What are the main components of industrial ammonia catalysts?

The main components of industrial ammonia catalysts are typically iron, cobalt, and molybdenum. These elements serve as the active centers of the catalyst and play a crucial role in promoting the ammonia synthesis reaction. Iron is the most commonly used component of these catalysts due to its cost-effectiveness, ready availability, and stability. Cobalt and molybdenum are often used in conjunction with iron to enhance the catalyst's performance, increasing its activity and selectivity.