Journal of Solid State Electrochemistry

, Volume 15, Issue 11–12, pp 2369–2376

Optimizing incorporation of nickel(II)–cyclam complex in poly(3,4-ethylenedioxythiophene) films for catalytic purposes

  • Krzysztof Maksymiuk
  • Marlena Puszcz
  • Katarzyna Szewczyk
  • Agata Michalska
Original Paper
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Abstract

Poly(3,4-ethylenedioxythiopene) (PEDOT) films, due to their porous and open structure, as well as high stability, were chosen as a membrane for incorporation of Ni(II) ion complexes with 1,4,8,11-tetraazacyclotetradecane (cyclam) or deposition of electroactive films containing polymerized complex. Accumulation of the complex in PEDOT layers and its electrocatalytic activity was studied basing on voltammetric behavior of Ni(II)–cyclam and electroxidation of a model reactant-methanol in alkaline solutions. Several modes of complex incorporation were tested, based on open circuit conditioning or polarization in the presence of nickel ions and cyclam. It was found that the most effective method was incorporation of cyclam in the course of PEDOT electrosynthesis, followed by potentiostatic accumulation of Ni(II) ions. This procedure resulted in around 50 times higher slope of dependence of methanol oxidation current on alcohol concentration than in the absence of PEDOT.

Keywords

Nickel(II)–cyclam Poly(3,4-ethylenedioxythiophene) Methanol oxidation Electrocatalysis 

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Krzysztof Maksymiuk
    • 1
  • Marlena Puszcz
    • 1
  • Katarzyna Szewczyk
    • 1
  • Agata Michalska
    • 1
  1. 1.Department of ChemistryWarsaw UniversityWarsawPoland

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