REFRACTIVE AND ELECTROPHYSICAL PROPERTIES OF DISPERSED SOLUTIONS OF FULLERENE C60 IN BINARY SOLVENTS

An experimental study has been made of the infl uence of the concentration of a solvent and a solute on the clusterization of fullerene C₆₀ molecules in a C₆₀/xylol/hexane solution by refractometry methods. By the methods of dynamic light scattering and transmission electron microscopy, it has been established that when a nonequilibrium method of preparation of a fullerene C60 solution in binary mixtures (xylol + hexane) is employed negatively charged clusters of diameters ~60–70 nm are formed in the solution. It has been established that the high aggregative stability of the solution of fullerene with a concentration of C₆₀ of ~0.036 g/L is determined by the relatively high values of the electrokinetic ζ potential of nanoclusters (ζ = –26.6–28.2 mV).
   
Author:  U. K. Makhmanov
Keywords:  fullerene C60, mixtures of solvents, refractive index, electrokinetic potential, microscopy
Page:  527