Room Temperature NO2 Gas Sensor Based on Functionalized Carbon Nanotubes /Nickel Oxide Nanoparticles

2020 ◽  
Vol 30 ◽  
pp. 1-7
Author(s):  
Sally K. Abbas ◽  
Asama N. Naje
Keyword(s):  
Carbon Nanotubes ◽  
Response Time ◽  
Nickel Oxide ◽  
Gas Sensor ◽  
High Sensitivity ◽  
Single Wall Carbon Nanotubes ◽  
Oxide Nanoparticles ◽  
Sensitive Material ◽  
Nickel Oxide Nanoparticles ◽  
Multi Wall Carbon Nanotubes

Functionalized-multi wall carbon nanotubes (F-MWCNTs) and functionalized-single wall carbon nanotubes (F-SWCNTs) were well enhanced using NiO Nanoparticles. The sensor device consisted of a film of sensitive material (F-MWCNTs/ Nickel oxide nanoparticles) and (F-SWCNTs/ Nickel oxide nanoparticles) deposited by drop casting on n-type porous silicon substrate. The two sensors perform high sensitivity to NO2 gas at particular temperatures. The analysis indicated that the (F-MWCNTs/NiONPs) have a better performance than (F-SWCNTs/NiONPs). The F-SWCNTs/NiONPs gas sensor shows high sensitivity (18.2 %) at RT with response time 16 sec, while F-MWCNTs/NiONPs gas sensor show better sensitivity (45 %) at RT with response time 26 sec. The device shows a very reproducible sensor performance, with high repeatability, complete recovery and adequate response. A demonstration of the improvement in sensing of NO2 gas using NiO-functionalized nanotubes is provided.

scholarly journals Enhancement of functionalized carbon nanotubes gas sensor by adding metal oxide nanoparticles

2020 ◽  
Vol 18 (47) ◽  
pp. 62-72
Author(s):  
Sally K. Abbas ◽  
Asama Natik Naje
Keyword(s):  
Carbon Nanotubes ◽  
Response Time ◽  
Gas Sensor ◽  
Metal Oxide Nanoparticles ◽  
High Sensitivity ◽  
Complete Recovery ◽  
Single Wall Carbon Nanotubes ◽  
Sensitive Material ◽  
Multi Wall Carbon Nanotubes ◽  
Sensor Performance

Functionalized-multi wall carbon nanotubes (F-MWCNTs) and functionalized-single wall carbon nanotubes (F-SWCNTs) were well enhanced using CoO Nanoparticles. The sensor device consisted of a film of sensitive material (F-MWCNTs/CoONPs) and (F-SWCNTs/CoO NPs) deposited by drop- casting on an n-type porous silicon substrate. The two sensors perform high sensitivity to NO2 gas at room temperatures. The analysis indicated that the (F-MWCNTs/CoONPs) have a better performance than (F-SWCNTs/CoONPs). The F-SWCNTs/CoONPs gas sensor shows high sensitivity (19.1 %) at RT with response time 17 sec, while F-MWCNTs/CoONPs gas sensor show better sensitivity (39 %) at RT with response time 13 sec. The device shows a very reproducible sensor performance, with high repeatability, complete recovery, and adequate response. A demonstration of the improvement in sensing of NO2 gas using CoO-functionalized nanotubes is provided.

Size Controlled Nickel Oxide Nanoparticles on Carbon Nanotubes for Supercapacitor Electrode

2008 ◽  
Vol 8 (10) ◽  
pp. 5427-5432 ◽  
Author(s):  
Sang Hoon Nam ◽  
Youn-Su Kim ◽  
Hee-Sang Shim ◽  
Sung Mook Choi ◽  
Hae Jin Kim ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Nickel Oxide ◽  
Oxide Nanoparticles ◽  
Supercapacitor Electrode ◽  
Nickel Oxide Nanoparticles ◽  
Size Controlled

scholarly journals Laser-induced nanostructuration of vertically aligned carbon nanotubes coated with nickel oxide nanoparticles

2016 ◽  
Vol 52 (7) ◽  
pp. 4002-4015 ◽  
Author(s):  
Angel Pérez del Pino ◽  
Eniko Gyorgy ◽  
Shahzad Hussain ◽  
Jose Luis Andújar ◽  
Esther Pascual ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Nickel Oxide ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles ◽  
Vertically Aligned Carbon Nanotubes ◽  
Aligned Carbon Nanotubes ◽  
Vertically Aligned
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