Thermal Decomposition of Ozonized C 70 Fullerene and Its Reducing Properties Toward Silver Ions.

Ozonized C70fullerene known as C70ozopolymer or C70fullerene polyoxide was thermally decomposed in a Differential Scanning Calorimeter (DSC). The exothermal decomposition enthalpy was measured together with the activation energy for the thermal decomposition. The decomposition of C70ozopolymer was also studied with FT-IR spectroscopy showing that the thermal treatment at 350°C under N2causes the disappearance of the secondary ozonide groups and a series of the rearrangements of the oxygenated groups present in the compound. The reduction properties of C70ozopolymer were successfully assessed in the formation of silver nanoparticles from an acqueous solution of Ag+ions. [ABSTRACT FROM PUBLISHER]