Ultrahigh sensitive and selective room temperature operable poisonous carbon monoxide gas sensor based on polyaniline ternary composite

Sunilkumar, A.; Khened, B. S.; Chethan, B.; Prasad, V.; Kotresh, M. G.; Sharanakumar, T.M.; Veena, V. S.

doi:10.1016/j.inoche.2023.110476

Cited by 4 publications

(1 citation statement)

References 29 publications

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“…The manipulation and monitoring of the environments surrounding humidity are demanded in various applications in recent years. Inherently, humidity sensors emerged and evolved in versatile areas such as the agricultural sector, food storage, medical devices, and others 1 – 10 . Optimizing the sensor performance concerning stability, detection range, sensitivity, rapid response, fast recovery elapsed durations, and cost-effectiveness is the major challenge facing the employment of humidity sensors and expanding their scope in these directions 11 – 15 .…”

Section: Introductionmentioning

confidence: 99%

Ternary nanocomposite comprising MnO2, GQDs, and PANI as a potential structure for humidity sensing applications

Morsy,

Gomaa,

Abd Elhamid

et al. 2023

Sci Rep

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Humidity sensing has been offering a noticeable contribution in different industrial, medical, and agricultural activities. Here, graphene quantum dots doped with polyaniline (PANI) and MnO2 were successfully prepared. The synthesized system is exposed to a set of structural, morphological, and optical investigations. The apparent crystallite size is less than 30 nm, reflecting the nanoscale of the structure, and thus validating the preparation route as evident on XRD pattern. SEM images show a fibrous structure where polyaniline dominates and covers most of the structure’s surface. The evident bands of the FTIR spectrum are designated to the component used in synthesis confirming the chemical structure of the fabricated system. The humidity sensing study of the synthesized structure is carried out through a wide range of relative humidity (RH) levels range of 11–97%. The response and recovery times of the fabricated structure are found to be around 120 and 220s, respectively.

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