Single-Walled Carbon Nanotube-Based Chemi-Capacitive Sensor for Hexane and Ammonia

Kim, Seil; Lee, Kyu-Hwan; Lee, Ju-Yul; Kim, Kyoung-Kook; Choa, Yong‐Ho; Lim, Jae‐Hong

doi:10.1007/s13391-019-00177-0

Cited by 18 publications

(8 citation statements)

References 29 publications

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“…Purposely, the chemically stable naphthalenebased RE-fcu-MOF (NDC-Y-fcu-MOF) was elected and the fabricated MOF-based sensor showed a notable detection sensitivity for NH 3 at a 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 CO 2 . Performances of chemi-capacitance NH 3 sensors, exploiting functionalized SWNT arrays in two different configurations are investigated in [30]. The addressed operating range is up to 100 ppm, with a limit of detection lower than 0.5 ppm.…”

Section: B Related Work On Nh 3 Sensing Methodologiesmentioning

confidence: 99%

A Capacitive Sensor, Exploiting a YSZ Functional Layer, for Ammonia Detection

Andò

Baglio

Castorina

et al. 2022

IEEE Trans. Instrum. Meas.

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In different fields, the need for low-cost sensors allowing an early detection of (bio)quantities is emerging. This article deals with the design, realization, and characterization of a low-cost sensor for ammonia detection realized by fast prototyping techniques. The sensor is part of a more complex system aimed to assess the level of phenylalanine levels in biological fluids (blood, saliva, or urine), which would allow the development of a new approach for the self-monitoring of patients with the phenylketonuria (PKU) metabolic disorder. The obtained experimental results encourage the further development of the proposed approach. In particular, the sensor behavior has been investigated for an ammonia concentration in the range [0-2000] µM. The developed sensor prototype shows a responsivity of 3.53 × 10 −14 F/µM, a resolution of 0.15 µM, and a span-to-resolution of 1.3 × 10 4 .

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Section: B Related Work On Nh 3 Sensing Methodologiesmentioning

confidence: 99%

A Capacitive Sensor, Exploiting a YSZ Functional Layer, for Ammonia Detection

Andò

Baglio

Castorina

et al. 2022

IEEE Trans. Instrum. Meas.

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“…The majority of publications on carbon nanomaterials are devoted to chemiresistive [ 73 , 74 , 75 ] gas sensors, although there are also chemicapacitive [ 76 ], surface acoustic wave [ 77 ], electrochemical [ 78 ], optic fiber [ 79 ], and quartz crystal microbalance [ 80 ] ammonia gas sensors ( Figure 1 ). Each sensor based on carbon nanomaterials has its own mechanism of NH 3 detection.…”

Section: Ammonia Gas Sensors and Gas Sensing Mechanismmentioning

confidence: 99%

“…This interaction causes perturbations on the boundary conditions of the propagating surface acoustic wave, manifesting as a change of velocity and attenuation of the propagating wave [ 81 ]. Kim et al [ 76 ] reported that the strong electric field applied between a silicon substrate and single-walled carbon nanotubes (SWCNTs) was generated outside of the array of carbon nanotubes, causing the polarization of absorbed molecules of ammonia that induces the change of capacitance.…”

Section: Ammonia Gas Sensors and Gas Sensing Mechanismmentioning

confidence: 99%

Recent Advances in Ammonia Gas Sensors Based on Carbon Nanomaterials

et al. 2021

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This review paper is devoted to an extended analysis of ammonia gas sensors based on carbon nanomaterials. It provides a detailed comparison of various types of active materials used for the detection of ammonia, e.g., carbon nanotubes, carbon nanofibers, graphene, graphene oxide, and related materials. Different parameters that can affect the performance of chemiresistive gas sensors are discussed. The paper also gives a comparison of the sensing characteristics (response, response time, recovery time, operating temperature) of gas sensors based on carbon nanomaterials. The results of our tests on ammonia gas sensors using various techniques are analyzed. The problems related to the recovery of sensors using various approaches are also considered. Finally, the impact of relative humidity on the sensing behavior of carbon nanomaterials of various different natures was estimated.

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“…Nanocarbon materials, which are semiconductors with band gaps of 0 eV, possess excellent properties, including high electron transfer rates, superior thermal conductivities [7], low costs [8], flexibility, and high surface ratio area [9,10]. Nanocarbon materials have received considerable attention for various applications, such as flexible electronic devices [11], graphene-based sensors [12], Li-ion batteries [13], and supercapacitors [14][15][16][17][18][19]. Nanocarbon semiconductors in terms of vertical carbon nanotube (CNT) interconnection and horizontal graphene lines have received increased attention to solve this disadvantage [20].…”

Section: Introductionmentioning

confidence: 99%

Effect of Pulsed Light Irradiation on Patterning of Reduction Graphene Oxide-Graphene Oxide Interconnects for Power Devices

Choi

Pyo

2021

Coatings

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Reduction graphene oxide (r-GO) lines on graphene oxide (GO) films can be prepared by a photocatalytic reduction and photothermal reduction method. A mechanism of partial GO reduction by pulsed photon energy is identified for preparing patterned rGO-GO films. The photocatalytic reduction method efficiently reduces GO at low photon energies. The successful production of a patterned rGO-GO film without damage by the photo thermal reduction method is possible when an energy density of 6.0 or 6.5 J/m2 per pulse is applied to a thin GO film (thickness: 0.45 μm). The lowest resistance obtained for a photo-reduced rGO line is 0.9 kΩ sq−1. The GO-TiO2 pattern fabricated on the 0.23 μm GO-TiO2 composite sheet through the energy density of each pulse is 5.5 J/m2 for three pulses.

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Single-Walled Carbon Nanotube-Based Chemi-Capacitive Sensor for Hexane and Ammonia

Cited by 18 publications

References 29 publications

A Capacitive Sensor, Exploiting a YSZ Functional Layer, for Ammonia Detection

A Capacitive Sensor, Exploiting a YSZ Functional Layer, for Ammonia Detection

Recent Advances in Ammonia Gas Sensors Based on Carbon Nanomaterials

Effect of Pulsed Light Irradiation on Patterning of Reduction Graphene Oxide-Graphene Oxide Interconnects for Power Devices

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