One-Step 3D Printing of Catalysts – This process is a more efficient way to produce catalysts for complex chemical reactions in a variety of industries. While 3D printing has found applications in many areas, its use as a way to control chemical reactions, or catalysis, is relatively new. Current production of 3D catalysts typically involves various methods of depositing the chemically active agents onto pre-printed structures. A 3D printing process was developed that creates a chemically active catalytic object in a single step. The method combines the structure with the chemistry in only one step using inexpensive commercial 3D printers. The structures are designed in a computer and built aer designed in a computer and built directly by shining a laser through a bath of customized resins that polymerize and harder layer by layer.