[EN] In the context of diminishing atmospheric CO2 emissions, there is an urgent need to develop processes that can be carried out at a scale commensurate with appropriate CO2 volumes. One possible reaction is the transformation of CO2 to methane (Sabatier reaction). Due to its chemical stability, catalytic CO2 hydrogenation to methane is carried out at temperatures of 450 degrees C or higher and pressures above 5 bars, thus, requiring a significant energy input. One alternative possibility to conventional thermal catalysis is the use of solar light as the primary energy, performing the photocatalytic CO2 hydrogenation. In this broad context, the present study shows the photocatalytic activity of nanometric films of oriented Ru nanoparticles (NPs) strongly grafted on defective graphene. These graphene films (thinner than 20 nm) containing Ru NPs nanoplatelets (less than 2 nanomol(Ru)/cm(2)) are among the most active photocatalysts ever prepared for CO2 hydrogenation and operate through photoinduced charge separation ; Support by the Ministerio de Ciencia e Innovacion (Severo Ochoa and RTI2018-098237-B-C21) and Generalitat Valenciana (Prometeo 2017/083) was acknowledged. Thanks are due to Galicia Supercomputing Center. A.A. thanks UEMF (Euromed Unniversity Fes) and UPV for an Erasmus+ 2019-1-ES01-KA107-062073 Scholarship. A.P. thanks the Spanish Ministry for a Ramon y Cajal research associate contract. ; Anouar, A.; García-Aboal, R.; Atienzar Corvillo, PE.; Franconetti, A.; Katir, N.; El Kadib, A.; Primo Arnau, AM. (2022). Remarkable Activity of 002 Facet of Ruthenium Nanoparticles Grown on Graphene Films on the Photocatalytic CO2 Methanation. Advanced Sustainable Systems. 6(5):1-10. https://doi.org/10.1002/adsu.202100487 ; 1 ; 10 ; 6 ; 5