Mechanism of silver(I)-assisted growth of gold nanorods and bipryamids

Article Abstract:

A systematic study on the Ag(I) assisted seed mediation growth of gold anisotropic structures in cetyltrimethyl ammonium bromide (CTAB) solutions was performed. The study revealed that, the potential deposit of Ag(I) leads to the dominance of the facets with the more open surface structures and forms the basis of the one-dimensional growth mechanism of single crystal nanorods that affects the shape of the nanostructures growing along a single twinning axis.

Anisotropy, Crystals, Crystal structure, Chemical properties

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Growth kinetics and metastability of monodisperse tetraoctylammonium bromide capped gold nanocrystals

Article Abstract:

A small-angle X-ray scattering (SAXS) data for hydrophobic gold nanocrystals, which produced a two-phase arrested precipitation as a function of reaction time is presented. Analysis of the final particle size distribution and the rates of transport and reaction in the system indicate that at long reaction times the particle growth is limited by adsorption and reaction of the gold monomer onto the surface of the nanocrystals.

Observations, Surface chemistry, Bromides, Bromides (Chemistry)

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Melting and freezing characteristics and structural properties of supported and unsupported gold nanoclusters

Article Abstract:

The melting and freezing behavior and structural properties of both supported and unsupported Au nanoclusters within a size range of 2 to 5 nm is studied by using molecular dynamics simulations and Modified Embedded Atom Method (MEAM) potential models. The results demonstrate that the structural stability in the structures of small Au nanoclusters could be enhanced through interaction with the substrate.

Molecular dynamics, Melting points, Melting, Properties

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