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

doi:10.1016/j.synthmet.2007.09.008

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

29 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 language	English
Pages (from-to)	910-913
Number of pages	4
Journal	Synthetic Metals
Volume	157
Issue number	22-23
DOIs	https://doi.org/10.1016/j.synthmet.2007.09.008
Publication status	Published - 2007 Nov

Keywords

Electrochemical polymerization
Ionic liquid
Nanowire
Polypyrrole

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.synthmet.2007.09.008

Cite this

@article{12322530fc814a7eb6e5b39777518c8b,

title = "Doped and de-doped polypyrrole nanowires by using a BMIMPF6 ionic liquid",

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.",

keywords = "Electrochemical polymerization, Ionic liquid, Nanowire, Polypyrrole",

author = "Kim, {Hyun Seung} and Park, {Dong Hyuk} and Lee, {Yong Baek} and Kim, {Dae Chul} and Kim, {Hyun Jun} and Jeongyong Kim and Jinsoo Joo",

note = "Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MOST) (no. R0A-2007-000-20053-0) (2007). ",

year = "2007",

month = nov,

doi = "10.1016/j.synthmet.2007.09.008",

language = "English",

volume = "157",

pages = "910--913",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

number = "22-23",

}

TY - JOUR

T1 - Doped and de-doped polypyrrole nanowires by using a BMIMPF6 ionic liquid

AU - Kim, Hyun Seung

AU - Park, Dong Hyuk

AU - Lee, Yong Baek

AU - Kim, Dae Chul

AU - Kim, Hyun Jun

AU - Kim, Jeongyong

AU - Joo, Jinsoo

N1 - Funding Information: This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MOST) (no. R0A-2007-000-20053-0) (2007).

PY - 2007/11

Y1 - 2007/11

N2 - 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.

AB - 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.

KW - Electrochemical polymerization

KW - Ionic liquid

KW - Nanowire

KW - Polypyrrole

UR - http://www.scopus.com/inward/record.url?scp=37849012671&partnerID=8YFLogxK

U2 - 10.1016/j.synthmet.2007.09.008

DO - 10.1016/j.synthmet.2007.09.008

M3 - Article

AN - SCOPUS:37849012671

SN - 0379-6779

VL - 157

SP - 910

EP - 913

JO - Synthetic Metals

JF - Synthetic Metals

IS - 22-23

ER -