Nucleation, growth and degradation of anisotropic nanoparticles

Growth, stabilization and ripening of nanoparticles in suspensions

(Third Party Funds Group – Sub project)

Overall project: In situ Microscopy with Electrons, X-rays and Scanning Probes
Project leader: ,
Project members: ,
Start date: 1. October 2013
End date: 30. September 2017
Extension Datevv: 30. September 2022
Acronym: GRK1896-A3
Funding source: DFG / Graduiertenkolleg (GRK)

Abstract:

The synthesis of noble metal nanoparticles in various shapes and sizes is of high importance for many applications. Mostly, the preparation of these nanoparticles is done in aqueous solutions via a wet-chemical approach where micelle forming surfactants are involved as catalysts, structure directing agents and stabilizers. The main focus of roject A3 is to gain a deeper understanding of the interaction between inorganic noble metal nanoparticles and amphiphilic micelles. These interactions seem to play a crucial role in the formation, stabilization and degradation of such particles. We use small angle X-ray (SAXS) and neutron scattering (SANS) in combination with UV-Vis absorption spectroscopy and transmission electron microscopy to characterize the nanoparticles and micelles.