Electrochemical grafting of poly(3,4-ethylenedioxythiophene) into a titanium dioxide nanotube host network

Csaba JanÁky, Gábor Bencsik, Árpád RÁcz, C. Visy, Norma R. De Tacconi, Wilaiwan Chanmanee, Krishnan Rajeshwar

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

This study focuses on electrodeposition for infiltrating in situ a conducting polymer such as poly(3,4-ethylenedioxythiophene) (PEDOT) into a host titanium dioxide (TiO2) nanotube array (NTA) framework. The TiO 2 NTA was electrosynthesized on titanium foil in turn by anodization in a fluoride-containing medium. The PEDOT layer was electrografted into the TiO2 NTA framework using a two-step potentiostatic growth protocol in acetonitrile containing supporting electrolyte. The nanoscopic features of oligomer/polymer infiltration and deposition in the NTA interstitial voids were monitored by field-emission scanning electron microscopy. Systematic changes in the nanotube inner diameter and the wall thickness afforded insights into the evolution of the TiO2NTA/PEDOT hybrid assembly. This assembly was subsequently characterized by UV-visible diffuse reflectance, cyclic voltammetry, and photoelectrochemical measurements. These data serve as a prelude to further use of these hybrids in heterojunction solar cells.

Original languageEnglish
Pages (from-to)13697-13702
Number of pages6
JournalLangmuir
Volume26
Issue number16
DOIs
Publication statusPublished - Aug 17 2010

Fingerprint

titanium oxides
Titanium dioxide
Nanotubes
nanotubes
assembly
Conducting polymers
conducting polymers
infiltration
Titanium
Acetonitrile
Fluorides
oligomers
Oligomers
Infiltration
Electrodeposition
electrodeposition
Field emission
Metal foil
Electrolytes
Cyclic voltammetry

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

JanÁky, C., Bencsik, G., RÁcz, Á., Visy, C., De Tacconi, N. R., Chanmanee, W., & Rajeshwar, K. (2010). Electrochemical grafting of poly(3,4-ethylenedioxythiophene) into a titanium dioxide nanotube host network. Langmuir, 26(16), 13697-13702. https://doi.org/10.1021/la101300n

Electrochemical grafting of poly(3,4-ethylenedioxythiophene) into a titanium dioxide nanotube host network. / JanÁky, Csaba; Bencsik, Gábor; RÁcz, Árpád; Visy, C.; De Tacconi, Norma R.; Chanmanee, Wilaiwan; Rajeshwar, Krishnan.

In: Langmuir, Vol. 26, No. 16, 17.08.2010, p. 13697-13702.

Research output: Contribution to journalArticle

JanÁky, C, Bencsik, G, RÁcz, Á, Visy, C, De Tacconi, NR, Chanmanee, W & Rajeshwar, K 2010, 'Electrochemical grafting of poly(3,4-ethylenedioxythiophene) into a titanium dioxide nanotube host network', Langmuir, vol. 26, no. 16, pp. 13697-13702. https://doi.org/10.1021/la101300n
JanÁky, Csaba ; Bencsik, Gábor ; RÁcz, Árpád ; Visy, C. ; De Tacconi, Norma R. ; Chanmanee, Wilaiwan ; Rajeshwar, Krishnan. / Electrochemical grafting of poly(3,4-ethylenedioxythiophene) into a titanium dioxide nanotube host network. In: Langmuir. 2010 ; Vol. 26, No. 16. pp. 13697-13702.
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