Mesoporous Silica Formation Mechanisms Probed Using Combined Spin–Echo Modulated Small-Angle Neutron Scattering (SEMSANS) and Small-Angle Neutron Scattering (SANS) | Zendy

Julien Schmitt | Zendy; Jan Joost Zeeuw | Zendy; Jeroen Plomp | Zendy; Wim G. Bouwman | Zendy; A. L. Washington | Zendy; Robert M. Dalgliesh | Zendy; Chris P. Duif | Zendy; Michel A. Thijs | Zendy; Fankang Li | Zendy; R. Pynn | Zendy; Steven R. Parnell | Zendy; Karen J. Edler | Zendy

Open Access

Mesoporous Silica Formation Mechanisms Probed Using Combined Spin–Echo Modulated Small-Angle Neutron Scattering (SEMSANS) and Small-Angle Neutron Scattering (SANS)

Author(s) -

Julien Schmitt,

Jan Joost Zeeuw,

Jeroen Plomp,

Wim G. Bouwman,

A. L. Washington,

Robert M. Dalgliesh,

Chris P. Duif,

Michel A. Thijs,

Fankang Li,

R. Pynn,

Steven R. Parnell,

Karen J. Edler

Publication year - 2020

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.0c03287

Subject(s) - small angle neutron scattering , materials science , neutron scattering , scattering , small angle scattering , contact angle , pulmonary surfactant , mesoporous material , neutron , small angle x ray scattering , grazing incidence small angle scattering , neutron spin echo , neutron reflectometry , chemical engineering , optics , chemical physics , organic chemistry , composite material , chemistry , nuclear physics , physics , catalysis , engineering

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 (C 16 EO 8 ) 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.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research