Al-doped GeS nanosheet as a promising sensing material for O-contained volatile organic compounds detection

2020 ◽  
Vol 527 ◽  
pp. 146797 ◽  
Author(s):  
Kaiwen Pu ◽  
Xianying Dai ◽  
Yuyu Bu ◽  
Runqiu Guo ◽  
Wenluo Tao ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Sensing Material ◽  
Volatile Organic

scholarly journals Selectivity of Tungsten Oxide Synthesized by Sol-Gel Method Towards Some Volatile Organic Compounds and Gaseous Materials in a Broad Range of Temperatures

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 523 ◽  
Author(s):  
Simonas Ramanavičius ◽  
Milda Petrulevičienė ◽  
Jurga Juodkazytė ◽  
Asta Grigucevičienė ◽  
Arūnas Ramanavičius
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Sol Gel ◽  
Temperature Dependent ◽  
Sensing Systems ◽  
Sensing Material ◽  
Operational Temperature ◽  
Volatile Organic ◽  
Different Gases

In this research, the investigation of sensing properties of non-stoichiometric WO3 (WO3−x) film towards some volatile organic compounds (VOC) (namely: Methanol, ethanol, isopropanol, acetone) and ammonia gas are reported. Sensors were tested at several temperatures within the interval ranging from a relatively low temperature of 60 up to 270 °C. Significant variation of selectivity, which depended on the operational temperature of sensor, was observed. Here, the reported WO3/WO3–x-based sensing material opens an avenue for the design of sensors with temperature-dependent sensitivity, which can be applied in the design of new gas- and/or VOC-sensing systems that are dedicated for the determination of particular gas- and/or VOC-based analyte concentration in the mixture of different gases and/or VOCs, using multivariate analysis of variance (MANOVA).

A Highly Efficient Volatile Organic Compounds Gas Sensor Based on Molybdenum Oxide Applied in Air Detection Inside Vehicles

2021 ◽  
Vol 16 (6) ◽  
pp. 993-997
Author(s):  
Jinying Zhou ◽  
Yan Liu ◽  
Lei Xu ◽  
Jun Long
Keyword(s):  
Volatile Organic Compounds ◽  
Gas Sensor ◽  
Organic Compounds ◽  
Gas Sensing ◽  
Structural Features ◽  
X Ray Diffraction ◽  
Sensing Material ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Promising Application

Volatile organic compounds (VOCs) are the major air pollutants inside vehicles. In this research, a highly sensitive gas sensor was developed based on an excellent sensing material and explored for VOCs sensing application. The X-ray diffraction and scanning electron microscopy were performed to evaluate the detailed structural features of sensing material. From the gas-sensing property tests to the three representative VOCs vapors, containing xylene, toluene and formaldehyde, the gas sensor fabricated from the exceptional sensing material significantly responses to the three VOCs vapors. In particular, the xylene response of the sensor is slightly larger than the other two gas response. Thus, the fabricated sensor could be a promising application for VOCs detection inside vehicles.

Hierarchical nanostructured WO3–SnO2 for selective sensing of volatile organic compounds

Nanoscale ◽  
2015 ◽  
Vol 7 (29) ◽  
pp. 12460-12473 ◽  
Author(s):  
Arpan Kumar Nayak ◽  
Ruma Ghosh ◽  
Sumita Santra ◽  
Prasanta Kumar Guha ◽  
Debabrata Pradhan
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Mixed Oxide ◽  
Sensing Material ◽  
Volatile Organic ◽  
Sensitivity And Selectivity

WO3–SnO2 mixed oxide is demonstrated to be a suitable sensing material for volatile organic compounds, with much improved sensitivity and selectivity.

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