Ultra-thin palladium membranes as the basis for efficient reaction and transport processes
Ultra-thin palladium layers on porous ceramic carriers offer great potential for efficient hydrogen separation. The extremely thin layers in the nanometre range enable high hydrogen flow rates while significantly reducing the consumption of precious metals. This approach promises, on the one hand, cost-effective membranes with high efficiency and purity and, on the other hand, opens up new possibilities for reactions such as methane or methanol synthesis due to the catalytic properties of palladium. This makes it possible to combine electrolysis and catalytic processes directly, eliminating the need for additional compression steps and making the overall process significantly more economical.
The aim of the project is to develop ultra-thin noble metal membranes on capillary supports to achieve better flow and higher pressure stability. After synthesis, the membranes are tested for permeability and stability and then used in high-pressure electrolysis. They are used both for the purification of hydrogen and for feeding into directly connected chemical syntheses, such as methanation. In the project, concepts for the reactor and the sealing of the membranes are also being developed, optimal operating parameters are being defined and scaling options are being tested. A final comparison of the results with existing technologies should clarify the advantages of the new approaches.
