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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| Format: | Article |
| Language: | English |
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Elsevier
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/89091/ http://psasir.upm.edu.my/id/eprint/89091/1/ABSTRACT.pdf |
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| author | Ismail, Abdul Hadi Mohd Yahya, Nor Akmar Mahdi, Mohd Adzir Yaacob, Mohd Hanif Sulaiman, Yusran |
| author_facet | Ismail, Abdul Hadi Mohd Yahya, Nor Akmar Mahdi, Mohd Adzir Yaacob, Mohd Hanif Sulaiman, Yusran |
| author_sort | Ismail, Abdul Hadi |
| building | UPM Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T12:50:31Z |
| format | Article |
| id | upm-89091 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:50:31Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
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| spelling | upm-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 |
| 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 |
| title | 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_short | 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 |
| url | http://psasir.upm.edu.my/id/eprint/89091/ http://psasir.upm.edu.my/id/eprint/89091/ http://psasir.upm.edu.my/id/eprint/89091/ http://psasir.upm.edu.my/id/eprint/89091/1/ABSTRACT.pdf |