1. Reduced Catalyst Efficiency: Loss of active metal sites diminishes catalytic performance over time. 2. Product Contamination: Leached palladium can contaminate the final product, necessitating additional purification steps. 3. Economic Costs: Loss of precious palladium increases the cost of catalyst replacement and recovery. 4. Environmental Concerns: Palladium leaching poses environmental risks due to the toxicity and scarcity of the metal.
