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Formation of a new Ia(3)over-bard cubic meso-structured silica via triblock copolymer-assisted synthesis

Flodström, Katarina LU ; Alfredsson, Viveka LU and Källrot, Niklas LU (2003) In Journal of the American Chemical Society 125(15). p.4402-4403
Abstract
A new mesoporous silica structure with cubic Iad symmetry has been synthesized. The structure has very large unit cell dimensions, up to 250 Å in the as-synthesized form and 222 Å after calcination, and the surface area is around 700 m2/g. The syntheses were done according to well-established synthesis conditions with the triblock copolymers Pluronics P103 or P123, except for the addition of NaI to the synthesis mixture. Small-angle X-ray scattering revealed that the sample has Iad symmetry. According to electron micrographs, the structure is similar to that of MCM-48, and we thus propose that the structure lies on the gyroid minimal surface.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of the American Chemical Society
volume
125
issue
15
pages
4402 - 4403
publisher
The American Chemical Society
external identifiers
  • wos:000182137800001
  • pmid:12683793
  • scopus:0037448908
ISSN
1520-5126
DOI
10.1021/ja029353j
language
English
LU publication?
yes
id
a301e444-6345-45cc-9b42-f3a0d9392cdf (old id 121991)
date added to LUP
2007-07-11 11:31:07
date last changed
2018-01-07 09:07:48
@article{a301e444-6345-45cc-9b42-f3a0d9392cdf,
  abstract     = {A new mesoporous silica structure with cubic Iad symmetry has been synthesized. The structure has very large unit cell dimensions, up to 250 Å in the as-synthesized form and 222 Å after calcination, and the surface area is around 700 m2/g. The syntheses were done according to well-established synthesis conditions with the triblock copolymers Pluronics P103 or P123, except for the addition of NaI to the synthesis mixture. Small-angle X-ray scattering revealed that the sample has Iad symmetry. According to electron micrographs, the structure is similar to that of MCM-48, and we thus propose that the structure lies on the gyroid minimal surface.},
  author       = {Flodström, Katarina and Alfredsson, Viveka and Källrot, Niklas},
  issn         = {1520-5126},
  language     = {eng},
  number       = {15},
  pages        = {4402--4403},
  publisher    = {The American Chemical Society},
  series       = {Journal of the American Chemical Society},
  title        = {Formation of a new Ia(3)over-bard cubic meso-structured silica via triblock copolymer-assisted synthesis},
  url          = {http://dx.doi.org/10.1021/ja029353j},
  volume       = {125},
  year         = {2003},
}