What are the Challenges Associated with Pt and Pd Catalysts?
1. Cost: Both Pt and Pd are expensive due to their scarcity and high demand. This makes the development of cost-effective and efficient catalysts a significant challenge. 2. Deactivation: Pt and Pd catalysts can undergo deactivation due to sintering, poisoning, or fouling. Sintering involves the agglomeration of metal particles, which reduces the active surface area. Poisoning occurs when impurities bind strongly to the active sites, rendering them inactive. 3. Environmental Impact: The mining and refining of Pt and Pd have environmental implications. Sustainable practices and recycling of these metals are crucial to minimize their environmental footprint.
