Hannes Rox
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View article: Monitoring of Fluid Transport in Low Temperature Water Electrolyzers and Fuel Cells: Emerging Technologies and Future Prospects
Monitoring of Fluid Transport in Low Temperature Water Electrolyzers and Fuel Cells: Emerging Technologies and Future Prospects Open
Low temperature water electrolyzers (LTWEs) and low temperature hydrogen fuel cells (LTFCs) present a promising technological strategy for the productions and usages of green hydrogen energy towards a net-zero world. However, the interacti…
View article: Scanning acoustic microscopy for quantifying bubble evolution in alkaline water electrolyzers
Scanning acoustic microscopy for quantifying bubble evolution in alkaline water electrolyzers Open
View article: Scanning acoustic microscopy for quantifying bubble evolution in alkaline water electrolyzers
Scanning acoustic microscopy for quantifying bubble evolution in alkaline water electrolyzers Open
View article: Dual wetting electrode surfaces for alkaline water electrolysis
Dual wetting electrode surfaces for alkaline water electrolysis Open
Nickel electrodes are widely used in alkaline water electrolysis, yet the remaining electrode overpotentials are leading to significant losses in electrochemical performance. These are partly due to the electrogenerated bubbles growing at …
View article: Solutal Marangoni convection at growing oxygen bubbles during water electrolysis
Solutal Marangoni convection at growing oxygen bubbles during water electrolysis Open
Electrochemical water splitting leads to variations in the electrolyte concentration which might impact the surface tension at both hydrogen and oxygen bubbles. Although the potentially resulting solutal Marangoni convection has been predi…
View article: WhY shape matters: Hydrodynamics of a Y-shaped membraneless electrolyzer
WhY shape matters: Hydrodynamics of a Y-shaped membraneless electrolyzer Open
View article: Boosting Electrode Performance and Bubble Management via Direct Laser Interference Patterning
Boosting Electrode Performance and Bubble Management via Direct Laser Interference Patterning Open
Laser-structuring techniques like Direct Laser Interference Patterning show great potential for optimizing electrodes for water electrolysis. Therefore, a systematic experimental study is performed to analyze the influence of the spatial p…
View article: Boosting electrode performance and bubble management via Direct Laser Interference Patterning
Boosting electrode performance and bubble management via Direct Laser Interference Patterning Open
Laser-structuring techniques like Direct Laser Interference Patterning show great potential for optimizing electrodes for water electrolysis. Therefore, a systematic experimental study based on statistical design of experiments is performe…
View article: WhY shape matters: Hydrodynamics of a Y-shaped membraneless electrolyzer
WhY shape matters: Hydrodynamics of a Y-shaped membraneless electrolyzer Open
A novel Y-shaped membraneless flow-through electrolyzer is introduced to achieve a homogeneous electrochemical reaction across the entire electrode in a cost-efficient cell design with effective product separation. Numerical simulations of…
View article: Bubble size distribution and electrode coverage at porous nickel electrodes in a novel 3-electrode flow-through cell
Bubble size distribution and electrode coverage at porous nickel electrodes in a novel 3-electrode flow-through cell Open
A novel 3-electrode cell type is introduced to run parametrical studies of H$_2$ evolution in an alkaline electrolyte on porous electrodes. Electrochemical methods combined with a high-speed optical measurement system are applied simultane…
View article: "CFD-grade" Experimental data for Solid-liquid Flow in a Stirred Tank
"CFD-grade" Experimental data for Solid-liquid Flow in a Stirred Tank Open
A solid-liquid flow in stirred tanks occurs frequently in different branches of process engineering where particles need to be suspended in a liquid. Computational Fluid Dynamics (CFD) simulations of this type of flow on industrial scales …