[2A01-08] International sess.(2)

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)Japanese

[2A04] CO₂ capture and selective hydrogenation to CO over Ag and K co-loaded Al₂O₃ under mild and simulated realistic conditions

○Soma Shukuya¹, Norikazu Namiki¹, Zen Maeno^1,2 (1. Kogakuin University, 2. JST PRESTO)

Keywords:

CO2 capture and reduction,reverse water gas reaction,Ag-K based dual-functional materials

We developed Ag-K/Al₂O₃ dual-functional materials (DFMs) for selective CO production via CO₂ capture in the presence of O₂ and reduction at 350°C. Unlike reported Cu-K/Al₂O₃ DFMs, which deactivate due to Cu oxidation and water formation, Ag-K/Al₂O₃ retains activity by maintaining its reduced state during O₂ exposure. Also, the amount of CO formed was maintained even in the presence of water, demonstrating practical applicability for real exhaust conditions (low temperature, O₂ presence, H₂O presence).