A polymer-Metglas sensor used to detect volatile organic compounds

Baimpos, Theodoros; Boutikos, Panagiotis; Nikolakis, Vladimiros; Kouzoudis, Dimitris

doi:10.1016/j.sna.2010.01.020

Cited by 40 publications

(17 citation statements)

References 37 publications

(46 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the detection and measurement of xylene are of great significance. Hitherto, various techniques and methods such as gas chromatography technique, optical waveguide technique, optical planar Bragg grating sensors, chemical sensors, biosensors, and magnetoelastic sensors have been employed to detect xylene, among which chemical sensors based on metal oxide semiconductor receive great attention due to their good performance, low cost, portability, convenient fabrication, and operating process, etc …”

Section: Introductionmentioning

confidence: 99%

Preparation and Xylene‐Sensing Properties of Co₃O₄ Nanofibers

Feng

et al. 2013

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Co 3 O 4 nanofibers were prepared by an electrospinning method and characterized by differential thermal and thermal gravimetric analyzer (DTA-TGA), X-ray diffraction (XRD), Fourier Transform Infrared Spectrometer (FT-IR), and scanning electron microscopy (SEM). Xylene-sensing properties of the as-prepared nanofibers were also investigated in detail. The results showed that the morphology of the as-prepared fibers was largely influenced by the calcination temperature. The Co 3 O 4 nanofibers calcined at 500°C exhibited the highest response to xylene in a wide concentration range. Moreover, Co 3 O 4 nanofibers calcined at 500°C also exhibited good selectivity, fast response (15 s) and recovery (22 s) rate at a low operating temperatures of 255°C. These properties make the fabricated nanofibers good candidates for xylene detection.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation and Xylene‐Sensing Properties of Co₃O₄ Nanofibers

Feng

et al. 2013

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…Electroactive polymers with a large carrier delocalization-such as polypyrroles, polyaniline, polyacetylene and polythiophenes-assume outstanding significance due to their idiosyncratic electronic properties [6,7]. Among these, regioregular polythiophenes possess air-stable conducting features, particularly appropriate for VOCs sensing [8].…”

Section: Introductionmentioning

confidence: 99%

Volatile organic compounds detection by electrical sensors using polyalkylthiophene-based Langmuir–Blodgett films

et al. 2019

View full text Add to dashboard Cite

Despite their environmental and health hazards, volatile organic compounds (VOCs) are present in our everyday life (e.g., fuels and solvents). Their detection is of paramount importance for environmental and occupational hazards monitoring. Among other technologies, semiconducting polymers show good capabilities in VOCs detection and identification, thanks to the variation of their electronic properties upon VOC exposure. We fabricated and characterized VOCs sensors depositing thin films of regioregular poly(3-alkylthiophene) derivatives (rr-P3ATs) and stearic acid (SA) onto gold interdigitated electrodes by Langmuir-Blodgett technique. Poly(3-butylthiophene) and poly(3-hexylthiophene) (P3HT) were mixed with SA at different ratios, and their electrical conductivity was used to optimize the film composition. We characterized the optoelectronic and morphological properties of these films, as well as their electrical response to dichloromethane (DCM), tetrahydrofuran and toluene VOC exposure. Both P3AT sensors showed distinct and characteristic responses, highlighting their ability to recognize different VOCs. Moreover, we investigated the sensors saturation and sensitivity to different VOCs. The sensors were still able to detect the VOCs after six cycles, with P3HT remarkably showing no saturation at all for DCM, and the characteristic single VOC response for subsequent exposure to the different VOCs.

show abstract

“…Volatile organic compounds (VOC) are well recognized as hazardous agents, which can cause serious problems both to environment and to the health of human beings organic compounds (VOC) are well recognized as hazardous agents, which can cause serious problems both to environment and to the health of human beings [1,2]. Therefore, there are considerable demands in developing a small size, low-power consumption, easy integration vapor sensor for environmental monitoring.…”

Section: ：：：：Introductionmentioning

confidence: 99%