催化学报 ›› 2015, Vol. 36 ›› Issue (2): 148-152.DOI: 10.1016/S1872-2067(14)60256-4

• 快讯 • 上一篇    下一篇

草簇状石墨烯片限域Pd纳米粒子及其催化应用

刘贡钢a, 余林遇a, 朱玉超a, 郭晓光b, 周永华a, 叶红齐a   

  1. a 中南大学化学化工学院, 湖南长沙410083;
    b 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
  • 收稿日期:2014-09-15 修回日期:2014-11-11 出版日期:2015-01-21 发布日期:2015-01-21
  • 通讯作者: 周永华, 叶红齐
  • 基金资助:

    国家自然科学基金(21006129, 21276284和21146008).

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

Gonggang Liua, Linyu Yua, Yuchao Zhua, Xiaoguang Guob, Yonghua Zhoua, Hongqi Yea   

  1. a College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, China;
    b State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2014-09-15 Revised:2014-11-11 Online:2015-01-21 Published:2015-01-21
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (21006129, 21276284 and 21146008).

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.

关键词: 钯催化剂, 草簇状结构石墨烯, 对羧基苯甲醛, 加氢

Abstract:

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.

Key words: Pd catalyst, Grass-like graphene, 4-Carboxybenzaldehyde, Hydrogenation