5 papers
Bubble-induced versus thermodynamic voltage losses during pressurized alkaline water electrolysis
Hannes Rox, Feng Liang, Robert Baumann +6
Understanding how bubbles influence the efficiency of water electrolysis is crucial to achieve economically competitive hydrogen, generated by renewable energy sources, such as win…
Monitoring of Fluid Transport in Low Temperature Water Electrolyzers and Fuel Cells: Emerging Technologies and Future Prospects
Zehua Dou, Laura Tropf, Tobias Lappan +7
Low temperature water electrolyzers (LTWEs) and low temperature hydrogen fuel cells (LTFCs) present a promising technological strategy for the productions and usages of green hydro…
Scanning Acoustic Microscopy for Quantifying Bubble Evolution in Alkaline Water Electrolyzers
Zehua Dou, Hannes Rox, Zyzi Ramos +8
Improved understanding of gas/liquid transport in electrochemical gas-evolving systems is increasingly demanded for optimizing device performance. However, high-resolution measurem…
Boosting electrode performance and bubble management via Direct Laser Interference Patterning
Hannes Rox, Fabian Ränke, Jonathan Mädler +9
Laser-structuring techniques like Direct Laser Interference Patterning show great potential for optimizing electrodes for water electrolysis. Therefore, a systematic experimental s…
WhY shape matters: Hydrodynamics of a Y-shaped membraneless electrolyzer
Karl Schoppmann, Hannes Rox, Erik Frense +4
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…