Study on the doping process of polyaniline in a thermal solution of poly(styrene sulfonic acid)

Chi Chang Hung, Ten-Chin Wen

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The doping process of polyaniline (PANI) was investigated in a thermal (80°C) solution of poly(styrene sulfonic acid) (PSS). The in situ UV-vis spectra indicated that the doping process at 80°C was completed in 1200s, which is much faster than that at 25°C. Through a kinetic study, the diffusion coefficient of PSS at 80°C was estimated as 0.37×10-16cm2s-1, which is 132-fold higher than that at 25°C (0.28×10-18cm2s-1). The specific characteristics of PANI doped with PSS (PANI-PSS) were checked using X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), cyclic voltammetry (CV), and in situ UV-vis absorption spectroscopy. It was found that the low diffusion rate of PSS at 25°C prevented the release of anions from PANI-PSS even under a negative applied potential. The electrochemical measurements showed that the charge transfer rate and electroactivity of PANI-PSS were much higher than those of PANI-H2SO4 in a neutral solution.

Original languageEnglish
Pages (from-to)371-376
Number of pages6
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume42
Issue number2
DOIs
Publication statusPublished - 2011 Mar 1

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Styrene
Sulfonic Acids
Polyaniline
Doping (additives)
Acids
Auger electron spectroscopy
Ultraviolet spectroscopy
Absorption spectroscopy
Cyclic voltammetry
Anions
Charge transfer
Negative ions
X ray photoelectron spectroscopy
Hot Temperature
polyaniline
Kinetics

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

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abstract = "The doping process of polyaniline (PANI) was investigated in a thermal (80°C) solution of poly(styrene sulfonic acid) (PSS). The in situ UV-vis spectra indicated that the doping process at 80°C was completed in 1200s, which is much faster than that at 25°C. Through a kinetic study, the diffusion coefficient of PSS at 80°C was estimated as 0.37×10-16cm2s-1, which is 132-fold higher than that at 25°C (0.28×10-18cm2s-1). The specific characteristics of PANI doped with PSS (PANI-PSS) were checked using X-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), cyclic voltammetry (CV), and in situ UV-vis absorption spectroscopy. It was found that the low diffusion rate of PSS at 25°C prevented the release of anions from PANI-PSS even under a negative applied potential. The electrochemical measurements showed that the charge transfer rate and electroactivity of PANI-PSS were much higher than those of PANI-H2SO4 in a neutral solution.",
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Study on the doping process of polyaniline in a thermal solution of poly(styrene sulfonic acid). / Hung, Chi Chang; Wen, Ten-Chin.

In: Journal of the Taiwan Institute of Chemical Engineers, Vol. 42, No. 2, 01.03.2011, p. 371-376.

Research output: Contribution to journalArticle

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