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Characterization of the structure of mesoporous thin films grown at the air/water interface using X-ray surface techniques

Brennan, Tessa ; Roser, Stephen J. ; Mann, Stephen and Edler, Karen J. LU orcid (2003) In Langmuir 19(7). p.2639-2642
Abstract

Grazing incidence X-ray diffraction (GIKD) and X-ray reflectivity have been used in situ to study the structure of surfactant-templated silica films grown at the air/water interface at different depths in the film. The results confirm that cylindrical silica-encased surfactant micelles are predominantly organized into a two-dimensional hexagonal structure, with the long axis parallel to the surface of the film. The arrangement of the micelles is well orientated near to the air/film interface but becomes disordered deeper into the sample. GIXD also reveals the existence of vertical channels extending down from the bottom of the film. This suggests a transition from in-plane to unconstrained growth.

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author
; ; and
publishing date
type
Contribution to journal
publication status
published
in
Langmuir
volume
19
issue
7
pages
4 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:0037650202
ISSN
0743-7463
DOI
10.1021/la0203786
language
English
LU publication?
no
id
8de7fe9a-236e-4a8f-91e0-f29077d268b3
date added to LUP
2023-05-04 18:22:59
date last changed
2023-06-13 12:24:50
@article{8de7fe9a-236e-4a8f-91e0-f29077d268b3,
  abstract     = {{<p>Grazing incidence X-ray diffraction (GIKD) and X-ray reflectivity have been used in situ to study the structure of surfactant-templated silica films grown at the air/water interface at different depths in the film. The results confirm that cylindrical silica-encased surfactant micelles are predominantly organized into a two-dimensional hexagonal structure, with the long axis parallel to the surface of the film. The arrangement of the micelles is well orientated near to the air/film interface but becomes disordered deeper into the sample. GIXD also reveals the existence of vertical channels extending down from the bottom of the film. This suggests a transition from in-plane to unconstrained growth.</p>}},
  author       = {{Brennan, Tessa and Roser, Stephen J. and Mann, Stephen and Edler, Karen J.}},
  issn         = {{0743-7463}},
  language     = {{eng}},
  month        = {{04}},
  number       = {{7}},
  pages        = {{2639--2642}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Langmuir}},
  title        = {{Characterization of the structure of mesoporous thin films grown at the air/water interface using X-ray surface techniques}},
  url          = {{http://dx.doi.org/10.1021/la0203786}},
  doi          = {{10.1021/la0203786}},
  volume       = {{19}},
  year         = {{2003}},
}