catalystcoated
Catalyst-coated refers to a surface or substrate onto which a catalytic material has been deposited to promote a chemical reaction. The coating provides the active sites for the reaction, while the underlying substrate offers mechanical support, porosity, or electrical or thermal pathways. Catalyst-coated materials are used where controlled, efficient reactions are needed and where bulk catalysts would be impractical.
Common substrates include ceramic or metallic monoliths, carbon papers or felts, porous metals, and membranes. The
Manufacturing methods include washcoating, impregnation, spray or dip-coating, electroplating, chemical vapor deposition, atomic layer deposition, and
Applications span automotive catalytic converters, where catalyst-coated monoliths reduce harmful emissions; fuel cells, with catalyst layers