草簇状石墨烯片限域Pd纳米粒子及其催化应用

摘要

通过氨基离子液体改性石墨烯，并将其固载于堇青石表面，作为负载型Pd催化剂的载体。所制备的Pd催化剂经加氢老化后，表面石墨烯呈草簇状结构，将Pd纳米粒子限域于片层内，有效防止了Pd的流失和团聚。在重要的工业反应对羧基苯甲醛(4-CBA)加氢中，此结构催化剂与传统的钯碳催化剂相比，表现出很好的稳定性。%Pd nanoparticles were confined in grass‐like graphene layers on monolithic cordierite by using NH2‐ion liquid C7H14ClN3 functionalized graphene sheets. These were used as the catalyst for the hydrogenation of 4‐carboxybenzaldehyde. The catalyst exhibited high stability compared to Pd/activated carbon catalyst due to the inhibition of Pd leaching and aggregation.