Living Colloidal Metal Particles from Solvated Metal Atoms. Clustering of Metal Atoms in Organic Media 15.
KANSAS STATE UNIV MANHATTAN DEPT OF CHEMISTRY
Pagination or Media Count:
A review of preparative methods for metal sols colloidal metal particles suspended in solution is given. The problems involved with the preparation and stabilization of non-aqueous metal colloidal particles are noted. A new method is described for preparing non-aqueous metal sols based on the clustering of solvated metal atoms from metal vaporization in cold organic solvents. Gold-acetone colloidal solutions are discussed in detail, especially their preparation, control of particle size 2-9 nm, electrophoresis measurements, electron microscopy, GC-MS, resistivity, and related studies. Particle stabilization involves both electrostatic and steric mechanisms and these are discussed in comparison with aqueous systems.
- Physical Chemistry