Emanuel Billeter
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View article: Mechanistic Insights into Ni₅Ga₃ Thin Film Catalysts: An Ambient Pressure XPS and DFT Study
Mechanistic Insights into Ni₅Ga₃ Thin Film Catalysts: An Ambient Pressure XPS and DFT Study Open
The intermetallic compound δ-Ni₅Ga₃ has emerged as a promising catalyst for CO2 hydrogenation to methanol, offering low-pressure operation, high selectivity, and enhanced stability compared to conventional Cu/ZnO catalysts. However, the fu…
View article: Weakening surface hydrogen to enhance permeation in hydrogen selective membranes
Weakening surface hydrogen to enhance permeation in hydrogen selective membranes Open
Hydrogen selective metallic membranes made of palladium and its alloys are superior to membranes made of other metallic materials due to their unique surface properties. However, the prohibitive cost of Pd has prevented their widespread ap…
View article: Why Hydrogen Dissociation Catalysts do not Work for Hydrogenation of Magnesium
Why Hydrogen Dissociation Catalysts do not Work for Hydrogenation of Magnesium Open
Provision of atomic hydrogen by hydrogen dissociation catalysts only moderately accelerates the hydrogenation rate of magnesium. They shed light on this well‐known but technically challenging fact through a combined approach using an uncon…
View article: Hard X-ray photoelectron spectroscopy reveals self-organized structures of electrocatalytic nickel oxy-hydroxides
Hard X-ray photoelectron spectroscopy reveals self-organized structures of electrocatalytic nickel oxy-hydroxides Open
Alkaline water electrolysis represents one of the simplest methods employed for renewable hydrogen production, reaching high conversion efficiency utilizing cheap and abundant transition metals such as nickel and its alloys. The outstandin…
View article: Hard X-ray photoelectron spectroscopy reveals self-organized structures of electrocatalytic nickel oxy-hydroxides
Hard X-ray photoelectron spectroscopy reveals self-organized structures of electrocatalytic nickel oxy-hydroxides Open
Dataset of Hard X-ray photoelectron spectroscopy reveals self-organized structures of electrocatalytic nickel oxy-hydroxides
View article: Hydrogen Transport and Evolution in Ni‐MH Batteries by Neutron Imaging
Hydrogen Transport and Evolution in Ni‐MH Batteries by Neutron Imaging Open
Efficiency losses due to side reactions are one of the main challenges in battery development. Despite providing valuable insights, the results of standard analysis on the individual components cannot be simply extrapolated to the full ope…
View article: Synthesis and Electronic Structure of Mid-Infrared Absorbing Cu<sub>3</sub>SbSe<sub>4</sub> and Cu<sub><i>x</i></sub>SbSe<sub>4</sub> Nanocrystals
Synthesis and Electronic Structure of Mid-Infrared Absorbing Cu<sub>3</sub>SbSe<sub>4</sub> and Cu<sub><i>x</i></sub>SbSe<sub>4</sub> Nanocrystals Open
Aliovalent I-V-VI semiconductor nanocrystals are promising candidates for thermoelectric and optoelectronic applications. Famatinite Cu3SbSe4 stands out due to its high absorption coefficient and narrow band gap in the mid-infrared spectra…
View article: Sorption kinetics in metal hydrides by leaky coating
Sorption kinetics in metal hydrides by leaky coating Open
The 3D geometry of a hydrogen absorbing metal grain (Pd) is mimicked by a membrane made of the metal with identical properties, which is sealed on one side with a hydrogen semi-impermeable surface (Cu). The hydrogen loss through the sealed…
View article: Bulk Thermodynamics Determines Surface Hydrogen Concentration in Membranes
Bulk Thermodynamics Determines Surface Hydrogen Concentration in Membranes Open
The functioning of hydrogen selective metal membranes relies on the fine‐tuned interaction of their surfaces with the inner bulk. The link between hydrogen permeation and surface concentration is unveiled using a novel combination of thin …
View article: Dataset to "Bulk thermodynamics determines surface hydrogen concentrations in membranes"
Dataset to "Bulk thermodynamics determines surface hydrogen concentrations in membranes" Open
Dataset to "Bulk thermodynamics determines surface hydrogen concentrations in membranes" as published in Advanced Materials Interfaces
View article: Dataset to "Bulk thermodynamics determines surface hydrogen concentrations in membranes"
Dataset to "Bulk thermodynamics determines surface hydrogen concentrations in membranes" Open
Dataset to "Bulk thermodynamics determines surface hydrogen concentrations in membranes" as published in Advanced Materials Interfaces
View article: Dataset to "Sorption kinetics in metal hydrides by leaky coating"
Dataset to "Sorption kinetics in metal hydrides by leaky coating" Open
Rawdata to the figures in "Sorption kinetics in metal hydrides by leaky coating" published in the International Journal of Hydrogen Energy
View article: Dataset to "Sorption kinetics in metal hydrides by leaky coating"
Dataset to "Sorption kinetics in metal hydrides by leaky coating" Open
Rawdata to the figures in "Sorption kinetics in metal hydrides by leaky coating" published in the International Journal of Hydrogen Energy
View article: Imaging the Chemistry of Materials Kinetics
Imaging the Chemistry of Materials Kinetics Open
The kinetics of most of chemical energy storage and conversion processes is rate-limited by the mass transport through matter. There is an uncertainty on the corresponding kinetic models, especially if based solely on kinetic theory. Hence…
View article: Biomimetic Light‐Driven Aerogel Passive Pump for Volatile Organic Pollutant Removal
Biomimetic Light‐Driven Aerogel Passive Pump for Volatile Organic Pollutant Removal Open
Inspired by the solar‐light‐driven oxygen transportation in aquatic plants, a biomimetic sustainable light‐driven aerogel pump with a surface layer containing black manganese oxide (MnO 2 ) as an optical absorber is developed. The flow int…
View article: Short-Lived Interfaces in Energy Materials
Short-Lived Interfaces in Energy Materials Open
The kinetics of most chemical energy storage/conversion systems depend on the mass transport through matter, which is rate-limited by various kinetic barriers. The distinction of the barriers by static and dynamic interfaces helps in reduc…
View article: Dataset to "Surface Properties of the Hydrogen–Titanium System"
Dataset to "Surface Properties of the Hydrogen–Titanium System" Open
Data of " Surface Properties of the Hydrogen−Titanium System" published in the Journal of Physical Chemistry C, 2021 DOI: 10.1021/acs.jpcc.1c08635
View article: Surface Properties of the Hydrogen–Titanium System
Surface Properties of the Hydrogen–Titanium System Open
Titanium is an excellent getter material, catalyzes gas-solid reactions such as hydrogen absorption in lightweight metal hydrides and complex metal hydrides and has recently been shown as a potential ammonia synthesis catalyst. However, kn…
View article: Dataset to "Surface Properties of the Hydrogen–Titanium System"
Dataset to "Surface Properties of the Hydrogen–Titanium System" Open
Data of " Surface Properties of the Hydrogen−Titanium System" published in the Journal of Physical Chemistry C, 2021 DOI: 10.1021/acs.jpcc.1c08635
View article: Cataluminescence in Er‐Substituted Perovskites
Cataluminescence in Er‐Substituted Perovskites Open
Thermophotovoltaic devices have promising applications for energy conversion. However, current conversion efficiency of chemical energy to light is very low, limited by the competing process of heat dissipation released as black body radia…
View article: Dataset to "Hydrogen induced trap states in TiO2 probed by resonant X-ray photoemission"
Dataset to "Hydrogen induced trap states in TiO2 probed by resonant X-ray photoemission" Open
Dataset to "Hydrogen induced trap states in TiO2 probed by resonant X-ray photoemission" as published in Proceedings of the International Conference on X-Ray Lasers 2020
View article: Dataset to "Hydrogen induced trap states in TiO2 probed by resonant X-ray photoemission"
Dataset to "Hydrogen induced trap states in TiO2 probed by resonant X-ray photoemission" Open
Dataset to "Hydrogen induced trap states in TiO2 probed by resonant X-ray photoemission" as published in Proceedings of the International Conference on X-Ray Lasers 2020
View article: Hydrogen induced trap states in TiO2 probed by resonant X-ray photoemission
Hydrogen induced trap states in TiO2 probed by resonant X-ray photoemission Open
The standard approach to surface analysis is X-ray photoelectron spectroscopy (XPS), which is used to follow electronic structure changes of the catalyst material TiO2 upon hydrogenation, however, without conclusion whether the effect can …
View article: Hydrogen in tungsten trioxide by membrane photoemission and density functional theory modeling
Hydrogen in tungsten trioxide by membrane photoemission and density functional theory modeling Open
The measurement of hydrogen-induced changes in the electronic structure of transition metal oxides by x-ray photoelectron spectroscopy is a challenging endeavor, since no photoelectron can be unambiguously assigned to hydrogen. The H-induc…
View article: Dataset to "Hydrogen in tungsten trioxide by membrane photoemission and density functional theory modeling"
Dataset to "Hydrogen in tungsten trioxide by membrane photoemission and density functional theory modeling" Open
Dataset to "Hydrogen in tungsten trioxide by membrane photoemission and density functional theory modeling" as published in Physical Review B, 103 (2021), 205304
View article: Dataset to "Hydrogen in tungsten trioxide by membrane photoemission and density functional theory modeling"
Dataset to "Hydrogen in tungsten trioxide by membrane photoemission and density functional theory modeling" Open
Dataset to "Hydrogen in tungsten trioxide by membrane photoemission and density functional theory modeling" as published in Physical Review B, 103 (2021), 205304
View article: Magnetic field enhancement of electrochemical hydrogen evolution reaction probed by magneto-optics
Magnetic field enhancement of electrochemical hydrogen evolution reaction probed by magneto-optics Open
External magnetic fields affect various electrochemical processes and can be used to enhance the efficiency of the electrochemical water splitting reaction. However, the driving forces behind this effect are poorly understood due to the an…