Carbon nanotubes and its gas-sensing applications: A review

Han, Tao; Nag, Anindya; Mukhopadhyay, Subhas Chandra; Xu, Yongzhao

doi:10.1016/j.sna.2019.03.053

Cited by 226 publications

(108 citation statements)

References 237 publications

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“…In the particular case of gas sensing, carbon materials can compete with more well-established inorganic materials. For example, Kim and Lee (2016) [ 35 ] and Han et al published two reviews on the enhancement of gas sensors performances using carbon nanomaterials [ 36 ]. It appears that such supporting materials are effective due to their high surface-to-volume ratio.…”

Section: Discussionmentioning

confidence: 99%

Sensors Made of Natural Renewable Materials: Efficiency, Recyclability or Biodegradability—The Green Electronics

Piro

Tran

Thu

2020

Sensors

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Nowadays, sensor devices are developing fast. It is therefore critical, at a time when the availability and recyclability of materials are, along with acceptability from the consumers, among the most important criteria used by industrials before pushing a device to market, to review the most recent advances related to functional electronic materials, substrates or packaging materials with natural origins and/or presenting good recyclability. This review proposes, in the first section, passive materials used as substrates, supporting matrixes or packaging, whether organic or inorganic, then active materials such as conductors or semiconductors. The last section is dedicated to the review of pertinent sensors and devices integrated in sensors, along with their fabrication methods.

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Section: Discussionmentioning

confidence: 99%

Sensors Made of Natural Renewable Materials: Efficiency, Recyclability or Biodegradability—The Green Electronics

Piro

Tran

Thu

2020

Sensors

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“…The microstructure of SWCNTs and MWCNTs are somehow the same, that is, they consist of a rolled-up single sheet of a layer of graphene. However, MWCNTs are composed of concentric tubes of graphene fitted inside each other (Pitroda et al, 2016;Beitollahi et al, 2018;Han et al, 2019). It is confirmed that adsorption of electron withdrawing (e.g., NO 2 , O 2 ) or donating (like NH 3 ) molecules on SWCNTs will cause the charge transfer between the nanotubes and molecules (Kong et al, 2001).…”

Section: Introductionmentioning

confidence: 89%

The Functionalized Single-Walled Carbon Nanotubes Gas Sensor With Pd Nanoparticles for Hydrogen Detection in the High-Voltage Transformers

et al. 2020

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Single-walled carbon nanotubes (SWCNTs) have been widely discussed and applied as novel gas sensing nanomaterials. Hydrogen is one of the remarkable fault characteristic gases in high-voltage oil-paper insulated transformers. In this paper, 3.07 wt% Pd nanoparticles (NPs) were used to decorate SWCNTs. The unloaded, the carboxylated, and the Pd-doped SWCNTs were fabricated into three planar gas sensors, and their gas sensing properties to hydrogen were studied. Gas sensing mechanism was analyzed. Results show that the optimal operating temperature of a Pd-doped SWCNTs-based gas sensor is 125 • C lower than that of the unloaded SWCNTs-based gas sensor, and it shows the highest gas sensing response value. This is attributed to the decreasing work function of Pd, which reduces the hole carries in the nanotubes.

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“…According to Treacy et al [12], Walters et al [13] and Yu et al [14], the tensile strength and elastic strain of CNTs were 100 times and 60 times higher than those of steel, respectively. Due to these characteristics, CNTs became a promising reinforcing agent not only for cement-based material but also for other materials or nanofibers [15][16][17]. However, the problem when incorporating CNTs in cementitious materials was the poor dispersion of CNTs in the aqueous solution due to the strong Van der Waals binding associated with the CNT aggregates.…”

Section: Introductionmentioning

confidence: 99%

Reinforcing cementitious material using single-walled carbon nanotube - nylon 66 nanofibers

Jung

Tri

Tung

et al. 2020

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Based on the increase in tensile strength and toughness (43% and 30%, respectively), the feasibility of the hybrid nanofibers containing Single-walled carbon nanotubes and Nylon 66 on reinforcing cementitious materials has been clarified. The well-linking effect of nanofibers in the microstructure of hardened cement pastes has been found by scanning electron microscope (SEM) analysis and well-explained for the increase in mechanical strengths. Besides, field emission transmission electron microscope (FE-TEM) analysis has also been conducted to analyze the properties of the hybrid nanofibers.

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Carbon nanotubes and its gas-sensing applications: A review

Cited by 226 publications

References 237 publications

Sensors Made of Natural Renewable Materials: Efficiency, Recyclability or Biodegradability—The Green Electronics

Sensors Made of Natural Renewable Materials: Efficiency, Recyclability or Biodegradability—The Green Electronics

The Functionalized Single-Walled Carbon Nanotubes Gas Sensor With Pd Nanoparticles for Hydrogen Detection in the High-Voltage Transformers

Reinforcing cementitious material using single-walled carbon nanotube - nylon 66 nanofibers

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