Metal 3D printing has attracted recent attention as a cutting-edge fusion technology in the catalyst field due to advantages such as design flexibility, variety of material selection, and ease of mass production. Additionally, catalytic efficiency can be enhanced by adjusting surface functionalization and geometric structural design. Metal 3D-printed catalysts are expected to provide a new direction for catalysis research by integrating existing individual catalyst and reactor research, thereby shortening the realization of a carbon-neutral society.

Abstract

Metal 3D printing is revolutionizing the industry by enabling rapid and cost-effective production of complex metal 3D products with intricate geometries, attracting significant attention in recent years. Particularly, metal 3D-printed catalysts have emerged as a cutting-edge fusion technology that serves as both catalysts and reactors, referred to as self-catalytic reactors (SCRs). Therefore, this concept article aims to introduce the recent advancements in metal 3D printing technology in the catalyst and reactor field, and illustrate the various aspects for the rational design of self-catalytic reactors.