An in situ synthesis of polyaniline/reduced graphene oxide nanocomposite flexible thin film on PET for the room temperature detection of trace level ammonia at ppb level

Kundu, Sukumar; Majumder, Rahul; Bhagat, B.R.; Roy, Subhadip; Gayen, R.N.; Dashora, Alpa; Chowdhury, Manish Pal

doi:10.1007/s10853-023-08219-7

Cited by 7 publications

(3 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Response values are observed to decrease on either side of this optimal concentration, which has been found that 1 wt% PANI/rGO sensors prepared using a 1 M HCl concentration demonstrate good NH 3 response capabilities, with different sensing response values increasing with increasing NH 3 concentration. 109 The introduction of GO in the PANI/GO system was observed to improve its response values, similar to the enhancement observed in electrical conductivity. The optimal loading of 1 wt% GO resulted in the strongest response value, reaching 31.2 ± 1.8%.…”

Section: Resultssupporting

confidence: 59%

“…Response values are observed to decrease on either side of this optimal concentration, which has been found that 1 wt% PANI/rGO sensors prepared using a 1 M HCl concentration demonstrate good NH 3 response capabilities, with different sensing response values increasing with increasing NH 3 concentration. 109 The introduction of GO in the PANI/GO system was observed to improve its response values, The optimal loading of 1 wt% GO resulted in the strongest response value, reaching 31.2 ± 1.8%. 46 Notably, Gr has shown to play a benecial role in C 7 H 8 and C 6 H 6 gases typically similar to NH 3 sensing measurements which achieved a signicantly higher maximum response compared to other nanocomposite samples.…”

Section: Input Selectionmentioning

confidence: 93%

See 1 more Smart Citation

Enhancing precision in PANI/Gr nanocomposite design: robust machine learning models, outlier resilience, and molecular input insights for superior electrical conductivity and gas sensing performance

Boublia,

Guezzout,

Haddaoui

et al. 2024

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

Section: Resultssupporting

confidence: 59%

“…Response values are observed to decrease on either side of this optimal concentration, which has been found that 1 wt% PANI/rGO sensors prepared using a 1 M HCl concentration demonstrate good NH 3 response capabilities, with different sensing response values increasing with increasing NH 3 concentration. 109 The introduction of GO in the PANI/GO system was observed to improve its response values, The optimal loading of 1 wt% GO resulted in the strongest response value, reaching 31.2 ± 1.8%. 46 Notably, Gr has shown to play a benecial role in C 7 H 8 and C 6 H 6 gases typically similar to NH 3 sensing measurements which achieved a signicantly higher maximum response compared to other nanocomposite samples.…”

Section: Input Selectionmentioning

confidence: 93%

Enhancing precision in PANI/Gr nanocomposite design: robust machine learning models, outlier resilience, and molecular input insights for superior electrical conductivity and gas sensing performance

Boublia,

Guezzout,

Haddaoui

et al. 2024

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

“…The instrumentation used in conjunction with the sensing technique utterly follows our previous articles. 32,33 At first, the device under test (DUT) was mounted inside the sensing chamber having volume of 150 cc. The sensing chamber was made out of stainless steel (SS).…”

Section: Sensing Methodologymentioning

confidence: 99%

Superior ammonia sensing properties of PET‐supported polyaniline/reduced graphene oxide/zinc ferrite ternary nanocomposite thin film at room temperature

Kundu,

Majumder,

Pal Chowdhury

2023

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

This article introduces a ternary nanocomposite‐based flexible thin film ammonia sensor developed on transparent polyethylene terephthalate (PET) substrate in the well‐known in situ chemical oxidative polymerization technique. The nanocomposite consists of three different materials: polyaniline (PANI), reduced graphene oxide (rGO), and zinc ferrite (ZF). Keeping the PANI amount constant, seven PANI/rGO/ZF (PRZ) samples are produced by performing stoichiometric variation between rGO and ZF. Later on, various structural, morphological, and spectroscopic analysis of all the composite materials is accomplished with field emission scanning electron microscopy (FESEM), high‐resolution transmission electron microscopy (HRTEM), X‐ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), and ultraviolet–visible spectroscopy (UV–Vis). The sensing performance of the as‐produced sensors toward ammonia (NH3) is examined in the concentration range from 250 ppb to 100 ppm. The study reveals the excellent sensing ability of the PRZ3 sensor (rGO = 30%, ZF = 20%) achieving minimum and maximum responsivity values of ~51% and ~1052%, respectively, at the lowest (250 ppb) and highest (100 ppm) concentration of ammonia. The sensor also exhibits admirable repeatability, good dynamic responsivity, rapid response (tres ~2.9–5 s), moderately faster recovery (trec ~37.9–69.7 s), superb linearity against ppm variation (R2 ~ 0.989), low detection limit (~123 ppb), and exceptional selectivity toward ammonia. The substrate temperature variation divulges that room temperature (30°C) is the ideal temperature for getting outstanding responsivity of the sensor. The study is further accompanied by humidity variation in the incoming air and bending flexibility test of the substrate. A compulsory and legitimate model regarding the sensing mechanism is presented at the end.

show abstract

A review on polyaniline and its composites: from synthesis to properties and progressive applications

Sharma,

Singh,

Kumar

et al. 2024

J Mater Sci

View full text Add to dashboard Cite

An in situ synthesis of polyaniline/reduced graphene oxide nanocomposite flexible thin film on PET for the room temperature detection of trace level ammonia at ppb level

Cited by 7 publications

References 69 publications

Enhancing precision in PANI/Gr nanocomposite design: robust machine learning models, outlier resilience, and molecular input insights for superior electrical conductivity and gas sensing performance

Enhancing precision in PANI/Gr nanocomposite design: robust machine learning models, outlier resilience, and molecular input insights for superior electrical conductivity and gas sensing performance

Superior ammonia sensing properties of PET‐supported polyaniline/reduced graphene oxide/zinc ferrite ternary nanocomposite thin film at room temperature

A review on polyaniline and its composites: from synthesis to properties and progressive applications

Contact Info

Product

Resources

About