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Electropolymerization of benzotriazole in room temperature ionic liquid [bmim]PF6

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Abstract

The electropolymerization of benzotriazole on an Au electrode was investigated via cyclic voltammetry and chronoamperometry in a room temperature ionic liquid medium, 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim]PF6) containing glacial acetic acid. The chronoamperometric investigation revealed that the instantaneous nucleation predominated the potentiostatic electropolymerization of benzotriazole at the oxidation peak potential. Scanning electron microscopy indicated that the polymer film was compact and relatively smooth and infrared spectroscopy suggested the polymer chains were formed mainly via coupling of the unsaturated nitrogen atoms. The polymer was found to be highly electroactive, showing a quasi-reversible and stable pair of redox peaks centering at 0.9 V versus Ag/AgCl in 0.1 mol L−1 H2SO4.

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Acknowledgements

This work was supported by the Foundation of Key State Laboratory of Chemo/Biosensing and Chemometrics of Hunan University (200706).

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Authors and Affiliations

  1. State key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, People’s Republic of China

    Z. Zhou, D. L. He, R. H. Yang, Y. N. Guo, J. F. Zhong & G. X. Li

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  1. Z. Zhou
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  2. D. L. He
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  3. R. H. Yang
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  4. Y. N. Guo
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  5. J. F. Zhong
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  6. G. X. Li
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Correspondence to D. L. He.

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Zhou, Z., He, D.L., Yang, R.H. et al. Electropolymerization of benzotriazole in room temperature ionic liquid [bmim]PF6 . J Appl Electrochem 38, 1757–1761 (2008). https://doi.org/10.1007/s10800-008-9627-y

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  • DOI: https://doi.org/10.1007/s10800-008-9627-y

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