Fenelon, Anna M. and Breslin, Carmel B. (2005) The formation of polypyrrole at iron from 1-butyl-3-methylimidazolium hexafluorophosphate. Journal of the Electrochemical Society, 152 (1). D6-D11. ISSN 0013-4651

Preview

Download (229kB) | Preview

Abstract

The ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate, was used to deposit adherent and highly conducting polypyrrole coatings at pure iron using a simple potentiostatic technique. Adherent and highly conducting polypyrrole films were formed at the iron substrate using potentials in the range from 1.0 to 1.4 V and with pyrrole concentrations between 0.1 and 0.3 mol dm−3. An increase in the applied potential, or the concentration of the monomer, gave rise to an increase in the rate of polymer growth. The polypyrrole-coated iron electrodes were electroactive and remained highly conducting and stable in the ionic liquid. Using electrochemical impedance spectroscopy, the charge-transfer resistance of the uncoated iron electrode was determined as 1.25×104 Ω cm2 compared to the much lower resistance of 1.90×102 Ω cm2 measured for the highly conducting polypyrrole-coated electrode in the ionic liquid. © 2004 The Electrochemical Society. All rights reserved.

Item Type:	Article
Keywords:	conducting polymers; polymer films; thin films; iron; electrodeposition; electrodeposits; polymerisation; electrochemical electrodes; charge exchange; ionic conductivity; voltammetry (chemical analysis); electrochemical impedance spectroscopy; ultraviolet spectra; visible spectra; Fourier transform spectra;
Academic Unit:	Faculty of Science and Engineering > Chemistry
Item ID:	7928
Identification Number:	https://doi.org/10.1149/1.1831211
Depositing User:	Dr. Carmel Breslin
Date Deposited:	15 Feb 2017 16:38
Journal or Publication Title:	Journal of the Electrochemical Society
Publisher:	Electrochemical Society
Refereed:	Yes
Funders:	Enterprise Ireland (EI)
URI:	http://jes.ecsdl.org
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

Repository Staff Only(login required)

Item control page

Downloads

Origin of downloads