Dispersion stability of colloids in sub- and supercritical water

Article Abstract:

The stability behavior of standard colloidal particles including metal, polymer and inorganic materials in sub- and supercritical water, are investigated. The surface charge density and Stern potential are found to change with respect to temperature due to the readjustment of the ion concentration in the diffuse layer through the enhanced ion product and reduced dielectric constant of water.

Electric properties, Light scattering, Mechanical properties, Dielectric measurements, Dielectric measurement

---

Linking phase behavior and reversible colloidal aggregation at low concentrations: Simulations and stochastic mean field theory

Article Abstract:

The computer simulations and a theoretical model were used to examine the link between the kinetics of clustering and the phase behavior of dilute colloids with short range attractions of moderate strength. The weak attractions are found to be associated with a gas phase of small clusters, intermediate with liquid-gas separation and strong attractions with fractal unbreakable clusters.

Science & research, Research, Clusters (Chemistry), Chemical properties, Matter, Kinetic theory of, Kinetic theory, Report

---

Free volumes and the anomalous self-diffusivity of attractive colloids

Article Abstract:

A conceptual revision to the traditional free volume perspective is proposed that takes into account both the size distribution and the characteristic persistence time of the free volumes. The results have shown that it can quantitatively captures the disparate behaviors of a model fluid with short-range attractions and its hard-sphere reference fluid.

Molecular dynamics, Thermodynamics, Properties

Similar abstracts:

• Abstracts: Dispersion and reactivity of copper catalysts supported on Al2O3-ZrO2. Characterization and reactivity of copper oxide catalysts supported on TiO2-ZrO2
• Abstracts: Adsorption and activity of a domoic acid binding antibody fragment on mesoporous silicates. Methodology for the immobilization of enzymes onto mesoporous materials
• Abstracts: Factors governing the quality of aqueous CdTe nanocrystals: Calculations and experiment. Investigation of energy transfer between CdTe nanocrystal on polystyrene beads and dye molecules for FRET-SNOM application
• Abstracts: Structure sensitivity of methanol electrooxidation pathways on platinum: An on-line electrochemical mass spectrometry study
• Abstracts: Ionization equilibria and conformational transitions in polyprotic molecules and polyelectrolytes. Modelling layer-by-layer assembly of flexible polyelectrolytes

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.