Development of PPy films doped with thiol-SAM-Cu particles for NH 3 gas sensing

Toshinori Shimanouchi; Seiichi Morita; Ho Sup Jung; Yoshiaki Sakurai; Yoshihiko Suzuki; Ryoichi Kuboi

Development of PPy films doped with thiol-SAM-Cu particles for NH ₃ gas sensing

Toshinori Shimanouchi, Seiichi Morita, Ho Sup Jung, Yoshiaki Sakurai, Yoshihiko Suzuki, Ryoichi Kuboi

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

Abstract

We have developed a high-sensitivity polypyrrole (PPy) film with a porous structure using a simple and easy method of doping thiol self-assembled monolayer (SAM)-Cu particles into a PPy film. The thiol-Cu-SAM particles were doped by the adsorption of thioxylenol or decanethiol into the porous PPy film surface, resulting in an improvement in sensitivity of the film to NH ₃. Owing to the addition of thiol-Cu-SAM particles formed using various 4-tert-butylcalix-6-arene thiol derivatives, the sensitivity correspondingly decreased. In particular, for the case of poly(propylene oxide)-calix-6-arenethiol, a marked decrease in sensitivity was observed. Using this composite nanomaterial, we found that the detection limit for NH ₃ increased to concentration levels of several ppm. We present a novel preparation method for these sensor films aimed at controlling their porosity and sensitivity.

Original language	English
Pages (from-to)	255-265
Number of pages	11
Journal	Sensors and Materials
Volume	16
Issue number	5
Publication status	Published - Jan 1 2004
Externally published	Yes

Keywords

Electrochemical polymerization
NH gas sensing
Polypyrrole
Thiol-SAM-Cu particle

ASJC Scopus subject areas

Instrumentation
Materials Science(all)

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title = "Development of PPy films doped with thiol-SAM-Cu particles for NH 3 gas sensing",

abstract = "We have developed a high-sensitivity polypyrrole (PPy) film with a porous structure using a simple and easy method of doping thiol self-assembled monolayer (SAM)-Cu particles into a PPy film. The thiol-Cu-SAM particles were doped by the adsorption of thioxylenol or decanethiol into the porous PPy film surface, resulting in an improvement in sensitivity of the film to NH 3. Owing to the addition of thiol-Cu-SAM particles formed using various 4-tert-butylcalix-6-arene thiol derivatives, the sensitivity correspondingly decreased. In particular, for the case of poly(propylene oxide)-calix-6-arenethiol, a marked decrease in sensitivity was observed. Using this composite nanomaterial, we found that the detection limit for NH 3 increased to concentration levels of several ppm. We present a novel preparation method for these sensor films aimed at controlling their porosity and sensitivity.",

keywords = "Electrochemical polymerization, NH gas sensing, Polypyrrole, Thiol-SAM-Cu particle",

author = "Toshinori Shimanouchi and Seiichi Morita and Jung, {Ho Sup} and Yoshiaki Sakurai and Yoshihiko Suzuki and Ryoichi Kuboi",

year = "2004",

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language = "English",

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journal = "Sensors and Materials",

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TY - JOUR

T1 - Development of PPy films doped with thiol-SAM-Cu particles for NH 3 gas sensing

AU - Shimanouchi, Toshinori

AU - Morita, Seiichi

AU - Jung, Ho Sup

AU - Sakurai, Yoshiaki

AU - Suzuki, Yoshihiko

AU - Kuboi, Ryoichi

PY - 2004/1/1

Y1 - 2004/1/1

N2 - We have developed a high-sensitivity polypyrrole (PPy) film with a porous structure using a simple and easy method of doping thiol self-assembled monolayer (SAM)-Cu particles into a PPy film. The thiol-Cu-SAM particles were doped by the adsorption of thioxylenol or decanethiol into the porous PPy film surface, resulting in an improvement in sensitivity of the film to NH 3. Owing to the addition of thiol-Cu-SAM particles formed using various 4-tert-butylcalix-6-arene thiol derivatives, the sensitivity correspondingly decreased. In particular, for the case of poly(propylene oxide)-calix-6-arenethiol, a marked decrease in sensitivity was observed. Using this composite nanomaterial, we found that the detection limit for NH 3 increased to concentration levels of several ppm. We present a novel preparation method for these sensor films aimed at controlling their porosity and sensitivity.

AB - We have developed a high-sensitivity polypyrrole (PPy) film with a porous structure using a simple and easy method of doping thiol self-assembled monolayer (SAM)-Cu particles into a PPy film. The thiol-Cu-SAM particles were doped by the adsorption of thioxylenol or decanethiol into the porous PPy film surface, resulting in an improvement in sensitivity of the film to NH 3. Owing to the addition of thiol-Cu-SAM particles formed using various 4-tert-butylcalix-6-arene thiol derivatives, the sensitivity correspondingly decreased. In particular, for the case of poly(propylene oxide)-calix-6-arenethiol, a marked decrease in sensitivity was observed. Using this composite nanomaterial, we found that the detection limit for NH 3 increased to concentration levels of several ppm. We present a novel preparation method for these sensor films aimed at controlling their porosity and sensitivity.

KW - Electrochemical polymerization

KW - NH gas sensing

KW - Polypyrrole

KW - Thiol-SAM-Cu particle

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