Hybrid gas sensor based on platinum nanoparticles/poly(methyl methacrylate)-coated single-walled carbon nanotubes for dichloromethane detection with a high response magnitude

Muangrat, Worawut; Yordsri, Visittapong; Maolanon, Rungroj; Pratontep, Sirapat; Porntheeraphat, Supanit; Wongwiriyapan, Winadda

doi:10.1016/j.diamond.2016.03.016

Cited by 12 publications

(4 citation statements)

References 38 publications

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“…31,32) For the GR=PMMA sensor, the main sensing mechanism can be described in terms of polymer swelling due to VOC adsorption and the Hansen solubility parameter (HSP) similarly to polymer-coated carbon nanotubes. 33,34) A hypothesis based on polymer swelling can be described as follows. After VOC adsorption, PMMA on graphene layer becomes swollen, resulting in an increase in electrical resistance due to the increase in polymer volume and graphene sheet bending.…”

Section: Sensing Mechanism Of Graphene and Gr/pmma Sensormentioning

confidence: 99%

Graphene and poly(methyl methacrylate) composite laminates on flexible substrates for volatile organic compound detection

Rattanabut

Wongwiriyapan

Muangrat

et al. 2018

Jpn. J. Appl. Phys.

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In this paper, we present a gas sensor for volatile organic compound (VOC) detection based on graphene and poly(methyl methacrylate) (GR/PMMA) composite laminates fabricated using CVD-grown graphene. Graphene was transferred to a poly(ethylene terephthalate) (PET) substrate by PMMA-supported wet transfer process without PMMA removal in order to achieve the deposition of GR/PMMA composite laminates on PET. The GR/PMMA and graphene sensors show completely different sensitivities to VOC vapors. The GR/PMMA and graphene sensors showed the highest sensitivities to dichloromethane (DCM). The response of the GR/PMMA sensor to DCM was 3 times higher than that of the graphene sensor but the GR/PMMA sensor hardly responded to acetone, chloroform, or benzene. The sensing mechanism of the graphene sensor can be based on the dielectric constant of VOCs, the size of VOC molecule, and electron hopping effects on defect graphene, while that of the GR/PMMA sensor can be explained in terms of the polymer swelling owing to the Hansen solubility parameter.

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Section: Sensing Mechanism Of Graphene and Gr/pmma Sensormentioning

confidence: 99%

Graphene and poly(methyl methacrylate) composite laminates on flexible substrates for volatile organic compound detection

Rattanabut

Wongwiriyapan

Muangrat

et al. 2018

Jpn. J. Appl. Phys.

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“…Due to its high volatility, the inhalation reference exposure level is limited to 100 ppb or 400 μ g/m3 to prevent human workers from experiencing the key effects of carboxyhemoglobin (COHb) formation. In industry, [6][7]dcm is widely used as paint and varnish remover, aerosol as cosolvent or vapor pressure inhibitor, solvent degreasing and metal cleaning applications, plastic processing and extraction of fat and oil from food. Interestingly, it is also used to decaffeinate coffee and tea.…”

Section: Introductionmentioning

confidence: 99%

Dichloromethane detection based on near-infrared absorptive sensing

Yang,

Pang,

Wang

et al. 2024

Advanced Fiber Laser Conference (AFL2023)

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High-risk liquid chemicals inadvertently enter the surrounding environment during production, storage, transportation, and use, posing a serious threat to ecosystems and human health. How to quickly detect chemical contaminants has become an urgent problem to be solved. In this paper, a new method of short-wave infrared 0. 9-1. 7 μm hyperspectral imaging telemetry based on liquid crystal tunable filter (LCTF) is proposed to replace the traditional contact nonimaging sampling analysis method. The dichloromethane liquid is characterized and combined with the envelope method and correlation coefficient algorithm for identification imaging. It can achieve remote sensing identification and distribution of four toxic liquids within a short distance of 0. 5-1. 5 meters, with a spectral resolution of up to 30 nm and a recognition accuracy of 99 %. It is a fast and accurate method for detecting surface chemical agents and toxic and hazardous substances on contaminated surfaces. Shorten the time of chemical reconnaissance and improve the efficiency of environmental perception.

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“… 22,23 Winadda et al proposed a DCM sensor based on carbon nanotubes that can be easily operated at room temperature but has a high detection limit. 28 In recent years, considerable advances have been achieved in optical or photoelectric DCM sensors due to the superiority of optical signals in fast response, low loss, and flexible optical spectra modulation. Han et al have introduced a DCM detector based on near-infrared absorptive sensing and obtained high resolution, 29 while the optical sensor based on fluorescence quenching behavior in Cd metal–organic framework is found to be highly efficient.…”

Section: Introductionmentioning

confidence: 99%

Nanoporous fluorescent sensor based on upconversion nanoparticles for the detection of dichloromethane with high sensitivity

Wang

Zhan

et al. 2021

RSC Adv.

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Hybrid gas sensor based on platinum nanoparticles/poly(methyl methacrylate)-coated single-walled carbon nanotubes for dichloromethane detection with a high response magnitude

Cited by 12 publications

References 38 publications

Graphene and poly(methyl methacrylate) composite laminates on flexible substrates for volatile organic compound detection

Graphene and poly(methyl methacrylate) composite laminates on flexible substrates for volatile organic compound detection

Dichloromethane detection based on near-infrared absorptive sensing

Nanoporous fluorescent sensor based on upconversion nanoparticles for the detection of dichloromethane with high sensitivity

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