In situ SAXS investigation of dual ordered mesoporous materials formation.
(2015) In ChemPhysChem 16(17). p.3637-3641- Abstract
- The formation of two-dimensional (2D)-hexagonal (p6m) silica-based hybrid material with a dual-mesoporosity is investigated in situ using synchrotron time-resolved Small Angle X-ray Scattering (SAXS). The material is synthesized from a mixed micellar solution of a nonionic fluorinated surfactant, RF₈(EO)₉, and a nonionic triblock copolymer, P123. Both mesoporosities, with pores dimensions at 3.3 and 8.5 nm respectively, are seen by Nitrogen sorption, TEM and SAXS. The in situ SAXS experiments reveal a mesophase formation in two steps. First the nucleation and growth of a primary 2D-hexagonal network (N1) associated to mixed micelles containing P123, then followed by the formation of the second network (N2) associated to micelles of pure... (More)
- The formation of two-dimensional (2D)-hexagonal (p6m) silica-based hybrid material with a dual-mesoporosity is investigated in situ using synchrotron time-resolved Small Angle X-ray Scattering (SAXS). The material is synthesized from a mixed micellar solution of a nonionic fluorinated surfactant, RF₈(EO)₉, and a nonionic triblock copolymer, P123. Both mesoporosities, with pores dimensions at 3.3 and 8.5 nm respectively, are seen by Nitrogen sorption, TEM and SAXS. The in situ SAXS experiments reveal a mesophase formation in two steps. First the nucleation and growth of a primary 2D-hexagonal network (N1) associated to mixed micelles containing P123, then followed by the formation of the second network (N2) associated to micelles of pure RF₈(EO)₉. The data obtained from SAXS and TEM suggest that N1 is used as nucleation centers for the formation of N2, that would result in the formation of a grain with both mesoporosities. Understanding the formation mechanism of such material is an important step towards the synthesis of more complex materials with a fine tuning of the porosity. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8035989
- author
- Schmitt, Julien LU ; Canilho, Nadia ; Impéror-Clerc, Marianne ; Blin, Jean-Luc ; Pedersen, Jan Skov ; Pérez, Javier ; Lebeau, Bénédicte ; Vidal, Loic and Stébé, Marie José
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- ChemPhysChem
- volume
- 16
- issue
- 17
- pages
- 3637 - 3641
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- pmid:26383498
- wos:000367324700013
- scopus:84954338630
- pmid:26383498
- ISSN
- 1439-7641
- DOI
- 10.1002/cphc.201500642
- language
- English
- LU publication?
- yes
- id
- 32f57299-b168-4ba2-ad15-7fc04f8cd0fc (old id 8035989)
- date added to LUP
- 2016-04-01 10:56:44
- date last changed
- 2022-01-26 03:57:12
@article{32f57299-b168-4ba2-ad15-7fc04f8cd0fc, abstract = {{The formation of two-dimensional (2D)-hexagonal (p6m) silica-based hybrid material with a dual-mesoporosity is investigated in situ using synchrotron time-resolved Small Angle X-ray Scattering (SAXS). The material is synthesized from a mixed micellar solution of a nonionic fluorinated surfactant, RF₈(EO)₉, and a nonionic triblock copolymer, P123. Both mesoporosities, with pores dimensions at 3.3 and 8.5 nm respectively, are seen by Nitrogen sorption, TEM and SAXS. The in situ SAXS experiments reveal a mesophase formation in two steps. First the nucleation and growth of a primary 2D-hexagonal network (N1) associated to mixed micelles containing P123, then followed by the formation of the second network (N2) associated to micelles of pure RF₈(EO)₉. The data obtained from SAXS and TEM suggest that N1 is used as nucleation centers for the formation of N2, that would result in the formation of a grain with both mesoporosities. Understanding the formation mechanism of such material is an important step towards the synthesis of more complex materials with a fine tuning of the porosity.}}, author = {{Schmitt, Julien and Canilho, Nadia and Impéror-Clerc, Marianne and Blin, Jean-Luc and Pedersen, Jan Skov and Pérez, Javier and Lebeau, Bénédicte and Vidal, Loic and Stébé, Marie José}}, issn = {{1439-7641}}, language = {{eng}}, number = {{17}}, pages = {{3637--3641}}, publisher = {{John Wiley & Sons Inc.}}, series = {{ChemPhysChem}}, title = {{In situ SAXS investigation of dual ordered mesoporous materials formation.}}, url = {{http://dx.doi.org/10.1002/cphc.201500642}}, doi = {{10.1002/cphc.201500642}}, volume = {{16}}, year = {{2015}}, }