Optical ammonia gas sensor of poly(3,4-polyethylenedioxythiophene), polyaniline and polypyrrole: a comparative study

Citation

Ismail, Abdul Hadi and Mohd Yahya, Nor Akmar and Yaacob, Mohd Hanif and Mahdi, Mohd Adzir and Sulaiman, Yusran (2020) Optical ammonia gas sensor of poly(3,4-polyethylenedioxythiophene), polyaniline and polypyrrole: a comparative study. Synthetic Metals, 260. art. no. 116294. pp. 1-9. ISSN 0379-6779

Abstract

In this work, the optical sensing performance of three different types of conducting polymers, polyaniline (PANI), poly(3,4-ethylenedioxythiophene) (PEDOT) and polypyrrole (PPy) towards ammonia (NH3) gas has been evaluated. The sensing analyses of the respective conducting polymers were measured in the optimised wavelength ranges that manifest absorbance response upon exposure to NH3 gas. Based on the dynamic response where the respective conducting polymers were exposed to NH3 gas within the concentration range of 0.0625 % to 1 %, PEDOT exhibited the highest sensitivity (9.03/%) towards NH3 gas comparing to PANI and PPy with the detection limit of 2.73 ppm, which is in agreement with their respective conductivity trends.

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Additional Metadata

Item Type:	Article
Divisions:	Faculty of Science Institute of Advanced Technology
DOI Number:	https://doi.org/10.1016/j.synthmet.2020.116294
Publisher:	Elsevier
Keywords:	Optical gas sensor; Ammonia gas sensor; Conducting polymers
Depositing User:	Mohamad Jefri Mohamed Fauzi
Date Deposited:	10 Jan 2022 07:02
Last Modified:	10 Jan 2022 07:02
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.synthmet.2020.116294
URI:	http://psasir.upm.edu.my/id/eprint/86988
Statistic Details:	View Download Statistic

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