Catalytic activation of 3D printed AlSi10Mg Periodic Open Cellular Structures (POCSs) by combined dip/spin coating method for the intensification of ammonia synthesis

The present work deals with the design, manufacturing (by Laser Powder Bed Fusion), characterization, and catalytic activation (by a washcoating method) of Periodical Cellular Structures (POCS) 3D-printed in a cylindrical shape (Ø = 1cm, Length = 1.5 cm), in different materials (Al-, Cu-, Ni-alloys) and with various structural parameters (porosity, density, cell type and strut dimensions). The general aim is to intensify the ammonia synthesis throughout the development of structured catalysts with geometries that allow the integration with ammonia selective membranes in a membrane-based reactor to increase productivity at low temperatures (250-300°C) and pressure (20-25bar).