Effect of Addition Groups on the Redox Properties of Fullerenes

Authors

Louzhen Fan
Yongfang Li
Dagui Li Yuliang Zheng
Daoben Zhu

Abstract

Electrochemical properties of fullerene derivatives, including five C60 derivatives and four C70 derivatives, were studied systematically and comparatively by cyclic voltammetry and differential pulse wave voltammetry. The addition of the electrondonating groups on the fullerenes caused negative shift of the redox potentials of the fullerenes. The extent of the negative shift depends on the number and properties of the addition groups, and on the nature of the fullerenes. 0.08～0.20 V negative shift was observed for C60 and C70 monoadducts, 0.30～0.32 V for bisadduct and 0.53～0.58 V for triadduct of C60. Meanwhile, the oxidation waves of most of these derivatives appeared on their cyclic voltammograms. Particularly, an irreversible oxidation of the C70 bisadduct took place at +0.45 V (vs. SCE), while that of C60 bisadduct was at +0.90 V (vs. SCE), indicating that the electronegativity of C70 was greatly reduced by the bisaddition of the electrondonating groups.

DOI Link

https://doi.org/10.61558/2993-074X.2658

Publication Date

1997-11-28

Online Available Date

1997-11-28

Revised Date

1997-11-28

Received Date

1997-11-28

Recommended Citation

Louzhen Fan, Yongfang Li, Dagui Li Yuliang Zheng, Daoben Zhu. Effect of Addition Groups on the Redox Properties of Fullerenes[J]. Journal of Electrochemistry, 1997 , 3(4): Article 6.
DOI: 10.61558/2993-074X.2658
Available at: https://jelectrochem.xmu.edu.cn/journal/vol3/iss4/6

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