EPR spin probe study of carbon nanoparticles hydration properties in aqueous dispersions

Abstract

The relationship of hydration properties of carbon nanoparticles in aqueous dispersions and stability of these dispersions with respect to aggregation have been studied using EPR spin probing of frozen dispersions. Aqueous dispersions of shungite carbon nanoparticles at different concentrations and aqueous colloids of fullerenes C60/C70 have been compared. Characteristic features of the bounded water have been shown to correlate with a decrease of aqueous dispersions stability to aggregation. © 2007 Springer.