Hexagonal mesoporous silica with noodle-like shape

Wei Jye Wang; Yu Wen Chen; Mon Dar Chou

doi:10.1023/B:JOPO.0000027362.22140.35

Hexagonal mesoporous silica with noodle-like shape

Wei Jye Wang, Yu Wen Chen, Mon Dar Chou

Department of Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Hexagonal mesoporous silica (HMS) was prepared at ambient temperature by using dodecylamine (DDA) as the surfactant and tetraethyl orthosilicate (TEOS) as the silica precursor. The HMS materials were characterized by X-ray powder diffraction, N₂ adsorption/desorption, scanning electron microscopy and transmission electron microscopy. The samples prepared at various addition rates of TEOS and various alcohol/water (R/H) ratios were investigated. As the addition rate of TEOS decreased, the size of HMS particles increased and the textural porosity decreased. Non-alcoholic solution was required to prepare non-spherical particles. The HMS with noodle-like structures was prepared in the absence of alcoholic solvent. These noodle-like particles were about 0.1μm in diameter and about submicrometer to several micrometers in length.

Original language	English
Pages (from-to)	71-78
Number of pages	8
Journal	Journal of Porous Materials
Volume	11
Issue number	2
DOIs	https://doi.org/10.1023/B:JOPO.0000027362.22140.35
State	Published - Mar 2004

Keywords

Hexagonal mesoporous silica
Mesoporous material
Molecular sieve
Silica
Surfactant

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10.1023/B:JOPO.0000027362.22140.35

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title = "Hexagonal mesoporous silica with noodle-like shape",

abstract = "Hexagonal mesoporous silica (HMS) was prepared at ambient temperature by using dodecylamine (DDA) as the surfactant and tetraethyl orthosilicate (TEOS) as the silica precursor. The HMS materials were characterized by X-ray powder diffraction, N2 adsorption/desorption, scanning electron microscopy and transmission electron microscopy. The samples prepared at various addition rates of TEOS and various alcohol/water (R/H) ratios were investigated. As the addition rate of TEOS decreased, the size of HMS particles increased and the textural porosity decreased. Non-alcoholic solution was required to prepare non-spherical particles. The HMS with noodle-like structures was prepared in the absence of alcoholic solvent. These noodle-like particles were about 0.1μm in diameter and about submicrometer to several micrometers in length.",

keywords = "Hexagonal mesoporous silica, Mesoporous material, Molecular sieve, Silica, Surfactant",

author = "Wang, {Wei Jye} and Chen, {Yu Wen} and Chou, {Mon Dar}",

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T1 - Hexagonal mesoporous silica with noodle-like shape

AU - Wang, Wei Jye

AU - Chen, Yu Wen

AU - Chou, Mon Dar

N1 - Funding Information: The financial support from the National Science Council, Taiwan, ROC, is highly appreciated.

PY - 2004/3

Y1 - 2004/3

N2 - Hexagonal mesoporous silica (HMS) was prepared at ambient temperature by using dodecylamine (DDA) as the surfactant and tetraethyl orthosilicate (TEOS) as the silica precursor. The HMS materials were characterized by X-ray powder diffraction, N2 adsorption/desorption, scanning electron microscopy and transmission electron microscopy. The samples prepared at various addition rates of TEOS and various alcohol/water (R/H) ratios were investigated. As the addition rate of TEOS decreased, the size of HMS particles increased and the textural porosity decreased. Non-alcoholic solution was required to prepare non-spherical particles. The HMS with noodle-like structures was prepared in the absence of alcoholic solvent. These noodle-like particles were about 0.1μm in diameter and about submicrometer to several micrometers in length.

AB - Hexagonal mesoporous silica (HMS) was prepared at ambient temperature by using dodecylamine (DDA) as the surfactant and tetraethyl orthosilicate (TEOS) as the silica precursor. The HMS materials were characterized by X-ray powder diffraction, N2 adsorption/desorption, scanning electron microscopy and transmission electron microscopy. The samples prepared at various addition rates of TEOS and various alcohol/water (R/H) ratios were investigated. As the addition rate of TEOS decreased, the size of HMS particles increased and the textural porosity decreased. Non-alcoholic solution was required to prepare non-spherical particles. The HMS with noodle-like structures was prepared in the absence of alcoholic solvent. These noodle-like particles were about 0.1μm in diameter and about submicrometer to several micrometers in length.

KW - Hexagonal mesoporous silica

KW - Mesoporous material

KW - Molecular sieve

KW - Silica

KW - Surfactant

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Hexagonal mesoporous silica with noodle-like shape

Abstract

Keywords

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