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Using advanced operando X-ray tomographic microscopy, we were able to observe for the first time the formation of oxygen pathways in the porous transport layer, in three dimensions. Understanding oxygen transport is crucial for improving PEWE technology and this work provides precious insights for the design of future, better-performing PEWE cells. 30.03.2021 •Energy and Climate Using X-ray emission spectroscopy to study the electronic properties of single atom catalysts Single atom catalysts hold great promise as O2- or CO2-reduction electrocatalysts, but a deeper understanding of their active sites’ structure and electronic properties is needed in order to render them sufficiently active and stable. To this end, we have used X-ray emission spectroscopy to determine these catalysts’ electronic configuration, and performed in situ measurements that unveil the effect of potential on this key feature. 22.09.2020 •Energy and Climate Understanding of the Oxygen Evolution Reaction Kinetics in Acidic Environment The high operational expenditure of polymer electrolyte water electrolysis (PEWE) technology, dominated by kinetic losses from the sluggish oxygen evolution reaction (OER), inhibits large-scale market penetration. PSI researchers have developed a novel methodology to access underlying reaction mechanism of the OER. For the first time the reaction order for water has been determined. Advanced benchmarking of catalysts in technical environment also supports the development of novel, highly efficient catalyst materials. 01.05.2020 •Energy and Climate Hierarchically Structured Porous Transport Layers for Polymer Electrolyte Water Electrolysis The high operational and capital costs of polymer electrolyte water electrolysis technology originate from limited catalyst utilization and the use of thick membrane electrolytes. PSI researchers have developed novel multi-layer porous transport materials, which provide superior electrochemical performance in comparison to conventional single-layer structures. Publications Adsorption and Interfacial Layer Structure of Unmodified Nanocrystalline Cellulose at Air/Water Interfaces Bertsch P, Diener M, Adamcik J, Scheuble N, Geue T, Mezzenga R, Fischer P LANGMUIR 34, 15195 (2018). DOI: 10.1021/acs.langmuir.8b03056 Bovine Serum Albumin and Fibrinogen Adsorption at the 316L Stainless Steel/Aqueous Interface Wood Mary H, Payagalage C, Geue T JOURNAL OF PHYSICAL CHEMISTRY B 122, 5057 (2018). DOI: 10.1021/acs.jpcb.8b01347 publist2019_0.pdf publist2019.pdf 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 Erste Seite « Erste Vorherige Seite ‹ Vorherige … 11 12 13 14 15 16 17 18 19 … Nächste Seite Nächste › Letzte Seite Letzte »
01.09.2021 •Energy and Climate First direct observation of the oxygen transport in polymer electrolyte water electrolysis PSI researchers have developed a new methodology for studying the complex transport processes in polymer electrolyte water electrolysis (PEWE). Using advanced operando X-ray tomographic microscopy, we were able to observe for the first time the formation of oxygen pathways in the porous transport layer, in three dimensions. Understanding oxygen transport is crucial for improving PEWE technology and this work provides precious insights for the design of future, better-performing PEWE cells.
30.03.2021 •Energy and Climate Using X-ray emission spectroscopy to study the electronic properties of single atom catalysts Single atom catalysts hold great promise as O2- or CO2-reduction electrocatalysts, but a deeper understanding of their active sites’ structure and electronic properties is needed in order to render them sufficiently active and stable. To this end, we have used X-ray emission spectroscopy to determine these catalysts’ electronic configuration, and performed in situ measurements that unveil the effect of potential on this key feature.
22.09.2020 •Energy and Climate Understanding of the Oxygen Evolution Reaction Kinetics in Acidic Environment The high operational expenditure of polymer electrolyte water electrolysis (PEWE) technology, dominated by kinetic losses from the sluggish oxygen evolution reaction (OER), inhibits large-scale market penetration. PSI researchers have developed a novel methodology to access underlying reaction mechanism of the OER. For the first time the reaction order for water has been determined. Advanced benchmarking of catalysts in technical environment also supports the development of novel, highly efficient catalyst materials.
01.05.2020 •Energy and Climate Hierarchically Structured Porous Transport Layers for Polymer Electrolyte Water Electrolysis The high operational and capital costs of polymer electrolyte water electrolysis technology originate from limited catalyst utilization and the use of thick membrane electrolytes. PSI researchers have developed novel multi-layer porous transport materials, which provide superior electrochemical performance in comparison to conventional single-layer structures.
Publications Adsorption and Interfacial Layer Structure of Unmodified Nanocrystalline Cellulose at Air/Water Interfaces Bertsch P, Diener M, Adamcik J, Scheuble N, Geue T, Mezzenga R, Fischer P LANGMUIR 34, 15195 (2018). DOI: 10.1021/acs.langmuir.8b03056 Bovine Serum Albumin and Fibrinogen Adsorption at the 316L Stainless Steel/Aqueous Interface Wood Mary H, Payagalage C, Geue T JOURNAL OF PHYSICAL CHEMISTRY B 122, 5057 (2018). DOI: 10.1021/acs.jpcb.8b01347
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.