Journal ArticleDOI
Sensing characteristics of polypyrrole–poly(vinyl alcohol) methanol sensors prepared by in situ vapor state polymerization
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TLDR
In this paper, a FT-Raman spectroscopy was used to identify the chemical structures of polypyrrole (PPy) and polyvinyl alcohol (PVA) composite sensors.Abstract:
Polypyrrole (PPy)–poly(vinyl alcohol) (PVA) composite and pure polypyrrole methanol sensors were prepared by an in situ vapor state polymerization method and their chemical structures were identified by a FT-Raman spectroscopy. The various electrical sensing behaviors of both types of sensors were systematically investigated by a flow measuring system including mass flow controller (MFC) and bubbling bottle. The incorporation of PVA into the polymer film caused a higher sensitivity than that of pure PPy sensor, while the response and recovery time and long-term stability were worse. The effect of thickness of sensing film was also investigated, and it was found that the thinner film showed higher sensitivity, which indicated that the resistance involved in sensing behavior comes from bulk resistance of sensor rather than surface resistance.read more
Citations
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Electrochemical Sensors Based on Organic Conjugated Polymers
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Review of electronic-nose technologies and algorithms to detect hazardous chemicals in the environment
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Book
Handbook of Gas Sensor Materials: Properties, Advantages and Shortcomings for Applications Volume 2: New Trends and Technologies
TL;DR: The Handbook of Gas Sensor Materials : Properties, Advantages and Shortcomings for Applications Volume 2: New Trends and Technologies as mentioned in this paper is available on our book collections and it comes PDF and EPUB document format.
References
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Journal ArticleDOI
Electrochemical polymerization of pyrrole
TL;DR: The electrochemical polymerization of pyrrole on platinum produces a strongly adhered, durable film with enhanced conductivity and good electrode properties as mentioned in this paper, which can be used to construct a durable film.
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A study of the electrochemical properties of conducting polymers for application in electrochemical capacitors
TL;DR: In this article, the authors show that poly-3-(4-fluorophenyl)-thiophene, in a solution of 1 mol dm−3 tetramethylammonium trifluoromethanesulfonate in acetonitrile, can be n-and p-doped reversibly and to high charge density.
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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.
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Conducting polymer gas sensors Part III: Results for four different polymers and five different vapours
P.N. Bartlett,Sim K. Ling-Chung +1 more
TL;DR: In this paper, the application of four different conducting polymers (polypyrrole, poly-N-methylpyrrone, polycarboxyindole and polyaniline) as sensors for organic vapours has been investigated.
Journal ArticleDOI
Conductive composites from polyvinyl alcohol and polypyrrole
S.E. Lindsey,G. B. Street +1 more
TL;DR: In this article, the electrochemical polymerization of pyrrole on a platinum electrode covered with a film of polyvinyl alcohol produces black, flexible films which are a composite of polypyrrole and polyvinly alcohol.