Print Email Facebook Twitter Mesoporous Silica Formation Mechanisms Probed Using Combined Spin-Echo Modulated Small-Angle Neutron Scattering (SEMSANS) and Small-Angle Neutron Scattering (SANS) 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 (University of Bath) Zeeuw, Jan Joost (University of Bath; Student TU Delft) Zeeuw, Jan Joost (University of Bath; Student TU Delft) Plomp, J. (TU Delft RID/TS/Instrumenten groep) Bouwman, W.G. (TU Delft RST/Neutron and Positron Methods in Materials) Washington, Adam L. (Rutherford Appleton Laboratory) Duif, C.P. (TU Delft RST/Technici Pool; TU Delft RID/TS/Technici Pool) Thijs, M.A. (TU Delft RID/TS/Technici Pool) Parnell, S.R. (TU Delft RID/TS/Instrumenten groep) Date 2020 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. Subject kineticsmesophasemesoporous silicamicellesparticlessilica filmssmall-angle neutron scattering (SANS)spin-echo modulated small-angle neutron scattering (SEMSANS) To reference this document use: http://resolver.tudelft.nl/uuid:14323797-a2b5-43f5-bb44-23f8a534e1f2 DOI https://doi.org/10.1021/acsami.0c03287 Embargo date 2020-10-24 ISSN 1944-8244 Source ACS applied materials & interfaces, 12 (25), 28461-28473 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2020 Julien Schmitt, Jan Joost Zeeuw, Jan Joost Zeeuw, J. Plomp, W.G. Bouwman, Adam L. Washington, C.P. Duif, M.A. Thijs, S.R. Parnell, More Authors Files PDF acsami.0c03287taverne.pdf 3.78 MB Close viewer /islandora/object/uuid:14323797-a2b5-43f5-bb44-23f8a534e1f2/datastream/OBJ/view