草簇状石墨烯片限域Pd纳米粒子及其催化应用

催化学报 , 2015, (2): 148-152. doi: 10.1016/S1872-2067(14)60256-4

草簇状石墨烯片限域Pd纳米粒子及其催化应用

刘贡钢 ^1, , 余林遇 ^2, , 朱玉超 ^3, , 郭晓光 ^4, , 周永华 ^5, , 叶红齐 ^6,

1.中南大学化学化工学院,湖南长沙,410083

2.中南大学化学化工学院,湖南长沙,410083

3.中南大学化学化工学院,湖南长沙,410083

4.中国科学院大连化学物理研究所催化基础国家重点实验室,辽宁大连,116023

5.中南大学化学化工学院,湖南长沙,410083

6.中南大学化学化工学院,湖南长沙,410083

基金项目: 国家自然科学基金(21006129,21276284和21146008)

关键词：钯催化剂 , 草簇状结构石墨烯 , 对羧基苯甲醛 , 加氢

Pd confined in grass-like graphene layers on monolithic cordierite as the catalyst for hydrogenation of 4-carboxybenzaldehyde

Keywords： Pd catalyst , Grass-like graphene , 4-Carboxybenzaldehyde , Hydrogenation

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.

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