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Title: Formation of ZSM-22 Zeolite Catalytic Particles by Fusion of Elementary Nano-rods
Authors: Hayasaka, Kazuaki ×
Liang, D
Huybrechts, B
De Waele, Bart
Houthoofd, Kristof
Eloy, P
Gaigneaux, E
Van Tendeloo, G
Thybaut, J
Marin, GB
Denayer, JF
Baron, GV
Jacobs, Pierre
Kirschhock, Christine
Martens, Johan #
Issue Date: 2007
Publisher: VCH Verlagsgesellschaft
Series Title: Chemistry - a European Journal vol:13 issue:36 pages:10070-10077
Abstract: An ZSM-22 aluminosilicate zeolite was synthesized using the hydrothermal gel method at 150 8C.Products obtained after different synthesis times were characterized using various
techniques and catalytic testing.Massive formation of ZSM-22 nanocrystals occurs after only a short synthesis time,
appearing as isolated rods with a cross section of 124 nm.Nanorods have aluminum enriched at their external
surface.Later in the crystallization process nanorods align and fuse sideways,whereby the external surface is systematically converted into an internal micropore
surface.The formation of aluminum bearing micropores by the joining of nanorod surfaces is responsible for the enhanced catalytic activity. For this, the zeolite synthesis of nanoscale crystallites is ineffective for enhancing
catalytic activity.
ISSN: 0947-6539
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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