium hydroxo (Ir–OH) species on the surface of iridium oxide nanoparticles.
17.02.2017 IrO2‑TiO2: A High-Surface-Area, Active, and Stable Electrocatalyst for the Oxygen Evolution Reaction We have developed a synthetic approach to highsurface-area chlorine-free iridium oxide nanoparticles dispersed in titania (IrO2-TiO2), which is a highly active and stable OER catalyst in acidic media. Operando X-ray absorption studies demonstrate the evolution of the surface species as a function of the applied potential, suggesting the conversion of the initial hydroxo surface layer to the oxo-terminated surface via anodic oxidation.
23.09.2015 •Energie et climat •7 min Des chemins hydrophiles pour améliorer l’efficacité des piles à combustible Des chercheurs de l’Institut Paul Scherrer (PSI) ont développé un procédé de revêtement qui pourrait améliorer l’efficacité des piles à combustible. Les scientifiques du PSI ont déjà déposé un brevet pour ce procédé qui se prête à la fabrication en série.
22.09.2016 •Energie et climat •7 min Energies renouvelables: démarrage de la plateforme d’essai ESI La plateforme Energy System Integration à l’Institut Paul Scherrer PSI entre en service cet automne. Elle a été présentée aujourd’hui aux médias et à quelque 150 représentants des milieux politiques, de l’industrie et du monde scientifique dans le cadre d’un double colloque intitulé Recherche énergétique suisse en réseau.