What are the Challenges in Using Bimetallic and Trimetallic Catalysts?
Despite their advantages, there are challenges associated with the use of bimetallic and trimetallic catalysts. One major issue is the _complexity of synthesis_. Achieving precise control over the composition and distribution of metals can be difficult. Additionally, the _stability_ of these catalysts can be a concern, as they may undergo _segregation_ or _dealloying_ under reaction conditions. Finally, the _cost_ of precious metals often used in these catalysts can be prohibitive.