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Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas

The optical NH3 gas sensing performance of polyaniline (PANI) and poly(3,4-ethylenedioxythiophene (PEDOT) in the form of bilayers and copolymers was analysed in this study. The order of the bilayers and the presence of acid dopant on the fabrication of the sensing platform produced different absorba...

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Main Authors: Ismail, Abdul Hadi, Mohd Yahya, Nor Akmar, Mahdi, Mohd Adzir, Yaacob, Mohd Hanif, Sulaiman, Yusran
Format: Article
Language:English
Published: Elsevier 2020
Online Access:http://psasir.upm.edu.my/id/eprint/89091/1/ABSTRACT.pdf
http://psasir.upm.edu.my/id/eprint/89091/
https://www.sciencedirect.com/science/article/pii/S0032386120301518
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spelling my.upm.eprints.890912021-10-07T02:59:53Z http://psasir.upm.edu.my/id/eprint/89091/ Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas Ismail, Abdul Hadi Mohd Yahya, Nor Akmar Mahdi, Mohd Adzir Yaacob, Mohd Hanif Sulaiman, Yusran The optical NH3 gas sensing performance of polyaniline (PANI) and poly(3,4-ethylenedioxythiophene (PEDOT) in the form of bilayers and copolymers was analysed in this study. The order of the bilayers and the presence of acid dopant on the fabrication of the sensing platform produced different absorbance responses upon exposure to NH3 gas. The limit of detection of the bilayer (PANI(aq.)/PEDOT(aq.)) was 7.86 ppm which is under the threshold limit value of NH3, with response and recovery times of 2.33 min and 46.8 s, respectively. The gasochromic behaviour of PANI and PEDOT during the adsorption of NH3 gas was closely related to the changes in the oxidation state which have simultaneously altered the colour intensity of the respective sensing layer. Elsevier 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/89091/1/ABSTRACT.pdf Ismail, Abdul Hadi and Mohd Yahya, Nor Akmar and Mahdi, Mohd Adzir and Yaacob, Mohd Hanif and Sulaiman, Yusran (2020) Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas. Polymer, 192. art. no. 122313. pp. 1-7. ISSN 0032-3861 https://www.sciencedirect.com/science/article/pii/S0032386120301518 10.1016/j.polymer.2020.122313
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The optical NH3 gas sensing performance of polyaniline (PANI) and poly(3,4-ethylenedioxythiophene (PEDOT) in the form of bilayers and copolymers was analysed in this study. The order of the bilayers and the presence of acid dopant on the fabrication of the sensing platform produced different absorbance responses upon exposure to NH3 gas. The limit of detection of the bilayer (PANI(aq.)/PEDOT(aq.)) was 7.86 ppm which is under the threshold limit value of NH3, with response and recovery times of 2.33 min and 46.8 s, respectively. The gasochromic behaviour of PANI and PEDOT during the adsorption of NH3 gas was closely related to the changes in the oxidation state which have simultaneously altered the colour intensity of the respective sensing layer.
format Article
author Ismail, Abdul Hadi
Mohd Yahya, Nor Akmar
Mahdi, Mohd Adzir
Yaacob, Mohd Hanif
Sulaiman, Yusran
spellingShingle Ismail, Abdul Hadi
Mohd Yahya, Nor Akmar
Mahdi, Mohd Adzir
Yaacob, Mohd Hanif
Sulaiman, Yusran
Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas
author_facet Ismail, Abdul Hadi
Mohd Yahya, Nor Akmar
Mahdi, Mohd Adzir
Yaacob, Mohd Hanif
Sulaiman, Yusran
author_sort Ismail, Abdul Hadi
title Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas
title_short Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas
title_full Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas
title_fullStr Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas
title_full_unstemmed Gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to NH3 gas
title_sort gasochromic response of optical sensing platform integrated with polyaniline and poly(3,4-ethylenedioxythiophene) exposed to nh3 gas
publisher Elsevier
publishDate 2020
url http://psasir.upm.edu.my/id/eprint/89091/1/ABSTRACT.pdf
http://psasir.upm.edu.my/id/eprint/89091/
https://www.sciencedirect.com/science/article/pii/S0032386120301518
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score 13.211869

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