Mesoporous Silica Formation Mechanisms Probed Using Combined Spin–Echo Modulated Small-Angle Neutron Scattering (SEMSANS) and Small-Angle Neutron Scattering (SANS)
Abstract
In this work, 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.
- Authors:
-
[1];
[4];
[5];
[1]
- Univ. of Bath (United Kingdom)
- Univ. of Bath (United Kingdom); Delft Univ. of Technology (Netherlands)
- Delft Univ. of Technology (Netherlands)
- Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab. (RAL)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Indiana Univ., Bloomington, IN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Science and Technology Facilities Council
- OSTI Identifier:
- 1724450
- Grant/Contract Number:
- AC05-00OR22725; RB1710181
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Applied Materials and Interfaces
- Additional Journal Information:
- Journal Volume: 12; Journal Issue: 25; Journal ID: ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Schmitt, Julien, Zeeuw, Jan Joost, Plomp, Jeroen, Bouwman, Wim G., Washington, Adam L., Dalgliesh, Robert M., Duif, Chris P., Thijs, Michel A., Li, Fankang, Pynn, Roger, Parnell, Steven R., and Edler, Karen J. Mesoporous Silica Formation Mechanisms Probed Using Combined Spin–Echo Modulated Small-Angle Neutron Scattering (SEMSANS) and Small-Angle Neutron Scattering (SANS). United States: N. p., 2020.
Web. doi:10.1021/acsami.0c03287.
Schmitt, Julien, Zeeuw, Jan Joost, Plomp, Jeroen, Bouwman, Wim G., Washington, Adam L., Dalgliesh, Robert M., Duif, Chris P., Thijs, Michel A., Li, Fankang, Pynn, Roger, Parnell, Steven R., & Edler, Karen J. Mesoporous Silica Formation Mechanisms Probed Using Combined Spin–Echo Modulated Small-Angle Neutron Scattering (SEMSANS) and Small-Angle Neutron Scattering (SANS). United States. https://doi.org/10.1021/acsami.0c03287
Schmitt, Julien, Zeeuw, Jan Joost, Plomp, Jeroen, Bouwman, Wim G., Washington, Adam L., Dalgliesh, Robert M., Duif, Chris P., Thijs, Michel A., Li, Fankang, Pynn, Roger, Parnell, Steven R., and Edler, Karen J. Fri .
"Mesoporous Silica Formation Mechanisms Probed Using Combined Spin–Echo Modulated Small-Angle Neutron Scattering (SEMSANS) and Small-Angle Neutron Scattering (SANS)". United States. https://doi.org/10.1021/acsami.0c03287. https://www.osti.gov/servlets/purl/1724450.
@article{osti_1724450,
title = {Mesoporous Silica Formation Mechanisms Probed Using Combined Spin–Echo Modulated Small-Angle Neutron Scattering (SEMSANS) and Small-Angle Neutron Scattering (SANS)},
author = {Schmitt, Julien and Zeeuw, Jan Joost and Plomp, Jeroen and Bouwman, Wim G. and Washington, Adam L. and Dalgliesh, Robert M. and Duif, Chris P. and Thijs, Michel A. and Li, Fankang and Pynn, Roger and Parnell, Steven R. and Edler, Karen J.},
abstractNote = {In this work, 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.},
doi = {10.1021/acsami.0c03287},
journal = {ACS Applied Materials and Interfaces},
number = 25,
volume = 12,
place = {United States},
year = {Fri Apr 24 00:00:00 EDT 2020},
month = {Fri Apr 24 00:00:00 EDT 2020}
}
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