• 文献标题:   Hierarchical Porous Zeolite ZSM-5/Graphene Nanosheets as Robust Heterogeneous Acid Catalysts
  • 文献类型:   Article
  • 作  者:   ZHANG HN, WANG JY, LIU YZ, CHEN JL, WANG H, HUANG JL, WANG JZ
  • 作者关键词:   acid catalyst, graphene, zeolite zsm5
  • 出版物名称:   CHEMISTRYSELECT
  • ISSN:   2365-6549
  • 通讯作者地址:   Chinese Acad Sci
  • 被引频次:   2
  • DOI:   10.1002/slct.201700993
  • 出版年:   2017

▎ 摘  要

Quasi-2D hierarchical porous nanosheets of zeolite ZSM-5/graphene were synthesized as a robust heterogeneous acid catalyst. Electrochemically exfoliated graphene has strong interfacial effects on forming featured quasi-2D layer of irregular 2-50 nm pore size of mesoporous ZSM-5 interconnected with 2D layer of 0.7 nm microporous zeolite. Graphene could support structural, compositional and morphological modifications of ZSM-5 with enhanced BrOnsted acidic sites accessible as well as improved mass transfer and stability. The ZSM-5/graphene catalyst with 24wt% graphene exhibited superior catalytic activity for several organic reactions including some bulky molecules, and it can be used repetitively over 15 times without a significant loss of activity.