Mesoporous silica formation mechanisms probed using combined Spin-Echo Modulated Small Angle Neutron Scattering (SEMSANS) and Small Angle Neutron Scattering (SANS)

Julien Schmitt; Jan Joost Zeeuw; Jeroen Plomp; Wim G. Bouwman; Adam Washington; Robert Malcolm Dalgliesh; Chris Duif; Michel A. Thijs; Fankang Li; Roger Pynn; Steven R. Parnell; Karen J. Edler

doi:10.1021/acsami.0c03287

Mesoporous silica formation mechanisms probed using combined Spin-Echo Modulated Small Angle Neutron Scattering (SEMSANS) and Small Angle Neutron Scattering (SANS)

Julien Schmitt, Jan Joost Zeeuw, Jeroen Plomp, Wim G. Bouwman, Adam Washington, Robert Malcolm Dalgliesh, Chris Duif, Michel A. Thijs, Fankang Li, Roger Pynn, Steven R. Parnell, Karen J. Edler

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

18 Citations (SciVal)

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Abstract

The initial formation stages of surfactant-templated silica thin films which grow at the air-water interface were studied using combined spin-echo modulated small-angle neutron scattering (SEMSANS) and small-angle neutron scattering (SANS). The films are formed from either a cationic surfactant or nonionic surfactant (C16EO8) in a dilute acidic solution by the addition of tetramethoxysilane. Previous work has suggested a two stage formation mechanism with mesostructured particle formation in the bulk solution driving film formation at the solution surface. From the SEMSANS data, it is possible to pinpoint accurately the time associated with the formation of large particles in solution that go on to form the film and to show their emergence is concomitant with the appearance of Bragg peaks in the SANS pattern, associated with the two-dimensional hexagonal order. The combination of SANS and SEMSANS allows a complete depiction of the steps of the synthesis that occur in the subphase.

Original language	English
Pages (from-to)	28461-28473
Number of pages	13
Journal	ACS applied materials & interfaces
Volume	12
Issue number	25
Early online date	24 Apr 2020
DOIs	https://doi.org/10.1021/acsami.0c03287
Publication status	Published - 24 Jun 2020

Keywords

kinetics
mesophase
mesoporous silica
micelles
particles
silica films
small-angle neutron scattering (SANS)
spin-echo modulated small-angle neutron scattering (SEMSANS)

ASJC Scopus subject areas

General Materials Science

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10.1021/acsami.0c03287

Draft_SEMSANS_200409.PDF
This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Appl. Mater. Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsami.0c03287
Accepted author manuscript, 1.78 MB

https://pubs.acs.org/doi/10.1021/acsami.0c03287

Cite this

Schmitt, J., Zeeuw, J. J., Plomp, J., Bouwman, W. G., Washington, A., Dalgliesh, R. M., Duif, C., Thijs, M. A., Li, F., Pynn, R., Parnell, S. R., & Edler, K. J. (2020). Mesoporous silica formation mechanisms probed using combined Spin-Echo Modulated Small Angle Neutron Scattering (SEMSANS) and Small Angle Neutron Scattering (SANS). ACS applied materials & interfaces, 12(25), 28461-28473. https://doi.org/10.1021/acsami.0c03287

Mesoporous silica formation mechanisms probed using combined Spin-Echo Modulated Small Angle Neutron Scattering (SEMSANS) and Small Angle Neutron Scattering (SANS). / Schmitt, Julien; Zeeuw, Jan Joost; Plomp, Jeroen et al.
In: ACS applied materials & interfaces, Vol. 12, No. 25, 24.06.2020, p. 28461-28473.

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

Schmitt, J, Zeeuw, JJ, Plomp, J, Bouwman, WG, Washington, A, Dalgliesh, RM, Duif, C, Thijs, MA, Li, F, Pynn, R, Parnell, SR & Edler, KJ 2020, 'Mesoporous silica formation mechanisms probed using combined Spin-Echo Modulated Small Angle Neutron Scattering (SEMSANS) and Small Angle Neutron Scattering (SANS)', ACS applied materials & interfaces, vol. 12, no. 25, pp. 28461-28473. https://doi.org/10.1021/acsami.0c03287

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title = "Mesoporous silica formation mechanisms probed using combined Spin-Echo Modulated Small Angle Neutron Scattering (SEMSANS) and Small Angle Neutron Scattering (SANS)",

abstract = "The initial formation stages of surfactant-templated silica thin films which grow at the air-water interface were studied using combined spin-echo modulated small-angle neutron scattering (SEMSANS) and small-angle neutron scattering (SANS). The films are formed from either a cationic surfactant or nonionic surfactant (C16EO8) in a dilute acidic solution by the addition of tetramethoxysilane. Previous work has suggested a two stage formation mechanism with mesostructured particle formation in the bulk solution driving film formation at the solution surface. From the SEMSANS data, it is possible to pinpoint accurately the time associated with the formation of large particles in solution that go on to form the film and to show their emergence is concomitant with the appearance of Bragg peaks in the SANS pattern, associated with the two-dimensional hexagonal order. The combination of SANS and SEMSANS allows a complete depiction of the steps of the synthesis that occur in the subphase.",

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AU - Washington, Adam

AU - Dalgliesh, Robert Malcolm

AU - Duif, Chris

AU - Thijs, Michel A.

AU - Li, Fankang

AU - Pynn, Roger

AU - Parnell, Steven R.

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Mesoporous silica formation mechanisms probed using combined Spin-Echo Modulated Small Angle Neutron Scattering (SEMSANS) and Small Angle Neutron Scattering (SANS)

Abstract

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