Abstract
Conditions are studied for the synthesis of water dispersions of polymer composites containing palladium and the possibility of their use for the fabrication of modified electrodes is estimated. Water dispersions of the polymer poly(3,4-ethylenedioxythiophene), including a polystyrene sulfate polyanion (PEDOT:PSS) and Pd particles, were obtained by the redox reaction of Pd(II) with the polymer. The electrochemical behavior of composite PEDOT:PSS/Pd films in the medium of a phosphate buffer solution with pH 6.86 is studied. It is shown that, in the presence of hydrazine in a phosphate buffer solution, one wave of hydrazine oxidation on metal inclusions, Pd particles, is observed on the electrode. Specific features of the process of hydrazine oxidation are studied and a possibility using the obtained material for the creation of an electrochemical sensor for hydrazine is demonstrated.
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Original Russian Text © E.G. Tolstopyatova, Ya.K. Saidova, A.M. Smolin, N.P. Novoselov, V.V. Kondrat’ev, 2016, published in Zhurnal Analiticheskoi Khimii, 2016, Vol. 71, No. 2, pp. 201–207.
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Tolstopyatova, E.G., Saidova, Y.K., Smolin, A.M. et al. Synthesis of a Water Dispersion of the PEDOT:PSS/Pd Composite and Its Use for the Fabrication of an Electrochemical Sensor for Hydrazine. J Anal Chem 71, 195–200 (2016). https://doi.org/10.1134/S1061934816020131
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DOI: https://doi.org/10.1134/S1061934816020131