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Electropolymerization and characterization of 3,4‐ethylenedioxy thiophene on glassy carbon electrode and study of ions transport of the polymer during redox process
Author(s) -
Moradi Atefeh,
Emamgolizadeh Abbas,
Omrani Abdollah,
Rostami Abbas Ali.
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36508
Subject(s) - cyclic voltammetry , glassy carbon , crystallinity , redox , materials science , supporting electrolyte , conductive polymer , monomer , nernst equation , polymer , electrolyte , polymer chemistry , voltammetry , chemical engineering , scanning electron microscope , fourier transform infrared spectroscopy , thiophene , electrode , electrochemistry , chemistry , organic chemistry , composite material , engineering , metallurgy
Poly(3,4‐ethylenedioxythiophene) (PEDOTh) films were deposited on glassy carbon (GC) electrodes from organic electrolytes containing the monomer in a solution of acetonitrile (AN). The effect of the supporting electrolyte used during electropolymerization, on the redox behavior, surface morphology, and degree of crystallinity of the films has been investigated by FTIR, cyclic voltammetry, and scanning electron microscopy (SEM) techniques. The use of LiPF 6 leads to a higher electropolymerization efficiency and an increase of electroactivity and crystallinity of the polymer. On the basis of voltammetric studies of the Nernst and Butler–Volmer equations, we concluded that BF 4 − , ClO 4 − , and PF 6 − anions are the mobile species during the redox process of the PEDOTh films. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012