Conveners
Nanoparticles and Interfaces
- Mirijam Zobel (Universität Bayreuth)
Here we present a high energy X-ray total scattering study of aqueous IONP dispersions. Pushing the boundaries of detection efficiencies for diminutive signals from weak scatterers (sub 1% of total scattered intensity), hydration shell signals are retrieved by careful double-difference pair distribution function analysis of the total scattering data from the dispersion minus bulk water minus...
Spherical PVP-coated Ag (10 nm) and Pt (3 nm) NPs were wet-chemically synthesized and mixed as aqueous dispersion with different mass ratios of Ag:Pt. It was shown that the dissolution of Ag NPs was strongly enhanced by the presence of Pt NPs in chloride-containing aqueous dispersion. This behavior was confirmed by PXRD and TEM (Fig. 1). At the same time, only a slow dissolution of Ag NPs in...
Nanoparticles of noble metals are of great importance as they present diverse applications in several fields. However, bimetallic nanoparticles of noble metals are showing an advantage over monometallic ones, especially those with defined shape and size due to their improved properties. In this work, core-shell nanocubes consisting of two coin metals, e.g. silver (Ag) and gold (Au), were...
Bimetallic nanoparticles offer a new degree of freedom to vary the particle characteristics by blending two metals in one particle. We have prepared series of monodisperse nanoalloys over the entire composition range and analyzed their structure using a wide range of methods. X-ray diffraction as well as electron microscopic and spectroscopic techniques were employed to understand the...
