The influence of supersaturation on crystal morphology – experimental and theoretical study

Abstract

The surface docking approach of molecular modeling for prediction of crystal morphology in the presence of additives is further developed in this work. It is modified in order to take into account the influence of supersaturation on the crystal habit. With the introduction of the BCF theory and the 2-D growth mechanism in the above mentioned approach predictions have been carried out for paracetamol and caprolactam crystals, respectively. The verifications by crystals grown from solutions as simulated by the computer model give good agreements.

HRTEM observation of defect structures of β‐Ga2O3 nanowires

“…The preferable growth occurs with impurity concentration associated with supersaturation and surface energy. During the β‐Ga 2 O 3 nanowire growth, the Cu atoms were dissolved in the gallium solution with various contents, the supersaturation degree would decrease, and then the β‐Ga 2 O 3 nanowire growth was facilitated 26, 33, 34. And the morphologies of β‐Ga 2 O 3 nanowires may be influenced by affecting the supersaturation condition and surface energy.…”

Growth of Nanowire and Nanobelt Based Oxides by Thermal Oxidation with Gallium

“…The -Fe 2 O 3 nanostructures would be formed on the iron surface when the droplets got supersaturated, and the growth would be terminated when the liquid is condensed into the solid state during cooling down (Kim et al, 2006;Yu et al, 2006). The -Fe 2 O 3 nanostructure growth should be controlled by the Fe surface diffusion and supersaturation (Lu & Ulrich, 2005;Takagi, 1957;Ye et al, 2005;. In this study, the transformation from nanowire growth to nanobelt growth or even microcrystal growth was observed in Figs.…”

“…9 and 13. It is generally suggested that high supersaturation favors the two-dimensional growth of the nanostructures (Lu & Ulrich, 2005;Ye et al, 2005;. At low temperatures (below 600 ºC), few droplets were formed and the diffusion rate was very low, thus sparse nanowires were grown (Fig.…”

First principle study towards the influence of Cd2+ on the morphology of sodium chloride

“…An approach similar to surface docking developed to predict the influence of additives on the crystal morphology has been employed here [20][21][22][23][24][25][26]. The basis of this approach is to analyze the effect of additives on the individual crystal faces, which are cleaved from a crystal.…”