Regensburg 2019 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 37: Poster Session III

CPP 37.1: Poster

Mittwoch, 3. April 2019, 11:00–13:00, Poster B1

Key factors in the synthesis of template-oriented porous ordered titanium dioxide: solvents and catalysts — •Shanshan Yin and Peter Müller-Buschbaum — TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching

As a crucial material for energy storage, TiO2 has been widely studied during the past decades. Typically, when used as the active material of lithium-ion batteries or solar cells, TiO2 thin films with specific structures always afford more advantages than classical bulk material. In this work, various intriguing structures have been synthesized with the template-oriented sol-gel method. Both, the hydrolysis and condensation reaction of TTIP, are confined into the PEO domain of the amphiphilic diblock copolymer during the sol-gel synthetic process. Since the polymer template can be fully removed with the calcination, the morphology control of the TiO2 thin film is realized with controlling the phase separation behavior of the block polymer. In the present work, the influence of the solvent category and catalyst content on the morphology of TiO2 thin film is discussed in detail. SEM and GISAXS measurements were carried out to study the pore structures of the TiO2 films.