Electrochemical Detection of C606- and C706- in Toluene at Room Temperature

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Electrochemical Detection of C₆₀^6- and C₇₀^6- in Toluene at Room Temperature

ZHANG Mei-Qin, LIU Hui, HU Hu, XIE Shu-Bao, JING Ping, LI Mei-Xian, GAN Liang-Bing, ZHU Zhi-Wei, KOU Yuan, SHAO Yuan-Hua*

Beijing National Laboratory for Molecular Sciences, Green Chemistry Research Center, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Received:2006-06-13 Revised:1900-01-01 Online:2007-04-10 Published:2007-04-10
Contact: SHAO Yuan-Hua

Abstract

Abstract: The complete set of six one-electron reductions of C₆₀ and C₇₀ was observed for the first time in a single organic solvent, toluene, at room temperatures (25±1) ℃ by cyclic voltammetry and differential pulse voltammetry on a Pt disk ultramicroelectrode(UME). A type of room-temperature ionic liquid(RTIL), tetrahexylammonium bis(trifluoromethylsulfonyl)imide(THA-Tf₂N), was found to have an excellent solubility in toluene, and was employed as the supporting electrolyte to increase the conductivity of toluene. This electrochemical system presents a wide potential window down to -3.7 V vs. ferrocenium/ferrocene(Fe⁺/Fe), which essentially allows electrochemical detection of C₆₀^6-and C₇₀^6-at room temperature. We also discussed the reasons why does this RTIL dissolve well in toluene, and the future applications of such system.

Key words: Fullerene, Toluene, Ionic liquid, Room temperature, Electrochemical reduction

CLC Number:

O646

TrendMD:

ZHANG Mei-Qin, LIU Hui, HU Hu, XIE Shu-Bao, JING Ping, LI Mei-Xian, GAN Liang-Bing, ZHU Zhi-Wei, KOU Yuan, SHAO Yuan-Hua*. Electrochemical Detection of C₆₀^6- and C₇₀^6- in Toluene at Room Temperature[J]. Chem. J. Chinese Universities, doi: .

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Electrochemical Detection of C₆₀^6- and C₇₀^6- in Toluene at Room Temperature

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