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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 28: Poster III
CPP 28.48: Poster
Wednesday, March 20, 2024, 11:30–13:30, Poster C
Time-dependent morphology evolution of templated mesoporous titanium films — •Guangjiu Pan1, Tianle Zheng1, Suzhe Liang1, Altantulga Buyan-Arivjikh1, Caroline Ehgartner2, Nicola Hüsing2, Matthias Schwartzkopf3, Stephan V. Roth3,4, and Peter Müller-Buschbaum1,5 — 1TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany — 2Universität Salzburg, 5020 Salzburg, Austria — 3DESY, 22607 Hamburg, Germany — 4KTH Royal Institute of Technology, SE 100 44 Stockholm, Sweden — 5TUM, MLZ, 85748 Garching, Germany
Mesoporous transition metal oxides have attracted significant interest due to their excellent properties. The soft templating approach with the sol-gel method is one of the most common approaches for designing mesoporous transition metal oxides. However, the influence of hydrolysis and condensation of precursors on the morphology is still unclear. Commercial metal alkoxide precursors were chosen in this work to demonstrate the influence of the reaction time. A similar morphology transition, from worm-shaped mesopores to ordered spherical mesopores, was observed with increasing sol-gel reaction time for different precursors. The surface morphologies of spin-coated films are probed via scanning electron microscopy and grazing-incidence small-angle X-ray scattering (GISAXS).
Keywords: self assembly; mesoporous materials; X-ray scattering; block copolymer