Doped and de-doped polypyrrole nanowires by using a BMIMPF6 ionic liquid

Hyun Seung Kim, Dong Hyuk Park, Yong Baek Lee, Dae Chul Kim, Hyun Jun Kim, Jeongyong Kim, Jinsoo Joo

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

We electrochemically synthesized π-conjugated polypyrrole (PPy) nanowires by using an environmentally stable and recyclable ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6), as a dopant, based on an anodic alumina oxide (Al2O3) nanoporous template. The de-doped states of the PPy nanowires were obtained from doped PPy nanowires through cyclic voltammetry (CV) using a solution of the catalyst in the BMIMPF6 ionic liquid. We confirmed the de-doped states of PPy nanowires based on a decrease of the bipolaron peak of the ultraviolet and visible (UV-vis) absorbance spectra. The formation of PPy nanowires was visualized by using scanning electron microscopy and transmission electron microscopy. We studied the optical and structural properties of the doped and de-doped PPy nanowires by UV-vis absorbance and Fourier transform-infrared spectra. Our work included obtaining a laser confocal microscope Raman spectra for a single strand of the PPy nanowires.

Original languageEnglish
Pages (from-to)910-913
Number of pages4
JournalSynthetic Metals
Volume157
Issue number22-23
DOIs
Publication statusPublished - 2007 Nov 1

Fingerprint

Ionic Liquids
polypyrroles
Polypyrroles
Ionic liquids
Nanowires
nanowires
liquids
Aluminum Oxide
polypyrrole
visible spectrum
strands
Oxides
Cyclic voltammetry
Raman scattering
Structural properties
Fourier transforms
Microscopes
Alumina
infrared spectra
templates

Keywords

  • Electrochemical polymerization
  • Ionic liquid
  • Nanowire
  • Polypyrrole

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Kim, H. S., Park, D. H., Lee, Y. B., Kim, D. C., Kim, H. J., Kim, J., & Joo, J. (2007). Doped and de-doped polypyrrole nanowires by using a BMIMPF6 ionic liquid. Synthetic Metals, 157(22-23), 910-913. https://doi.org/10.1016/j.synthmet.2007.09.008

Doped and de-doped polypyrrole nanowires by using a BMIMPF6 ionic liquid. / Kim, Hyun Seung; Park, Dong Hyuk; Lee, Yong Baek; Kim, Dae Chul; Kim, Hyun Jun; Kim, Jeongyong; Joo, Jinsoo.

In: Synthetic Metals, Vol. 157, No. 22-23, 01.11.2007, p. 910-913.

Research output: Contribution to journalArticle

Kim, HS, Park, DH, Lee, YB, Kim, DC, Kim, HJ, Kim, J & Joo, J 2007, 'Doped and de-doped polypyrrole nanowires by using a BMIMPF6 ionic liquid', Synthetic Metals, vol. 157, no. 22-23, pp. 910-913. https://doi.org/10.1016/j.synthmet.2007.09.008
Kim, Hyun Seung ; Park, Dong Hyuk ; Lee, Yong Baek ; Kim, Dae Chul ; Kim, Hyun Jun ; Kim, Jeongyong ; Joo, Jinsoo. / Doped and de-doped polypyrrole nanowires by using a BMIMPF6 ionic liquid. In: Synthetic Metals. 2007 ; Vol. 157, No. 22-23. pp. 910-913.
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