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Direct Assembly of Beta Zeolite Seeds into Mesoporous Nanomaterials: Structural Characterization and Catalytic Application
Date Issued
2015
Date
2015
Author(s)
Chen, Tzu-Ying
Abstract
A large-area two-dimensional mesostructure with well-ordered mesochannels, especially for supported mesoporous silica thin films (MSTFs) with vertical mesochannels, have drawn lots of attention in potential applications. However, due to dissimilarity of two interfaces, micelle-templating method usually leads to parallel aligned channels on substrates. Herein we introduce an oil agent into synthetic solution for effectively tuning interfacial interaction between the substrate and solution. As a result, the oil agent here serves as two key roles: (i) one is to tune the orientation of mesochannels perpendicular to the substrate. (ii) The other is to controll the mesochannel sizes in the range of 4-6 nm. Thus, a series of pore-size controllable silica thin films can be obtained in the size of 1
Subjects
Mesoporous silica
vertical channels
thin film
beta zeolite
acidity
Type
thesis
File(s)
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Name
ntu-104-R02223182-1.pdf
Size
23.32 KB
Format
Adobe PDF
Checksum
(MD5):731e0ce61a95c4bf14602496a02fb102