A5005360851- Electrocatalysts for Energy Conversion
- CO2 Reduction Techniques and Catalysts
- Ionic liquids properties and applications
- Catalytic Processes in Materials Science
- Fuel Cells and Related Materials
- Catalysis and Oxidation Reactions
- Electrochemical Analysis and Applications
- Advanced Materials Characterization Techniques
- Advancements in Solid Oxide Fuel Cells
- X-ray Spectroscopy and Fluorescence Analysis
- Chemistry and Chemical Engineering
- Electron and X-Ray Spectroscopy Techniques
- Hybrid Renewable Energy Systems
- Electronic and Structural Properties of Oxides
- Advanced Chemical Sensor Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Catalysts for Methane Reforming
- Advanced battery technologies research
- Conducting polymers and applications
Danish Technological Institute
2023-2024
Society for Chemical Engineering and Biotechnology
2024
Technical University of Denmark
2015-2019
Understanding the surface reactivity of CO, which is a key intermediate during electrochemical CO2 reduction, crucial for development catalysts that selectively target desired products conversion to fuels and chemicals. In this study, custom-designed cell utilized investigate planar polycrystalline copper as an electrocatalyst CO reduction under alkaline conditions. Seven major have been observed including various hydrocarbons oxygenates are also common products, strongly indicating reaction...
Oxide-derived copper (OD-Cu) electrodes exhibit unprecedented CO reduction performance towards liquid fuels, producing ethanol and acetate with >50% Faradaic efficiency at -0.3 V (vs. RHE). By using static headspace-gas chromatography for phase analysis, we identify acetaldehyde as a minor product key intermediate in the electroreduction of to on OD-Cu electrodes. Acetaldehyde is produced ≈5% -0.33 We show that forms low steady-state concentrations, free difficult detect alkaline solutions...
By live-monitoring Cu and Cu2O Bragg peaks from the surface of a polycrystalline electrode while scanning open-circuit potential to CO reduction potentials, we show that near-surface region is fully converted metallic phase at approximately +0.3 V vs RHE.
Cu is the only monometallic electrocatalyst to produce highly reduced products from CO2 selectively because of its intermediate binding CO. We investigate performance polycrystalline for electroreduction CO in alkaline media (0.1 M KOH) at low overpotentials (−0.4 −0.6 V vs RHE). find that active these potentials. The overall reduction rates are comparable those nanostructured forms material, albeit with a distinct product distribution. While favor alcohols, produces greater amounts C2 and...
Abstract Within the Recycalyse project different research organization and industrial partners worked together to develop catalysts for oxygen evolution reaction proton exchange membrane electrolysis that reduce use of critical raw materials. The are applied polymer electrolyte membranes via a direct coating process tested both in single cells at stack level. In order dependence on material imports Europe long term, recycling is considered catalysts, electrodes entire system.
Abstract Oxide‐derived copper (OD‐Cu) electrodes exhibit unprecedented CO reduction performance towards liquid fuels, producing ethanol and acetate with >50 % Faradaic efficiency at −0.3 V (vs. RHE). By using static headspace‐gas chromatography for phase analysis, we identify acetaldehyde as a minor product key intermediate in the electroreduction of to on OD‐Cu electrodes. Acetaldehyde is produced ≈5 −0.33 We show that forms low steady‐state concentrations, free difficult detect alkaline...
Proton exchange membrane water electrolysis (PEMWE) is a promising technology to produce hydrogen directly from renewable electricity sources due its high power density and potential for dynamic operation. Widespread application of PEMWE is, however, currently limited cost low efficiency, which loading expensive iridium catalyst OER overpotential, respectively, are important reasons. In this study, we synthesize highly dispersed IrRu nanoparticles (NPs) supported on antimony-doped tin oxide...
auspicious technology for hydrogen production.The article provides a solution to the question of how this can be optimized in terms costs......
In this study, we have investigated the stability of antimony-doped tin oxide (ATO) supported IrRu nanoparticles, as catalyst for oxygen evolution reaction (OER). Conventional tests using a rotating disc electrode (RDE) are demonstrated to lead distorted results, fact typically addressed massive formation O2 gas bubbles which block catalytic active sites. agreement with previous our investigations suggest that observed decay in current density is not be confused degradation. To mitigate...
With the greater implementation of intermittent renewable energy sources, such as wind and solar power, efficient storage technologies need to be developed. In addition, alternative carriers fossil fuels found in order decrease emission CO 2 from transport sector. A highly promising means doing so would hydrogenate via electrolysis into fuels, methanol or ethanol; such, it constitute a carbon-neutral carrier. [1] Carbon dioxide could captured point fuel power plants by burning biomass. make...
Proton exchange membrane (PEM) water electrolyzers offer a very promising option to offset the environmental burden of conventional hydrogen production by splitting into high purity and oxygen without releasing carbon dioxide as by-product. However, corrosive nature process makes it dependent on expensive materials, such iridium (Ir), ruthenium (Ru) or titanium (Ti), which upscaling technology considerably more difficult [1, 2]. To ensure industrial success this technology, study mechanisms...
Currently, significant efforts are taken to find the most active and stable electrochemical oxygen evolution reaction (OER) catalyst diverting from critical raw material. However, one also needs consider new screening methods, especially with respect stability investigations where rotating disk electrode (RDE) studies not suitable. 1 Recently, we introduced a gas diffusion (GDE) setup as testing platform for OER catalysts. 2 This methodology stems fuel cell carbon layer (GDL) is used...
Almost all-successful CO 2 and reduction catalysts to higher chain carbons are based on copper, 1 however various facets pre-treatments of copper have shown give a wide variety product selectivity. 2, 3 Currently there many unanswered questions regarding active sites mechanisms thus fundamental studies essential for this reaction. This talk will focus in-situ monitoring the copper-copper oxide crystal structure at oxidative reductive potentials. Using synchrotron facilities SLAC national...