In-situ studies of the formation mechanism of SBA-15

Viveka Alfredsson; H Amenitsch; Katarina Flodström; M Linden; CV Teixeira; Håkan Wennerström

In-situ studies of the formation mechanism of SBA-15

Viveka Alfredsson, H Amenitsch, Katarina Flodström, M Linden, CV Teixeira, Håkan Wennerström

Physical Chemistry

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

Abstract

The formation process of SBA-15 has been investigated by time resolved TEM, in-situ SAXS/SAXD and in-situ NMR. The synthesis was done at 35 degrees in acidic solution with tetramethylorthosilicate as the silica source and Pluronic P123 as the structure directing amphiphile. The initially formed silica-polymer composite consists of flocs of spherical micelles in a silica matrix. The micelles then coalesce forming rods that eventually pack into the ordered array of which SBA-15 consists.

Original language	English
Pages (from-to)	69-74
Journal	Studies in Surface Science and Catalysis
Volume	156
Publication status	Published - 2005

Subject classification (UKÄ)

Physical Chemistry (including Surface- and Colloid Chemistry)

Cite this

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title = "In-situ studies of the formation mechanism of SBA-15",

abstract = "The formation process of SBA-15 has been investigated by time resolved TEM, in-situ SAXS/SAXD and in-situ NMR. The synthesis was done at 35 degrees in acidic solution with tetramethylorthosilicate as the silica source and Pluronic P123 as the structure directing amphiphile. The initially formed silica-polymer composite consists of flocs of spherical micelles in a silica matrix. The micelles then coalesce forming rods that eventually pack into the ordered array of which SBA-15 consists.",

author = "Viveka Alfredsson and H Amenitsch and Katarina Flodstr{\"o}m and M Linden and CV Teixeira and H{\aa}kan Wennerstr{\"o}m",

year = "2005",

language = "English",

volume = "156",

pages = "69--74",

journal = "Studies in Surface Science and Catalysis",

issn = "0167-2991",

publisher = "Elsevier",

}

TY - JOUR

T1 - In-situ studies of the formation mechanism of SBA-15

AU - Alfredsson, Viveka

AU - Amenitsch, H

AU - Flodström, Katarina

AU - Linden, M

AU - Teixeira, CV

AU - Wennerström, Håkan

PY - 2005

Y1 - 2005

N2 - The formation process of SBA-15 has been investigated by time resolved TEM, in-situ SAXS/SAXD and in-situ NMR. The synthesis was done at 35 degrees in acidic solution with tetramethylorthosilicate as the silica source and Pluronic P123 as the structure directing amphiphile. The initially formed silica-polymer composite consists of flocs of spherical micelles in a silica matrix. The micelles then coalesce forming rods that eventually pack into the ordered array of which SBA-15 consists.

AB - The formation process of SBA-15 has been investigated by time resolved TEM, in-situ SAXS/SAXD and in-situ NMR. The synthesis was done at 35 degrees in acidic solution with tetramethylorthosilicate as the silica source and Pluronic P123 as the structure directing amphiphile. The initially formed silica-polymer composite consists of flocs of spherical micelles in a silica matrix. The micelles then coalesce forming rods that eventually pack into the ordered array of which SBA-15 consists.

M3 - Article

SN - 0167-2991

VL - 156

SP - 69

EP - 74

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

ER -

In-situ studies of the formation mechanism of SBA-15

Abstract

Subject classification (UKÄ)

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