Dresden 2020 – wissenschaftliches Programm
Die DPG-Frühjahrstagung in Dresden musste abgesagt werden! Lesen Sie mehr ...
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
CPP: Fachverband Chemische Physik und Polymerphysik
CPP 49: Poster Session II
CPP 49.6: Poster
Dienstag, 17. März 2020, 14:00–16:00, P1A
Key factors study in amphiphilic block copolymer-oriented porous SnO2 synthesis process — •Shanshan Yin1 and Peter Müller-Buschbaum1,2 — 1TU München, Physik-Department, LS Funktionelle Materialien, 85748 Garching — 2Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, D-85748 Garching, Germany
SnO2, as a crucial material in the field of energy storage, has always been the focus of scientific research. For organic-inorganic halide perovskite solar cells (PSCs) or dye-sensitized solar cells (DSSCs), SnO2 contributes a high electron mobility and superior chemical stability amongst the various metal oxides. Moreover, as an alternative anode material for lithium ion battery, it possesses a decent theoretical specific capacity of 1494 mAhg-1. Compared with conventional bulk materials, mesoporous SnO2 with high specific surface area affords more advantages when applied on either solar cells or lithium-ion batteries. In the present work, a novel amphiphilic block copolymer assisted sol-gel chemistry is used for the synthesis of porous SnO2 nanostructure. Different kinds of solvent are used as good solvent for both PS and PEO polymer chains, HCl is utilized as a selective poor solvent for PS chains and catalyst for the hydrolytic condensation reaction of SnCl4 precursor. For removing the organic polymer template, the composite thin films are calcined at 500 °C for two hours under ambient condition. The obtained nanostructures are characterized by scanning electron microscope (SEM), X-ray dffraction (XRD) and grazing-incidence small-angle X-ray scattering (GISAXS) measurement.