High Conductivity and Durability Textile Gas Sensor-Based Polyaniline-Decorated-Poly(3,4-ethylenedioxythiophene)/Poly(4-styrenesulfonate) for Ammonia Detection
Issued Date
2022-12-09
Resource Type
eISSN
26376105
Scopus ID
2-s2.0-85142055290
Journal Title
ACS Applied Polymer Materials
Volume
4
Issue
12
Start Page
9006
End Page
9014
Rights Holder(s)
SCOPUS
Bibliographic Citation
ACS Applied Polymer Materials Vol.4 No.12 (2022) , 9006-9014
Suggested Citation
Pattanarat K., Petchsang N., Osotchan T., Tang I.M., Kim Y.H., Jaisutti R. High Conductivity and Durability Textile Gas Sensor-Based Polyaniline-Decorated-Poly(3,4-ethylenedioxythiophene)/Poly(4-styrenesulfonate) for Ammonia Detection. ACS Applied Polymer Materials Vol.4 No.12 (2022) , 9006-9014. 9014. doi:10.1021/acsapm.2c01374 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/84026
Title
High Conductivity and Durability Textile Gas Sensor-Based Polyaniline-Decorated-Poly(3,4-ethylenedioxythiophene)/Poly(4-styrenesulfonate) for Ammonia Detection
Other Contributor(s)
Abstract
Securing the stability of sensing responses under stretching and washing is essential for textile-based wearable gas sensors. Herein, we report textile-based gas sensors composed of polyaniline (PANi)-decorated poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT/PSS) coated on cotton yarn. Without conventional hydrochloric acid (HCl) doping, the PANi/PEDOT/PSS sensor exhibits a high electrical conductivity of 1343 S cm-1, good sensitivity, and excellent stability for detecting ammonia, obviously better than the PEDOT/PSS and PANi/HCl sensors. The ammonia sensing response of the PANi/PEDOT/PSS sensor was 7.54% (at 50 ppm), with a detection limit as low as 5 ppm. The enhanced sensing performance is attributed to the heterostructure of PANi and PEDOT/PSS films and the protonation/deprotonation nature of PANi. It was found that the sensing performance of the PANi/PEDOT/PSS sensor is humidity independent. More importantly, the sensor conductivity and sensing response have shown excellent stability under 1100 stretching/releasing cycles and high durability after 10 washing cycles. The results indicate a potential application of wearable textile sensors for detecting ammonia in an environment.