Fabrication of polyaniline–graphene/polystyrene nanocomposites for flexible gas sensors

Bhadra, Jolly; Popelka, Anton; Abdulkareem, Asma; Ahmad, Zubair; Touati, Farid; Al‐Thani, Noora

doi:10.1039/c9ra00936a

Cited by 38 publications

(10 citation statements)

References 34 publications

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“…In some cases, the creation of flexible films for ammonia gas sensing requires the proper transfer of the product deposited on the substrate onto a flexible substrate (e.g., PET [ 166 , 215 ], PI [ 216 ], cellulose [ 217 ], PS [ 218 , 219 ], PANI [ 215 ], etc.) or the creation of mats [ 219 ].…”

Section: Methods Of Deposition Of Carbon Nanomaterials On the Subsmentioning

confidence: 99%

Recent Advances in Ammonia Gas Sensors Based on Carbon Nanomaterials

et al. 2021

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This review paper is devoted to an extended analysis of ammonia gas sensors based on carbon nanomaterials. It provides a detailed comparison of various types of active materials used for the detection of ammonia, e.g., carbon nanotubes, carbon nanofibers, graphene, graphene oxide, and related materials. Different parameters that can affect the performance of chemiresistive gas sensors are discussed. The paper also gives a comparison of the sensing characteristics (response, response time, recovery time, operating temperature) of gas sensors based on carbon nanomaterials. The results of our tests on ammonia gas sensors using various techniques are analyzed. The problems related to the recovery of sensors using various approaches are also considered. Finally, the impact of relative humidity on the sensing behavior of carbon nanomaterials of various different natures was estimated.

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Section: Methods Of Deposition Of Carbon Nanomaterials On the Subsmentioning

confidence: 99%

Recent Advances in Ammonia Gas Sensors Based on Carbon Nanomaterials

et al. 2021

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“…which suggests valuable predictions for percolation threshold of CNT in PCNT. When eqn (14) and (22) are replaced into eqn (16) and (17), the volume fraction of networks is calculated.…”

Section: Theoretical Expressionsmentioning

confidence: 99%

“…The electromagnetic shielding and electrical conductivity (summarized as conductivity in this paper) of polymer nanocomposites containing carbon nanotubes (CNT) and graphene provide applications in electronics, biomedical tools, sensors, automobile and aerospace industries. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] The CNT networks are formed above the percolation threshold, i.e. the percolation threshold is the minimum volume fraction of nanoparticles establishing continuous networks.…”

Section: Introductionmentioning

confidence: 99%

Modeling the effect of interfacial conductivity between polymer matrix and carbon nanotubes on the electrical conductivity of nanocomposites

Zare

Rhee

2020

RSC Adv.

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“…Conducting polymers have been used as sensor transducers with inherent electronic, optical, and mechanical transducing properties because of their unique properties [14][15][16]. Considerable efforts have been directed toward the fabrication of nanometer-scale conducting polymers, owing to their beneficial characteristics, such as small size, high surface-to-volume ratio, and amplified signals, to enhance the sensitivity [17][18][19][20]. In recent years, several studies have focused on increasing the surface area of conducting polymer nanomaterials…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Effect of Protonation Control for Resistive Gas Sensor Based on Close-Packed Polypyrrole Nanoparticles

2020

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Conducting polymers are often used as sensor electrodes due to their conjugated chain structure, which leads to high sensitivity and rapid response at room temperature. Numerous studies have been conducted on the structures of conducting polymer nanomaterials to increase the active surface area for the target materials. However, studies on the control of the chemical state of conducting polymer chains and the modification of the sensing signal transfer with these changes have not been reported. In this work, polypyrrole nanoparticles (PPyNPs), where is PPy is a conducting polymer, are applied as a sensor transducer to analyze the chemical sensing ability of the electrode. In particular, the protonation of PPy is adjusted by chemical methods to modify the transfer sensing signals with changes in the polymer chain structure. The PPyNPs that were modified at pH 1 exhibit high sensitivity to the target analyte (down to 1 ppb of NH3) with short response and recovery times of less than 20 s and 50 s, respectively, at 25 °C.

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Fabrication of polyaniline–graphene/polystyrene nanocomposites for flexible gas sensors

Abstract: A flexible thin membrane made of a graphene–PANI nanocomposite decorated PS electrospun fibre as a highly sensitive carbon dioxide gas sensor.

Cited by 38 publications

References 34 publications

Recent Advances in Ammonia Gas Sensors Based on Carbon Nanomaterials

Recent Advances in Ammonia Gas Sensors Based on Carbon Nanomaterials

Modeling the effect of interfacial conductivity between polymer matrix and carbon nanotubes on the electrical conductivity of nanocomposites

Comparative Study on the Effect of Protonation Control for Resistive Gas Sensor Based on Close-Packed Polypyrrole Nanoparticles

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