Stabilization of ligand-coated non-polar nanoparticle dispersions by addition of molecular additives
Ligand-stabilized gold nanoparticles are promising building blocks for materials with well-defined structures and properties. Their colloidal stability is limited, even though stability is essential for their combination with other components and the definition of superstructures that define functionality. Molecular additives may strongly change particle stability, even at low concentrations, because they affect the conformation of the ligands inside the shells. Preliminary small-angle X-ray scattering (SAXS) showed an improved nanoparticle stability in the presence of cyclic amines and thiols as additives, suggesting that they are accumulated inside the ligand shell. However, due to the small differences in electron densities between organic components, SAXS cannot be used to investigate the shell structure directly. Therefore, we propose small-angle neutron scattering to investigate the distribution of additive molecules inside and around the shell. The results will help us to understand the mechanisms behind the improved nanoparticle stability, as well as to direct the search for additional additives.
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The recommended format for citing this dataset in a research publication is in the following format:
NIEBUUR Bart-Jan; KISTER Thomas; KNAPP Tobias; KRAUS Tobias; MATSARSKAIA Olga and PORCAR Lionel. (2023). Stabilization of ligand-coated non-polar nanoparticle dispersions by addition of molecular additives. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-12-709
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This data is not yet public
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