Journal ArticleDOI
Ammonia sensors based on sensitive polyaniline films
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TLDR
In this paper, a new type of ammonia sensor with polyaniline (electroconducting polymer) as the sensitive element is proposed, which is characterized by high sensitivity, wide range of measured concentrations and high stability of electrical parameters.Abstract:
We propose a new type of ammonia sensor with polyaniline (electroconducting polymer) as the sensitive element. Such sensors are characterized by high sensitivity, wide range of measured concentrations (1–2000 ppm) and high stability of electrical parameters. The use of polyaniline ensures high chemical stability of the sensors in oxidizing ambients. A sensor design based on a silicon chip custom-packed into a linear plastic case is presented. The chip is provided with a system of heaters and thermometers to check the temperature regime of sensor operation. We have studied I – V curves, temperature, concentration and kinetic characteristics of the sensors, as well as their ageing. The possibility for thermoregeneration of the sensor parameters after long-term functioning in an ammonia ambient is emphasized.read more
Citations
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Journal ArticleDOI
Studies on tin oxide-intercalated polyaniline nanocomposite for ammonia gas sensing applications
Nishad G. Deshpande,Nishad G. Deshpande,Y.G. Gudage,Ramphal Sharma,J.C. Vyas,Jitae Kim,Y.P. Lee +6 more
TL;DR: In this article, a tin oxide-intercalated polyaniline (PANI) nanocomposite has been deposited at room temperature, through solution route technique, and the as-grown films were studied for some of the useful physicochemical properties.
Journal ArticleDOI
A review on advances in application of polyaniline for ammonia detection
TL;DR: In this paper, advances in polyaniline-based ammonia detection sensors are summarized, with a special focus on progresses in polymer modification techniques to achieve enhanced sensing performance, including template synthesis, interfacial and high dilution syntheses, multifunctional dopants, template synthesis and self-oxidizing template synthesis.
Journal ArticleDOI
Enhanced Sensitivity and Stability of Room-Temperature NH3 Sensors Using Core–Shell CeO2 Nanoparticles@Cross-linked PANI with p–n Heterojunctions
Lingling Wang,Hui Huang,Songhua Xiao,Daoping Cai,Yuan Liu,Bin Liu,Dandan Wang,Chenxia Wang,Han Li,Yanrong Wang,Qiuhong Li,Taihong Wang +11 more
TL;DR: A room-temperature NH3 gas sensor with high response and great long-term stability, including CeO2 NPs conformally coated by cross-linked PANI hydrogel, including core-shell nanocomposites prepared by in situ polymerization with different weight ratios of CeO 2 NPs and aniline is reported.
Journal ArticleDOI
MOFs for the Sensitive Detection of Ammonia: Deployment of fcu-MOF Thin Films as Effective Chemical Capacitive Sensors
TL;DR: The fabricated MOF-based sensor showed a notable detection sensitivity for NH3 at concentrations down to 1 ppm, with a detection limit appraised to be around 100 ppb (at room temperature) even in the presence of humidity and/or CO2.
Journal ArticleDOI
Influence of polymerization temperature on NH3 response of PANI/TiO2 thin film gas sensor
TL;DR: In this paper, a PANI/titanium dioxide (PANI/TiO 2 ) nanocomposite thin films were processed on a silicon substrate with gold interdigital electrodes by an in-situ self-assembly approach for NH 3 gas-sensing application.
References
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Book
Electronic Properties of Doped Semiconductors
Boris I Shklovskii,A. L. Efros +1 more
TL;DR: In the last fifteen years, there has been a noticeable shift towards impure semiconductors -a shift which came about because it is precisely the impurities that are essential to a number of major semiconductor devices as discussed by the authors.
Journal ArticleDOI
Review: Polyaniline-A novel polymeric material.
TL;DR: The considerable progress which has been made in characterizing and understanding the properties of polyaniline derived from aniline is discussed and the progress towards technological applications is evaluated.
Journal ArticleDOI
Conducting polymer gas sensors
TL;DR: In this paper, solid-state semiconductor gas sensors based on organic sensor elements are reviewed and compared to metal-oxide devices in their sensitivity to toxic gases and their ability to operate at or near room temperature.
Journal ArticleDOI
Electroconducting conjugated polymers: New sensitive matrices to build up chemical or electrochemical sensors. A review☆
TL;DR: In this article, a lifetime of 60 days has been reported for ECP-based biosensors, where the enzyme (glucose oxidase) was included with an anionic electron relay.