Influence of the polymerization method on the oxygen reduction reaction pathway on PEDOT

Robert Kerr, Cristina Pozo-Gonzalo, Maria Forsyth, Bjorn Winther Jensen

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The influence of the polymerization method of poly(3,4- ethylenedioxythiophene) (PEDOT), namely vapor-phase polymerization (VPP-PEDOT) or electrodeposition (EP-PEDOT), on the electrocatalytic properties is herein reported. Rotating disk electrode and rotating ring-disk electrode studies in alkaline conditions have shown that as the electrode potential is scanned in the negative direction the oxygen reduction reaction (ORR) on VPP-PEDOT undergoes a transition from a 2-electron pathway to a 4-electron pathway at 0.45 V (vs Ag/AgCl). In contrast, the ORR proceeds only by the 2-electron pathway on EP-PEDOT.

Original languageEnglish
JournalECS Electrochemistry Letters
Volume2
Issue number3
DOIs
Publication statusPublished - 2013
Externally publishedYes

Fingerprint

Polymerization
Oxygen
Electrodeposition
Electrodes
Electrons
Vapors
Rotating disks
Electron transitions
poly(3,4-ethylene dioxythiophene)
Direction compound

ASJC Scopus subject areas

  • Electrochemistry
  • Materials Chemistry
  • Fuel Technology

Cite this

Influence of the polymerization method on the oxygen reduction reaction pathway on PEDOT. / Kerr, Robert; Pozo-Gonzalo, Cristina; Forsyth, Maria; Winther Jensen, Bjorn.

In: ECS Electrochemistry Letters, Vol. 2, No. 3, 2013.

Research output: Contribution to journalArticle

Kerr, Robert ; Pozo-Gonzalo, Cristina ; Forsyth, Maria ; Winther Jensen, Bjorn. / Influence of the polymerization method on the oxygen reduction reaction pathway on PEDOT. In: ECS Electrochemistry Letters. 2013 ; Vol. 2, No. 3.
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