Synthesis of a Water Dispersion of the PEDOT:PSS/Pd Composite and Its Use for the Fabrication of an Electrochemical Sensor for Hydrazine

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• 作者：E. G. Tolstopyatova ; Ya. K. Saidova ; A. M. Smolin…
• 关键词：composite materials ; poly(3 ; 4 ; ethylenedioxythiophene) ; Pd particles ; hydrazine ; electroanalysis ; electrochemical sensor ; cyclic voltammetry ; amperometry
• 刊名：Journal of Analytical Chemistry
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：71
• 期：2
• 页码：195-200
• 全文大小：726 KB
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• 作者单位：E. G. Tolstopyatova (1)
  Ya. K. Saidova (1)
  A. M. Smolin (2)
  N. P. Novoselov (2)
  V. V. Kondrat’ev (1)
  
  1. Institute of Chemistry, St. Petersburg State University, Universitetskii pr. 26, Petrodvorets, St. Petersburg, 198504, Russia
  2. Institute of Applied Chemistry and Technology, St. Petersburg State University of Technology and Design, ul. Bo’lshaya Morskaya 18, St. Petersburg, 191186, Russia
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Analytical Chemistry
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-3199

文摘

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.