Polymeric sensing material-based selectivity-enhanced RF resonant cavity sensor for volatile organic compound (VOC) detection

2015 ◽  
Author(s):  
W.T. Chen ◽  
K.M.E. Stewart ◽  
R.R. Mansour ◽  
A. Penlidis
Keyword(s):  
Organic Compound ◽  
Volatile Organic Compound ◽  
Resonant Cavity ◽  
Sensing Material ◽  
Volatile Organic ◽  
Voc Detection

Fabricating a mechanochromic AIE luminogen into a wearable sensor for volatile organic compound (VOC) detection

2021 ◽  
Vol 192 ◽  
pp. 109393
Author(s):  
Jiangting Hu ◽  
Yang Liu ◽  
Xunxue Zhang ◽  
Hongliang Han ◽  
Zhongfeng Li ◽  
...  
Keyword(s):  
Organic Compound ◽  
Volatile Organic Compound ◽  
Wearable Sensor ◽  
Volatile Organic ◽  
Voc Detection

scholarly journals Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 633
Author(s):  
Muthaiah Shellaiah ◽  
Kien Wen Sun
Keyword(s):  
Organic Compound ◽  
Organic Compounds ◽  
Nanostructured Materials ◽  
Volatile Organic Compound ◽  
Cost Effective ◽  
Semiconducting Materials ◽  
Global Issue ◽  
Volatile Organic ◽  
Intensive Work ◽  
Voc Detection

Environmental pollution related to volatile organic compounds (VOCs) has become a global issue which attracts intensive work towards their controlling and monitoring. To this direction various regulations and research towards VOCs detection have been laid down and conducted by many countries. Distinct devices are proposed to monitor the VOCs pollution. Among them, chemiresistor devices comprised of inorganic-semiconducting materials with diverse nanostructures are most attractive because they are cost-effective and eco-friendly. These diverse nanostructured materials-based devices are usually made up of nanoparticles, nanowires/rods, nanocrystals, nanotubes, nanocages, nanocubes, nanocomposites, etc. They can be employed in monitoring the VOCs present in the reliable sources. This review outlines the device-based VOC detection using diverse semiconducting-nanostructured materials and covers more than 340 references that have been published since 2016.

scholarly journals Nickel-Oxide Based Thick-Film Gas Sensors for Volatile Organic Compound Detection

Chemosensors ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 247
Author(s):  
Sai Kiran Ayyala ◽  
James A. Covington
Keyword(s):  
Organic Compound ◽  
Nickel Oxide ◽  
Thick Film ◽  
Volatile Organic Compound ◽  
Sensing Material ◽  
Low Concentrations ◽  
Volatile Organic ◽  
Recovery Times ◽  
Response And Recovery ◽  
Voc Sensor

In this paper, we report on the development of a highly sensitive and humidity-tolerant metal-oxide-based volatile organic compound (VOC) sensor, capable of rapidly detecting low concentrations of VOCs. For this, we successfully fabricated two different thicknesses of nickel oxide (NiO) sensors using a spin-coating technique and tested them with seven different common VOCs at 40% r.h. The measured film thickness of the spin-coated NiO was ~5 μm (S-5) and ~10 μm (S-10). The fastest response and recovery times for all VOCs were less than 80 s and 120 s, respectively. The highest response (Rg/Ra = 1.5 for 5 ppm ethanol) was observed at 350 °C for both sensors. Sensors were also tested in two different humidity conditions (40% and 90% r.h.). The humidity did not significantly influence the observed sensitivity of the films. Furthermore, S-10 NiO showed only a 3% drift in the baseline resistance between the two humidity conditions, making our sensor humidity-tolerant compared to traditional n-type sensors. Thus, we propose thick-film NiO (10 μm) sensing material as an interesting alternative VOC sensor that is fast and humidity-tolerant.

Pilot plant plasma-catalytic system for the decomposition of a volatile organic compound

2016 ◽  
Vol 15 (3) ◽  
pp. 251-259
Author(s):  
Shreedhar Devkota ◽  
◽  
Jin Oh Jo ◽  
Dong Lyong Jang ◽  
Young Jin Hyun ◽  
...  
Keyword(s):  
Organic Compound ◽  
Catalytic System ◽  
Volatile Organic Compound ◽  
Pilot Plant ◽  
Volatile Organic
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