Premium
Hierarchical Porous Zeolite ZSM‐5/Graphene Nanosheets as Robust Heterogeneous Acid Catalysts
Author(s) -
Zhang Huinian,
Wang Junying,
Liu Yongzhi,
Chen Jialing,
Wang Hao,
Huang Jianlin,
Wang Junzhong
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700993
Subject(s) - graphene , zeolite , microporous material , catalysis , mesoporous material , materials science , brønsted–lowry acid–base theory , porosity , chemical engineering , zsm 5 , layer (electronics) , nanotechnology , chemistry , organic chemistry , composite material , engineering
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 Brønsted 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.