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 24: Poster Session I
CPP 24.49: Poster
Montag, 16. März 2020, 17:30–19:30, P3
New insights of the gold nanoparticle growth: Simultaneous SAXS/SANS study — •Ezzeldin Metwalli1, Klaus Götz1, Tobias Zech1, Christian Bär1, Anne Martel2, Lionel Porcar2, and Tobias Unruh1 — 1ICSP, Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany — 2Institut Laue-Langevin, 71, Avenue des Martyrs, Grenoble, 38042, France
Exploiting small angle X-ray and neutron scattering SAXS/SANS methods on the same sample volume at the same time offers a unique possibility to obtain complementary nanoscale structural information at two different contrast situations. A custom-made portable SAXS system has been designed, constructed and installed at D22-ILL for simultaneous SAXS/SANS experiments. For the first time, the temporal structural cross-correlation between organic stabilizing agent (cetyltrimethylammonium bromide; CTAB micelles) and gold seeds, which cooperate in the formation of different size/shape of large stabilized gold nanoparticles [1], has reliably been determined on the same sample. Compared with an independent experimental approach, the current experimental approach ensures the exactness of the probed samples, especially for time-resolved studies. This novel nano-analytical method at ILL will answer yet unresolved scientific questions allowing real time investigations of a wide range of innovative materials such as smart self-assembling nanomaterials and multifunctional materials as well as enabling comprehensive in situ studies on biological systems. [1] T. Schmutzler, et al., ACS Applied Nano Materials 2, 3206 (2019).