High Performance Tunable Catalysts Prepared by Using 3D Printing Chaparro Garnica, Cristian Yesid Bailón García, Esther Davó Quiñonero, Arantxa Da Costa, Patrick Lozano Castelló, Dolores Bueno López, Agustín 3D printing Carbon monoliths Morphology control Porosity control CO2 methanation Honeycomb monoliths are the preferred supports in many industrial heterogeneous catalysis reactions, but current extrusion synthesis only allows obtaining parallel channels. Here, we demonstrate that 3D printing opens new design possibilities that outperform conventional catalysts. High performance carbon integral monoliths have been prepared with a complex network of interconnected channels and have been tested for carbon dioxide hydrogenation to methane after loading a Ni/CeO2 active phase. CO2 methanation rate is enhanced by 25% at 300 ◦C because the novel design forces turbulent flow into the channels network. The methodology and monoliths developed can be applied to other heterogeneous catalysis reactions, and open new synthesis options based on 3D printing to manufacture tailored heterogeneous catalysts. 2021-09-30T09:11:38Z 2021-09-30T09:11:38Z 2021 journal article Chaparro-Garnica, C.Y.; Bailón-García, E.; Davó-Quiñonero, A.; Da Costa, P.; Lozano-Castelló, D.; Bueno-López, A. High Performance Tunable Catalysts Prepared by Using 3D Printing. Materials 2021, 14, 5017. https://doi.org/10.3390/ma14175017 http://hdl.handle.net/10481/70556 10.3390/ma14175017 eng http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España MDPI