Ultra-fast, economical and room temperature operating ammonia sensor based on polyaniline/iron oxide hybrid nanocomposites

Chabukswar, Vasant V.; Bora, Manisha; Adhav, Pravin; Diwate, Balasaheb; Salunke‐Gawali, Sunita

doi:10.1007/s00289-019-02703-4

Cited by 10 publications

(2 citation statements)

References 49 publications

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“…In order to overcome this problem, the blending of organic and inorganic nanocomposites materials has been utilized smartly for various gas sensing applications. [19][20][21][22] It is also found that most of the transition metal oxides are n-type semiconductors and may be used for gas sensing purpose. In the present study nanocomposite of PANI with ferrous oxide (𝛼-Fe 2 O 3 ) is prepared in situ and is used for ammonia gas sensing purpose at room temperature.…”

Section: Introductionmentioning

confidence: 99%

PANI/Ferrous Oxide Based Hybrid Material for Ammonia Sensing Applications

Bora,

Chabukswar,

Lamanna

2023

Macromolecular Symposia

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In the present study, polyaniline (PANI) and ferrous oxide (α‐Fe2O3) are amalgamated for ammonia sensing purpose. The hybrid nanocomposite is prepared by a single step in situ chemical oxidative polymerization of aniline in presence of hydrothermally prepared α‐Fe2O3 nanoparticles. The structural and compositional analyses of the hybrid material are fully executed by FTIR, PXRD, and SEM techniques. A naive, exceedingly selective, quickly restorable, and ambient temperature functioning ammonia detecting device is established by using PANI/α‐Fe2O3. The investigation results indicate that the PANI/α‐Fe2O3 hybrid nanocomposite exhibits selective sensing ability towards ammonia vapors. The PANI/α‐Fe2O3 displays excellent response for 5 ppm and maximum response for 100 ppm of ammonia. The response time of the PANI/α‐Fe2O3 sensor is found to be quick with reasonably short recovery time. Due to excellent reusability, good environmental stability, and highly economical synthesis the PANI/α‐Fe2O3 delivers a capable, simple, and efficient sensor system for ammonia detection at ambient temperature.

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Section: Introductionmentioning

confidence: 99%

PANI/Ferrous Oxide Based Hybrid Material for Ammonia Sensing Applications

Bora,

Chabukswar,

Lamanna

2023

Macromolecular Symposia

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“…It is well known that PANI-metal oxide composite can be used to make NH 3 gas receptors at room temperature (Pandeeswari et al, 2022). Based on the use of PANI as a conducting polymer, there are many types of conducting polymer-metal oxide sensors such as PANI--Fe 2 O 3 (Bandgar, Navale, Naushad, et al, 2015;Bandgar et al, 2017;Chabukswar et al, 2019), PANI-SiO 2 (Zhang et al, 2020), PANI-TiO 2 (Zhu et al, 2018) and PANI-ZnO (Patil et al, 2012). Table 4.4 shows the comparisons for the sensing properties of SnO 2 NFs@PANI and previously reported devices.…”

Section: Sample Analysismentioning

confidence: 99%

Enhancement of ammonia gas sensing by metal oxide-polyaniline nanocomposite

Soibang

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Ammonia (NH3) gas is an important chemical in many industries. Employees who work in those industrial areas may exposed to a certain concentration of NH3 which could cause various symptoms such as irritation of skin and eyes and problems in respiratory system. The development of new NH3 sensing material has drawn a great attention. In this study, porous tin dioxide nanofibers (SnO2 NFs) were successfully fabricated by an electrospinning technique. The SnO2 NFs were composited with polyaniline (PANI), conducting polymer and form tin dioxide nanofibers@polyaniline nanocomposite (SnO2 NFs@PANI). The morphology was characterized using SEM-EDS and XRD. The SnO2 NFs@PANI was examined and showed improving and desirable sensing for NH3 gas, which includes a good linearity response in a range of 0.4 - 100 ppm, and a detection limit of 12.4 ppb at room temperature. Furthermore, the present sensor also showed a rapid response and recovery rates of 87 s and 160 s, good selectivity, repeatability, long-term stability, and reproducibility to 10 ppm NH3 at room temperature. Furthermore, the gas sensing mechanisms of NH3 on SnO2 NFs@PANI were also discussed in detail. The enhanced sensing characteristics of nanocomposites were related to the morphology structure and p-n heterojunction between PANI and SnO2 NFs.

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Copper alumina nanoparticles-reinforced poly(pyrrole-co-indole): characterization, dielectric properties and gas-sensing applications

Sankar,

Ramesan

2023

Polym. Bull.

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Ultra-fast, economical and room temperature operating ammonia sensor based on polyaniline/iron oxide hybrid nanocomposites

Cited by 10 publications

References 49 publications

PANI/Ferrous Oxide Based Hybrid Material for Ammonia Sensing Applications

PANI/Ferrous Oxide Based Hybrid Material for Ammonia Sensing Applications

Enhancement of ammonia gas sensing by metal oxide-polyaniline nanocomposite

Copper alumina nanoparticles-reinforced poly(pyrrole-co-indole): characterization, dielectric properties and gas-sensing applications

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