Chemiresistive gas sensors based on vanadium pentoxide reinforced polyvinyl alcohol/polypyrrole blend nanocomposites for room temperature LPG sensing

2021 ◽  
Vol 273 ◽  
pp. 116687 ◽  
Author(s):  
G.J. Thangamani ◽  
Kalim Deshmukh ◽  
N.A. Nambiraj ◽  
S.K. Khadheer Pasha
Small ◽  
2019 ◽  
Vol 15 (40) ◽  
pp. 1902065 ◽  
Author(s):  
Young Geun Song ◽  
Young‐Seok Shim ◽  
Jun Min Suh ◽  
Myoung‐Sub Noh ◽  
Gwang Su Kim ◽  
...  

Small ◽  
2019 ◽  
Vol 15 (40) ◽  
pp. 1970214
Author(s):  
Young Geun Song ◽  
Young-Seok Shim ◽  
Jun Min Suh ◽  
Myoung-Sub Noh ◽  
Gwang Su Kim ◽  
...  

2020 ◽  
Vol 2 (1) ◽  
pp. 66
Author(s):  
Sergio Masa ◽  
María José Mena ◽  
Esther Hontañón ◽  
Jesús Lozano ◽  
Siamak Eqtesadi ◽  
...  

In this work, we investigate the electrospray technique for the preparation of graphene layers for use in chemiresistive gas sensors. A dispersion of reduced graphene oxide (rGO) in isopropyl alcohol (0.1 mg/mL) is electrosprayed and the rGO flakes are deposited onto a polymeric substrate with printed interdigitated electrodes. The surface area of the substrate covered with rGO is mainly determined by the distance between the needle and the substrate, while the rGO deposition pattern strongly depends on the flowrate and the applied voltage. Homogeneous layers of rGO are obtained in a stable cone-jet regime, and the room temperature detection behavior of the sensors towards NO2, O3 and CO is assessed. The sensors were not capable of detecting CO (up to 5 ppm), but they detected 0.2 ppm NO2 and 0.05 ppm O3. The results are encouraging regarding the use of electrospray for the production of low-cost and low-power gas sensors based on graphene for air quality applications.


2019 ◽  
Vol 30 (17) ◽  
pp. 15825-15847 ◽  
Author(s):  
Parthasarathy Srinivasan ◽  
Madeshwari Ezhilan ◽  
Arockia Jayalatha Kulandaisamy ◽  
K. Jayanth Babu ◽  
John Bosco Balaguru Rayappan

2021 ◽  
pp. 1-1
Author(s):  
Guanlin Tang ◽  
Sachin Navale ◽  
Pianpian Yang ◽  
Vikas Patil ◽  
Florian Stadler

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