Nanostructured conducting polypyrrole film prepared by chemical vapor deposition on the interdigital electrodes at room temperature under atmospheric condition and its application as gas sensor

Alizadeh, Naader; Ataei, Ali; Pirsa, Sajad

doi:10.1007/s13738-015-0631-y

Cited by 35 publications

(21 citation statements)

References 25 publications

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“…With a heating plate, the device is able to detect as low as 350 ppb of ammonia. Using a similar polymerization technique, Alizadeh et al [51] reported a room temperature VOC sensor based on polypyrrole (PPy). In this work, the solution of Fe(III) chloride was first spread on Cu-IDEs, and the pyrrole vapor is introduced for PPy film growth.…”

Section: Chemical and Biological Sensingmentioning

confidence: 99%

CVD Polymers for Devices and Device Fabrication

et al. 2016

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Chemical vapor deposition (CVD) polymerization directly synthesizes organic thin films on a substrate from vapor phase reactants. Dielectric, semiconducting, electrically conducting, and ionically conducting CVD polymers have all been readily integrated into devices. The absence of solvent in the CVD process enables the growth of high-purity layers and avoids the potential of dewetting phenomena, which lead to pinhole defects. By limiting contaminants and defects, ultrathin (<10 nm) CVD polymeric device layers have been fabricated in multiple laboratories. The CVD method is particularly suitable for synthesizing insoluble conductive polymers, layers with high densities of organic functional groups, and robust crosslinked networks. Additionally, CVD polymers are prized for the ability to conformally cover rough surfaces, like those of paper and textile substrates, as well as the complex geometries of micro- and nanostructured devices. By employing low processing temperatures, CVD polymerization avoids damaging substrates and underlying device layers. This report discusses the mechanisms of the major CVD polymerization techniques and the recent progress of their applications in devices and device fabrication, with emphasis on initiated CVD (iCVD) and oxidative CVD (oCVD) polymerization.

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Section: Chemical and Biological Sensingmentioning

confidence: 99%

CVD Polymers for Devices and Device Fabrication

et al. 2016

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“…DLLME method was applied for extraction and preconcentration of n-butylamine from aqueous solutions. Analysis was carried out under optimum conditions used in our previous work [46]. The optimum conditions were as follow: the sample pH: 13, chloroform and acetone as the extraction solvent and the disperser solvent, respectively, extraction solvent volume: 50 µL, disperser solvent volume: 1.5 mL.…”

Section: Application Of Es-ppy Gas Sensor To Real Sample Analysismentioning

confidence: 99%

Electrospun soluble conductive polypyrrole nanoparticles for fabrication of highly selective n-butylamine gas sensor

Akbarinejad

Ghoorchian

Kamalabadi

et al. 2016

Sensors and Actuators B: Chemical

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A three-dimensional and highly porous polypyrrole (PPy) film was successfully coated onto a copper interdigital electrode (Cu-IDE) surface by electrospinning of soluble PPy nanoparticles.The chemical composition of PPy nanoparticles was analyzed using X-ray photoelectron spectroscopy (XPS) and fourier transform infrared spectroscopy (FT-IR). The Brunauer-Emmett-Teller (BET) analysis confirmed the porous nature of PPy nanoparticles. The field emission scanning electron microscopy (FE-SEM) images of polymer coated Cu-IDE revealed that PPy nanoparticles were assembled by electrical forces to form an outstanding honeycomb-like architecture. As a proof-of-concept demonstration of the functional properties of the electrospun PPy (Es-PPy) film, the polymer coated Cu-IDE was investigated as a sensing device for gas sensor.The as-prepared Es-PPy film proved to be a viable aliphatic amines sensing material with large response, low detection limit, fast response and good repeatability at a low operating temperature of 150˚C. Moreover, the sensor demonstrated an extremely high sensitivity and selectivity to nbutylamine. The calibration sensitivity to n-butylamine is up to three orders of magnitude higher than that of other common aliphatic amines. The detection limit and linear range for determination of n-butylamine were 0.42 ppm and 10.54-21.08 ppm, respectively. Es-PPy gas sensor exhibited good repeatability with RSD ≤ 8% at temperature ranges 90-200°C. The response of the Es-PPy sensor to n-butylamine was compared with electrochemically and drop coated sensors and found that it has an extremely higher response. Finally, the Es-PPy gas sensor was successfully applied to real well water sample analysis.

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“…The conductive polymers with a high‐level nanoscale structure, small dimensions and unique mechanical properties are used to make a variety of sensors as a signal transducer (Zeng, Luo, Zhang, & Tang, 2018). The most important property of conductive polymers is their inherent electrical conductivity and have some advantages such as high sensitivity and selectivity due to their chemical and structural variation compared to their inorganic counterparts (Alizadeh, Ataei, & Pirsa, 2015; Chavoshizadeh, Pirsa, & Mohtarami, 2020; Pirsa & Mohammad Nejad, 2017). The first detected conductive polymer, polyacetylene, reveals the secrets of many conductive polymers, but is not a functional material due to insolubility in solvents and instability in the environment.…”

Section: Introductionmentioning

confidence: 99%

Design and fabrication of a portable instrument based on elastic fiber/nano‐polypyrrole for evaluating of tensile properties of food samples

Mahmoodpour

Esmaiili

Pirsa

2021

J Food Process Engineering

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In this study, polypyrrole nanoparticles were synthesized by chemical methods on polyester elastic substrates. SEM images represent the uniform distribution of polypyrrole nanoparticles. Using polypyrrole modified fiber, the analysis system was designed and used as a portable texture analyzer to measure the mechanical properties of food samples. In the designed system, there was a linear and significant relationship between the changes of applied force and the electrical resistance of the elastic fiber. In this device, changes in the applied force can be obtained by tracking changes in electrical resistance. After obtaining a linear relationship between the force and electrical resistance changes for each fiber, the optimal sensor was selected by high sensitivity, the lower detection limit, and higher R2. Subsequently, for the validation of designed device, the biodegradable films based on different materials were used. The results obtained from the designed device and the texture analyzer showed that the designed device has high accuracy and error rate of less than 10%, which indicates the matching of the data obtained from the texture analyzer and the designed device. These results suggest the ability to use a designed device instead of the texture analyzer device to analysis mechanical properties of food samples. Practical application The designed device is very cheap and easy to work with. The device is easily capable of measuring mechanical properties such as stress–strain curves, fracture force, and tensile strength in food products and biodegradable polymers. Due to its portability, this device is capable of on‐site analysis and reduces the cost of material analysis to a great extent.

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Nanostructured conducting polypyrrole film prepared by chemical vapor deposition on the interdigital electrodes at room temperature under atmospheric condition and its application as gas sensor

Cited by 35 publications

References 25 publications

CVD Polymers for Devices and Device Fabrication

CVD Polymers for Devices and Device Fabrication

Electrospun soluble conductive polypyrrole nanoparticles for fabrication of highly selective n-butylamine gas sensor

Design and fabrication of a portable instrument based on elastic fiber/nano‐polypyrrole for evaluating of tensile properties of food samples

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