Effect of Addition Groups on the Redox Properties of Fullerenes

Authors

Louzhen Fan, Insti of Chem., The Chinese Acadany of Scinences, Beijing 100080
Yongfang Li, Insti of Chem., The Chinese Acadany of Scinences, Beijing 100080
Dagui Zheng, Insti of Chem., The Chinese Acadany of Scinences, Beijing 100080
Yuliang Li, Insti of Chem., The Chinese Acadany of Scinences, Beijing 100080
Daoben Zhu, Insti of Chem., The Chinese Acadany of Scinences, Beijing 100080

Corresponding Author

Daoben Zhu

Abstract

Electrochemical properties of fullerene derivatives, including five C₆₀ derivatives and four C₇₀ 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 C₆₀ and C₇₀ monoadducts, 0.30～0.32 V for bisadduct and 0.53～0.58 V for triadduct of C6₀. Meanwhile, the oxidation waves of most of these derivatives appeared on their cyclic voltammograms. Particularly, an irreversible oxidation of the C₇₀ bisadduct took place at +0.45 V (vs. SCE), while that of C6₀ bisadduct was at +0.90 V (vs. SCE), indicating that the electronegativity of C₇₀ 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

1997-07-21

Received Date

1997-04-27

Recommended Citation

Louzhen Fan, Yongfang Li, Dagui Zheng, Yuliang Li, Daoben Zhu. Effect of Addition Groups on the Redox Properties of Fullerenes[J]. Journal of Electrochemistry, 1997 , 3(4): 371-377.
DOI: 10.61558/2993-074X.2658
Available at: https://jelectrochem.xmu.edu.cn/journal/vol3/iss4/6