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Electrochemical reduction of dioxygen on a thioglycolic acid-capped CdTe quantum dots modified glassy carbon electrode

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Abstract

A novel modified electrode was constructed by immobilizing thioglycolic acid-capped CdTe quantum dots (QDs) on a glassy carbon electrode (GCE) using Nafion ionomers. The results obtained by electrochemical impedance spectroscopy, cyclic voltammetry, and rotating disk electrode using the modified QDs–Nafion/GCE in a 0.20 M phosphate buffer of pH 7.0 revealed that the QDs act as effective mediators for the electrocatalytic reduction of dioxygen.

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Authors and Affiliations

  1. NFCRI, NSTRI, Tehran, Iran

    Mehdi Asgari, Mahsa Behzad & Mohammad Ghannadi Maragheh

  2. Department of Chemistry, Tarbiat Modares University, Tehran, Iran

    Maryam Shanehsaz

  3. Department of Chemistry, Razi University, Kermanshah, Iran

    Mojtaba Shamsipur

Authors
  1. Mehdi Asgari
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  2. Maryam Shanehsaz
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  3. Mojtaba Shamsipur
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  4. Mahsa Behzad
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  5. Mohammad Ghannadi Maragheh
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Correspondence to Mehdi Asgari.

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Asgari, M., Shanehsaz, M., Shamsipur, M. et al. Electrochemical reduction of dioxygen on a thioglycolic acid-capped CdTe quantum dots modified glassy carbon electrode. J Appl Electrochem 43, 15–19 (2013). https://doi.org/10.1007/s10800-012-0495-0

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  • DOI: https://doi.org/10.1007/s10800-012-0495-0

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