Attached two folded graphene nanoribbons as sensitive gas sensor

Kheirabadi, Sharieh Jamalzadeh; Ghayour, Rahim; Sanaee, Maryam

doi:10.1016/j.physb.2021.413630

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Implementing MOFs leads to better sensing activity and higher gas molecules adsorption because of their large active surface area. Kheirabadi et al, 35 joined two similar Folded Armchair Graphene Nano ribbons (FAGNRs from their open sides, and constructed a new structure called Attached FAGNR tube (AFAGNT). The authors tested the gas sensing performances of CNT and AFAGNT in presence of CO, O 2 and CO 2 gases molecules, which resulted in significant sensitivities to CO gas molecule at various bias voltages, especially at 0.8V.…”

Section: Carbon-based Nano Sensorsmentioning

confidence: 99%

Recent advancements in nano sensors for air and water pollution control

Grozdanov,

Dimitrievska,

Paunovic

2023

MSEIJ

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Increased environmental pollution is becoming one of the greatest problem the world is facing nowadays causing irreparable damage to the earth. Because of their novel and tunable physicochemical properties, nano materials have attracted great attention among researchers as promising materials to combat environmental challenges. Developing nanotechnology have triggered a great deal of interest in these structures for pollution monitoring and treatment, enabling new technologies for identifying and addressing environmental problems. Even though achieving environmental pollution control is a challenging task using conventional materials, revolutionary progress has been observed with the advancements in nanotechnology, showing that precisely modified nano materials can be used for purposes such as treatment of polluted atmosphere, industrial and domestic wastewater, natural water, and soil. In this paper we review and discuss the environmental applications of nano materials as nano sensors employed for combating atmospheric and aquatic pollution. Keywords: enviro

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Section: Carbon-based Nano Sensorsmentioning

confidence: 99%

Recent advancements in nano sensors for air and water pollution control

Grozdanov,

Dimitrievska,

Paunovic

2023

MSEIJ

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“…However, they are usually operated at high temperatures between 100 • C and 550 • C, which requires high power consumption [10][11][12][13][14][15][16]. To fabricate low-temperature chemiresistive-type gas sensors, graphene with a two-dimensional (2D) network of carbon has become a promising candidate material due to its advantages of high specific surface area and excellent electrical conductivity [17]. However, its application is limited by the zero band gap feature, and graphene is not very responsive to ammonia at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Indium Oxide Decorated WS2 Microflakes for Selective Ammonia Sensors at Room Temperature

Guang

Huang

et al. 2022

Chemosensors

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Tungsten sulfide decorated with indium oxide nanoparticles (In2O3/WS2) was studied for a chemiresistive-type NH3 sensor at room temperature. It was found that the responses of the developed In2O3/WS2 heterostructure nanocomposite-based sensors are significantly improved to 3.81 from 1.45 for WS2. The response and recovery time of the heterostructure-based sensor was found to significantly decrease to 88 s/116 s (10 ppm) from 112 s/192 s for the WS2-based one. The sensor also exhibits excellent selectivity and signal reproducibility. In comparison to WS2 decorated with both ZnO and SnO2 in similar ways, the In2O3-decorated WS2 has overall better sensing performance in terms of sensitivity, selectivity and response/recovery speeds for NH3 from 1 ppm to 10 ppm at room temperature. The improved sensing properties of WS2 incorporating In2O3 could be attributed to the joint enhancement mechanisms of the “electronic and catalytic” sensitizations.

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Attached two folded graphene nanoribbons as sensitive gas sensor

Cited by 2 publications

References 18 publications

Recent advancements in nano sensors for air and water pollution control

Recent advancements in nano sensors for air and water pollution control

Indium Oxide Decorated WS2 Microflakes for Selective Ammonia Sensors at Room Temperature

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