Polypyrrole materials for detection and discrimination of volatile organic compounds

Hamilton, Sean M.; Hepher, M.J.; Sommerville, James

doi:10.1016/j.snb.2004.11.001

Cited by 68 publications

(36 citation statements)

References 16 publications

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“…The interaction of volatile components, gases, and liquids with conductive polymer films have shown to produce changes in color, mass, work function or electrical conductivity of the polymer, analyzable by photoluminescence, photocurrent, surface acoustic wave, quartz microbalance, conductometric, voltammetric or potentiometric measurements [5 -11]. Past research work has focused on using conducting polymer, polypyrrole in particular, thin film based conductometric sensors for detection of volatile organic components (VOC), where it was shown that the polypyrrole thin film sensors were sensitive with good response to VOC showing larger responses to polar than nonpolar compounds [12].…”

Section: Introductionmentioning

confidence: 99%

Single Polypyrrole Nanowire Ammonia Gas Sensor

et al. 2007

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We report the synthesis, electrical characterization and ammonia gas sensing with single nanowire of conducting polypyrrole. Three hundred nanometer in diameter and 50 to 60 mm long polypyrrole nanowires were synthesized by chemical polymerization inside SiO 2 coated alumina membranes. Temperature dependent electrical resistance studies established that the chemically synthesized nanowires were more ordered compared to electrochemically synthesized nanowires. We further demonstrated that gas sensors based on single polypyrrole nanowire exhibited good sensitivity towards ammonia, and provided a reliable detection at concentration as low as approximately 40 ppm.

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Section: Introductionmentioning

confidence: 99%

Single Polypyrrole Nanowire Ammonia Gas Sensor

et al. 2007

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“…209 It is worth noting that a large number of prepared PPy composite fibres have been employed for sensor applications. 18,132,210 An overview of the studies performed on composite PPy fibres is given in Table 5. 153,214,215 In recent time, limited cases described preparation of composite PEDOT:PSS fibres through wet spinning method.…”

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confidence: 99%

Developments in conducting polymer fibres: from established spinning methods toward advanced applications

2016

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Conducting polymers have received increasing attention in both fundamental research and various fields of application in recent decades, ranging in use from biomaterials to renewable energy storage devices. Processing of conducting polymers into fibrillar structures through spinning has provided some unique capabilities to their final applications. Compared with non fibrillar forms, conducting polymer fibres are expected to display improved properties arising mainly from their low dimensions, well-oriented polymer chains, light weight and large surface area to volume ratio. Spinning methods have been employed effectively to produce technological conducting fibres from nanoscale to hundreds of micrometre sizes with controlled properties. This review considers the history, categories, the latest research and development, pristine and composite conducting polymer fibres and current/future applications of them while focus on spinning methods related to conducting polymer fibres. Inherently conducting polymers have received increasing attention in both fundamental research and various fields of application in recent decades, ranging in use from biomaterials to renewable energy storage devices. Processing of conducting polymers into fibrillar structures through spinning has provided some unique capabilities to their final applications. Compared with non fibrillar forms, conducting polymer fibres are expected to display improved properties arising mainly from their low dimensions, well-oriented polymer chains, light weight and large surface area to volume ratio. Spinning methods have been employed effectively to produce technological conducting fibres from nanoscale to hundreds of micrometre sizes with controlled properties. This review considers the history, categories, the latest research and development, pristine and composite conducting polymer fibres and current/future of applications of them while focus on spinning methods related to conducting polymer fibres. Disciplines Engineering | Physical Sciences and Mathematics

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“…This strategy, which is inspired from the concept of the electronic nose, is a very promising one and has led to sensitive and reproducible responses to various VOCs. The same concept was used by Hamilton et al [30] who used a seven sensors array forming an electronic nose. The seven sensors were coated by polypyrrole films containing various counter-anions (containing perchlorate, hexafluorophosphate, and sulfonate anions) at different concentrations.…”

Section: Gas Sensors Based On Electrodeposited Polymer Filmsmentioning

confidence: 99%

“…The main drawback of gas sensors based on electrodeposited polymers is their lack of selectivity. One solution to partially solve this problem is the use of arrays containing many different polymers as sensing materials as shown by Barisci et al [29] and Hamilton et al [30]. From our point of view, such devices are the only ones in the future that can lead to selective gas sensing.…”

Section: Gas Sensors Based On Electrodeposited Polymer Filmsmentioning

confidence: 99%

Gas Sensors Based on Electrodeposited Polymers

Lakard

Carquigny

Segut

et al. 2015

Metals

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Electrochemically deposited polymers, also called "synthetic metals", have emerged as potential candidates for chemical sensing due to their interesting and tunable chemical, electrical, and structural properties. In particular, most of these polymers (including polypyrrole, polyaniline, polythiophene) and their derivatives can be used as the sensitive layer of conductimetric gas sensors because of their conducting properties. An important advantage of polymer-based gas sensors is their efficiency at room temperature. This characteristic is interesting since most of the commercially-available sensors, usually based on metal oxides, work at high temperatures (300-400 °C). Consequently, polymer-based gas sensors are playing a growing role in the improvement of public health and environment control because they can lead to gas sensors operating with rapid detection, high sensitivity, small size, and specificity in atmospheric conditions. In this review, the recent advances in electrodeposited polymer-based gas sensors are summarized and discussed. It is shown that the sensing characteristics of electrodeposited polymers can be improved by chemical functionalization, nanostructuration, or mixing with other functional materials to form composites or hybrid materials. OPEN ACCESSMetals 2015, 5 1372

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Polypyrrole materials for detection and discrimination of volatile organic compounds

Cited by 68 publications

References 16 publications

Single Polypyrrole Nanowire Ammonia Gas Sensor

Single Polypyrrole Nanowire Ammonia Gas Sensor

Developments in conducting polymer fibres: from established spinning methods toward advanced applications

Gas Sensors Based on Electrodeposited Polymers

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