scholarly journals Colloidal nanoparticle size control: experimental and kinetic modeling investigation of the ligand–metal binding role in controlling the nucleation and growth kinetics

Nanoscale ◽  
2017 ◽  
Vol 9 (36) ◽  
pp. 13772-13785 ◽  
Author(s):  
Saeed Mozaffari ◽  
Wenhui Li ◽  
Coogan Thompson ◽  
Sergei Ivanov ◽  
Soenke Seifert ◽  
...  
Keyword(s):  
Kinetic Model ◽  
Kinetic Modeling ◽  
Growth Kinetics ◽  
Metal Binding ◽  
Size Control ◽  
Pd Nanoparticles ◽  
Nucleation And Growth ◽  
Nanoparticle Size

In situ SAXS and ligand-based kinetic model are used for predictive synthesis of ligand-protected Pd nanoparticles in different solvents.

Nucleation and Growth Kinetics of ZnO Nanoparticles Studied by in Situ Microfluidic SAXS/WAXS/UV–Vis Experiments

Langmuir ◽  
2019 ◽  
Vol 35 (36) ◽  
pp. 11702-11709 ◽  
Author(s):  
Maria Herbst ◽  
Eddie Hofmann ◽  
Stephan Förster
Keyword(s):  
Growth Kinetics ◽  
Zno Nanoparticles ◽  
Nucleation And Growth ◽  
Kinetics Of

Quantifying the Nucleation and Growth Kinetics of Microwave Nanochemistry Enabled by in Situ High-Energy X-ray Scattering

Nano Letters ◽  
2015 ◽  
Vol 16 (1) ◽  
pp. 715-720 ◽  
Author(s):  
Qi Liu ◽  
Min-Rui Gao ◽  
Yuzi Liu ◽  
John S. Okasinski ◽  
Yang Ren ◽  
...  
Keyword(s):  
Growth Kinetics ◽  
High Energy ◽  
Nucleation And Growth ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Ray Scattering

Role of boundaries in the crystallization of amorphous films

1988 ◽  
Vol 46 ◽  
pp. 626-627
Author(s):  
D. A. Smith
Keyword(s):  
Low Temperature ◽  
Amorphous State ◽  
Nucleation And Growth ◽  
Amorphous Films ◽  
Island Nucleation ◽  
Surface Steps ◽  
Transmission Electron ◽  
Component Systems ◽  
Temperature Deposition

The nucleation and growth processes which lead to the formation of a thin film are particularly amenable to investigation by transmission electron microscopy either in situ or subsequent to deposition. In situ studies have enabled the observation of island nucleation and growth, together with addition of atoms to surface steps. This paper is concerned with post-deposition crystallization of amorphous alloys. It will be argued that the processes occurring during low temperature deposition of one component systems are related but the evidence is mainly indirect. Amorphous films result when the deposition conditions such as low temperature or the presence of impurities (intentional or unintentional) preclude the atomic mobility necessary for crystallization. Representative examples of this behavior are CVD silicon grown below about 670°C, metalloids, such as antimony deposited at room temperature, binary alloys or compounds such as Cu-Ag or Cr O2, respectively. Elemental metals are not stable in the amorphous state.

A TEM study of the microstructure of avian eggshells

1992 ◽  
Vol 50 (2) ◽  
pp. 1102-1103
Author(s):  
S. Q. Xiao ◽  
S. Baden ◽  
A. H. Heuer
Keyword(s):  
Electron Microscope ◽  
Calcium Carbonate ◽  
Nucleation And Growth ◽  
Growth Mechanisms ◽  
Shell Surface ◽  
Thin Sections ◽  
Polycrystalline Metals ◽  
Transmission Electron ◽  
Nucleation And Growth Mechanisms

The avian eggshell is one of the most rapidly mineralizing biological systems known. In situ, 5g of calcium carbonate are crystallized in less than 20 hrs to fabricate the shell. Although there have been much work about the formation of eggshells, controversy about the nucleation and growth mechanisms of the calcite crystals, and their texture in the eggshell, still remain unclear. In this report the microstructure and microchemistry of avian eggshells have been analyzed using transmission electron microscope (TEM) and energy dispersive spectroscopy (EDS).Fresh white and dry brown eggshells were broken and fixed in Karnosky's fixative (kaltitanden) for 2 hrs, then rinsed in distilled H2O. Small speckles of the eggshells were embedded in Spurr medium and thin sections were made ultramicrotome.The crystalline part of eggshells are composed of many small plate-like calcite grains, whose plate normals are approximately parallel to the shell surface. The sizes of the grains are about 0.3×0.3×1 μm3 (Fig.l). These grains are not as closely packed as man-made polycrystalline metals and ceramics, and small gaps between adjacent grains are visible indicating the absence of conventional grain boundaries.

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