A5033625892- Electrocatalysts for Energy Conversion
- Zeolite Catalysis and Synthesis
- Electrochemical Analysis and Applications
- Advanced NMR Techniques and Applications
- Advanced battery technologies research
- Catalysis and Oxidation Reactions
- Mesoporous Materials and Catalysis
- Spectroscopy and Quantum Chemical Studies
- Catalytic Processes in Materials Science
- Chemical Synthesis and Characterization
- CO2 Reduction Techniques and Catalysts
- Advancements in Battery Materials
- Radical Photochemical Reactions
- Reproductive System and Pregnancy
- Click Chemistry and Applications
- Coagulation, Bradykinin, Polyphosphates, and Angioedema
- Carbon dioxide utilization in catalysis
- Machine Learning in Materials Science
- Advanced Battery Materials and Technologies
- Fluorine in Organic Chemistry
- Catalysts for Methane Reforming
- Membrane-based Ion Separation Techniques
- Muon and positron interactions and applications
- Catalysis and Hydrodesulfurization Studies
- Uterine Myomas and Treatments
Leiden University
2022-2024
Radboud University Nijmegen
2012-2023
Radboud University Medical Center
2012-2023
Utrecht University
2019-2021
Clinical Research Organization
2020
A large variety of nickel-based catalysts has been investigated for the oxygen evolution reaction (OER) in alkaline media. However, their reported activity, as well Tafel slope values, vary greatly. To understand this variation, we studied electrodeposited Ni80 Fe20 OOH with different loadings at varying rotation rates, hydroxide concentrations, or without sonication. We show that, low current density (<5 mA cm-2 ), value is ≈30 mV dec-1 OOH. At higher polarization, continuously increases...
Kinetic and nonkinetic contributions to the Tafel slope value can be separated using a plot, where constant region indicates kinetic meaningfulness. Here, we compare values obtained from linear sweep voltammetry chronoamperometry impedance spectroscopy, apply plot various electrocatalytic reactions. We show that similar are observed different techniques under high-mass-transport conditions for oxygen evolution reaction on NiFeOOH in 0.2 M KOH. However, alkaline hydrogen CO2 reduction...
Establishing structure-reactivity relationships for specific channel orientations of zeolites is vital to developing new, superior materials various applications, including oil and gas conversion processes. Herein, a well-defined model system was developed build zeolite-channel during catalytic reaction processes, example, the methanol- ethanol-to-hydrocarbons (MTH ETH) process as well oligomerization reactions. The entrapped effluent hydrocarbons from single-oriented zeolite ZSM-5 channels...
Abstract The development of improved zeolite materials for applications in separation and catalysis requires understanding mass transport. Herein, diffusion single molecules is tracked the straight sinusoidal channels industrially relevant ZSM‐5 zeolites using a combination single‐molecule localization microscopy uniformly oriented thin films. Distinct motion behaviors are observed with same geometry, suggesting heterogeneous guest–host interactions. Quantification heterogeneities suggests...
For electrocatalysts with a layered structure, ion intercalation is common phenomenon. Gaining reliable information about the of ions from electrolyte indispensable for better understanding catalytic performance these electrocatalysts. Here, we take holistic approach following processes by studying dynamics catalyst, water molecules, and during using operando soft X-ray absorption spectroscopy (XAS). Sodium oxygen K-edge nickel L-edge spectra were used to investigate Na+ in Ni0.8Fe0.2Ox...
Abstract The efficiency of electrolysis is reduced due to the sluggish oxygen evolution reaction (OER). Besides catalyst properties, electrocatalytic activity also depends on interaction electrocatalyst with electrolyte. Here, we show that addition small amounts Li + Fe‐free NaOH or KOH electrolytes activates NiFeOOH for OER compared single‐cation electrolytes. Moreover, activation was maintained when solution returned pure NaOH. Importantly, origin by cations primarily non‐kinetic in...
The chemical industry has exploited zeolite shape selectivity for more than 50 years, yet our fundamental understanding remains incomplete. Herein, the channel geometry-reactive intermediate relationships are studied in detail using anisotropic ZSM-5 crystals methanol-to-hydrocarbon (MTH) process, and advanced magic-angle spinning solid-state NMR (ssNMR) spectroscopy. utilization of enabled preferential formation reaction intermediates single-orientation channels, as revealed by molecular...
Abstract A large variety of nickel‐based catalysts has been investigated for the oxygen evolution reaction (OER) in alkaline media. However, their reported activity, as well Tafel slope values, vary greatly. To understand this variation, we studied electrodeposited Ni 80 Fe 20 OOH with different loadings at varying rotation rates, hydroxide concentrations, or without sonication. We show that, low current density (<5 mA cm −2 ), value is ≈30 mV dec −1 OOH. At higher polarization,...
Abstract Establishing structure–reactivity relationships for specific channel orientations of zeolites is vital to developing new, superior materials various applications, including oil and gas conversion processes. Herein, a well‐defined model system was developed build zeolite‐channel during catalytic reaction processes, example, the methanol‐ ethanol‐to‐hydrocarbons (MTH ETH) process as well oligomerization reactions. The entrapped effluent hydrocarbons from single‐oriented zeolite ZSM‐5...
Carbon-supported palladium (Pd/C) catalysts often display broad or multimodal Pd particle size distributions detrimental for their performance. Therefore, the formation of large particles during preparation should be better understood and avoided. We prepared with up to 10 wt% supported on oxygen-functionalized carbon nanotubes activated via liquid-phase reduction. It was inferred that small (∼1 nm) were formed from ions adsorbed carbon. At higher loadings, 65% ended in larger (>10 probably...
Abstract The development of improved zeolite materials for applications in separation and catalysis requires understanding mass transport. Herein, diffusion single molecules is tracked the straight sinusoidal channels industrially relevant ZSM‐5 zeolites using a combination single‐molecule localization microscopy uniformly oriented thin films. Distinct motion behaviors are observed with same geometry, suggesting heterogeneous guest–host interactions. Quantification heterogeneities suggests...
Abstract The chemical industry has exploited zeolite shape selectivity for more than 50 years, yet our fundamental understanding remains incomplete. Herein, the channel geometry–reactive intermediate relationships are studied in detail using anisotropic ZSM‐5 crystals methanol‐to‐hydrocarbon (MTH) process, and advanced magic‐angle spinning solid‐state NMR (ssNMR) spectroscopy. utilization of enabled preferential formation reaction intermediates single‐orientation channels, as revealed by...
Abstract Die Effizienz der Elektrolyse wird durch die träge Sauerstoffentwicklung (OER) verringert. Neben den Katalysatoreigenschaften hängt elektrokatalytische Aktivität auch von Interaktion des Elektrokatalysators mit dem Elektrolyten ab. Hier zeigen wir, dass Zugabe kleiner Mengen Li + zu eisenfreien NaOH‐ oder KOH‐Elektrolyten NiFeOOH für OER aktiviert, verglichen monokationischen Elektrolyten. Außerdem blieb aktivierte Zustand erhalten, wenn reiner NaOH zurück gewechselt wurde. Wichtig...
Conclusion(s):Congenital FVII deficiency is associated with a spectrum of phenotypes and genotypes.Identifying characteristic mutation may be essential to establishing diagnosis, especially among patients bleeding tendencies normal activity levels.Inheritance pattern was not clinical severity in our cohort but larger studies are needed.
Die Beziehung von Zeolithkanalgeometrie und Reaktionsintermediaten bei der Umwandlung Methanol in Kohlenwasserstoffe wurde durch Festkörper-NMR-Spektroskopie untersucht. Wie M. Baldus, B. Weckhuysen et al. ihrem Forschungsartikel auf S. 20199 beschreiben, begünstigen ausgedehntere, gerade Zeolithkanäle den aromatischen Zyklus etwas steifere, sinusförmige Olefin-Zyklus. Asymmetrische Synthese Photophysik Heterogene Katalyse Wirkstofftransport
Oxidative CouplingIn their Communication on page 15468, C. Gerleve and A. Studer report the transition-metal-free oxidative cross-coupling of tetraarylborates to generate biaryls by using organic oxidants. ElectrofreezingElectrofreezing experiments super-cooled water with different ions pyroelectric crystals are described D. Harries, M. Lahav, I. Lubomirsky et al. in 15575.HCO 3 À elevate icing temperature, H O þ reduces it.Photochromic Oscillators In 15590, E. Prochµzkovµ, Cigµn ˇet present...