Catalytic 3D-printed systems based on clays for oxidation reactions

N.L. COURTALÓN; E.D. BANÚS; J.P. BORTOLOZZI

Santa Fe

Workshop; French Argentinean Workshop on Heterogeneous Catalysis; 2023

Instituto de Investigaciones en Catálisis y Petroquímica

Atmosphericpollution impacts in public health causing many diseases and contributing toclimate change. Two of the major pollutants are carbon monoxide (CO) and sootor particulate matter (PM). These compounds are emitted from internalcombustion engines [1] and they can be removed from the gas exhaust byoxidation reactions.In the lastdecade, additive manufacturing had a wide spread given by the accessibility ofthe 3D-printers. This technique enables to obtain objects by pilingtwo-dimensional layers with a specific shape. Currently, a wide variety ofdifferent 3D-printing technologies could be found. Among them, “robocasting” or“direct ink writing” is of particular interest, since it makes possible toprint materials such as gels and pastes [2]. Heterogeneous catalysts could beimproved by 3D printing [3] since it allows to obtain structured systems withcomplex and controlled geometry.In thiscontext, the aim of this work is to develop a low-cost heterogeneous catalyticsystem by robocasting, active in the CO oxidation and soot combustion. Thesesystems are based on a commercial clay adapted to be 3D printed, being Co andCe the active elements.