INFLUENCES OF ELECTRODE SURFACE-STRUCTURE AND ORGANIC ADDITIVES ON THE ELECTROREDUCTION OF FULLERENE

The influences of:electrode surface structure and organic additives su ch as aniline and o-aminophenol on the electroreduction of fullerene a re investigated in this paper, It is found that the activity of electr oreduction of fullerene and fulleride anions is dependent on the elect rode surface structure, The reduction current of fullerene at polycrys tal electrode is higher than those at Pt(111) and Pt(110), Some negati ve shifts of reduction potential of C-60(-) and C-60(2-) at Pt(111) an d Pt(110) are observed, In addition, the effects of some organic addit ives, such as aniline and o-aminophenol on the reduction of fullerene are also investigated, Different reduction mechanisms are proposed for these two systems, i.e. one is due to the formation of C-60-aniline c omplex, the other is due to chemical reaction between C-60(-) with o-a minophenol in the reduction process.