One of the most relevant milestones of the 112CO2 project was achieved using the supported Ni-based catalyst developed by partner CSIC, in collaboration with partner UPORTO. The optimized catalytic methane splitting reactor was operated for > 5000 h at 550 ºC on stream without permanent deactivation, using the patented cyclic regeneration of the catalyst. Despite these unprecedented results, the team found that supported Fe:Ni (5:95 at%) proved to be fully stable and much more active. The cyclic carbon methanation at the interface is now used for shaving off the formed carbon particles – patent pending. Very recently, another achievement was found! An activated slab catalyst reached a top activity of 200 gH2 m-2 h-1 and a stability of >200 h at 750 °C and 1 bar. It is expected to be stable for over 8500 h (ca. 1 year) – ongoing tests.