Harmful Gas Reduction Performance of H₂-SCR according to Catalyst Substrate CPSI

Key Points

• The study aims to evaluate harmful gas reduction performance of H₂-SCR based on different catalyst substrates (CPSI).
• H₂-SCR catalysts were synthesized using a co-precipitation method.
• Different CPSIs (600 and 900) were analyzed under fresh and aged conditions.
• Characterization techniques included SEM-EDX, TEM, BET surface area, and H₂-TPR.
• NOx and CO reduction performance were assessed at various temperatures.
• CPSI 600 and 900 exhibited similar NOx conversion rates under fresh conditions.
• The H₂-SCR catalyst with CPSI 600 showed a 3-23% improvement in NOx/CO reduction at 100°C.
• Under aging conditions, CPSI 600 maintained the highest NOx reduction (4-12%) and good durability.