Preparation of Ethanol-Sensing Gas Sensor Based on PECH/Multi-Wall Carbon Nanotubes Sensitive Films

2014 ◽  
Vol 936 ◽  
pp. 419-423
Author(s):  
Wei Yao ◽  
Guang Zhong Xie ◽  
Hui Ling Tai ◽  
Ya Dong Jiang ◽  
Yong Zhou
Keyword(s):  
Carbon Nanotubes ◽  
Composite Film ◽  
Gas Sensor ◽  
Room Temperature ◽  
Composite Films ◽  
Ethanol Vapor ◽  
Interdigitated Electrodes ◽  
Multi Wall Carbon Nanotubes ◽  
Ethanol Sensing ◽  
Better Than

Abstract: In this paper, Polyepichlorohyron(PECH)/multi-wall carbon nanotubes(MWCNTs) composite films and PECH/multi-wall carbon nanotubes twolayer film were deposited on interdigitated electrodes by airbrush technology to detect ethanol vapor of various concentrations at room temperature. Thickness and structure of the film were taken into account, so films of different thicknesses and with different structures were prepared respectively. The responses of the sensors to ethanol showed that composite film had a higher response thantwolayer film, and the thick composite film performed better than its counterpart when they were exposed to ethanol vapor.

Room temperature gas sensor based on tin dioxide-carbon nanotubes composite films

2014 ◽  
Vol 190 ◽  
pp. 227-233 ◽  
Author(s):  
Frank Mendoza ◽  
Dionne M. Hernández ◽  
Vladimir Makarov ◽  
Emmanuel Febus ◽  
Brad R. Weiner ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gas Sensor ◽  
Room Temperature ◽  
Tin Dioxide ◽  
Composite Films

scholarly journals Significantly Improved Dielectric Performance of Poly(1-butene)-Based Composite Films via Filling Polydopamine Modified Ba(Zr0.2Ti0.8)O3-Coated Multiwalled Carbon Nanotubes Nanoparticles

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 285
Author(s):  
Lingfei Li ◽  
Qiu Sun ◽  
Xiangqun Chen ◽  
Zhaohua Jiang ◽  
Yongjun Xu
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Constant ◽  
Energy Storage ◽  
Composite Film ◽  
Multiwalled Carbon Nanotubes ◽  
Sol Gel ◽  
Composite Films ◽  
Weak Electric Field ◽  
Multiwalled Carbon ◽  
Dielectric Performance

The low dielectric constant of the nonpolar polymer poly(1-butene) (PB-1) limits its application as a diaphragm element in energy storage capacitors. In this work, Ba(Zr0.2Ti0.8)O3-coated multiwalled carbon nanotubes (BZT@MWCNTs) were first prepared by using the sol–gel hydrothermal method and then modified with polydopamine (PDA) via noncovalent polymerization. Finally, PB-1 matrix composite films filled with PDA-modified BZT@MWCNTs nanoparticles were fabricated through a solution-casting method. Results indicated that the PDA-modified BZT@MWCNTs had good dispersion and binding force in the PB-1 matrix. These characteristics improved the dielectric and energy storage performances of the films. Specifically, the PDA-modified 10 vol% BZT@ 0.5 vol% MWCNTs/PB-1 composite film exhibited the best dielectric performance. At 1 kHz, the dielectric constant of this film was 25.43, which was 12.7 times that of pure PB-1 films. Moreover, its dielectric loss was 0.0077. Furthermore, under the weak electric field of 210 MV·m−1, the highest energy density of the PDA-modified 10 vol% BZT@ 0.5 vol% MWCNTs/PB-1 composite film was 4.57 J·cm−3, which was over 3.5 times that of PB-1 film (≈1.3 J·cm−3 at 388 MV·m−1).

Chemiresistive gas sensor for the sensitive detection of nitrogen dioxide based on nitrogen doped graphene nanosheets

RSC Advances ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 1527-1534 ◽  
Author(s):  
Mahabul Shaik ◽  
V. K. Rao ◽  
Manish Gupta ◽  
K. S. R. C. Murthy ◽  
Rajeev Jain
Keyword(s):  
Nitrogen Dioxide ◽  
Gas Sensor ◽  
Room Temperature ◽  
Graphene Nanosheets ◽  
Sensitive Detection ◽  
Graphene Nanosheet ◽  
Interdigitated Electrodes ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Nitrogen doped graphene nanosheet coated interdigitated electrodes for sensitive detection of NO2 gas at room temperature.

Solvent exchange synthesis of C-doped ZnO bunches and their enhanced ethanol sensing properties

2019 ◽  
Vol 13 (02) ◽  
pp. 2050003
Author(s):  
Jingzhou yin ◽  
Qiaoqi Li ◽  
Rongqing Li ◽  
LiLi Zhang ◽  
Chao Tang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Zinc Complex ◽  
Ethanol Vapor ◽  
Solvent Exchange ◽  
Excellent Response ◽  
Good Linearity ◽  
Morphology And Structure ◽  
Potential Applications ◽  
Doped Zno ◽  
Ethanol Sensing

In this study, zinc complex bunches have been synthesized by a simple solvent exchange approach without any surfactant at room temperature. The zinc complex can be converted to C-doped ZnO bunches by a subsequent annealed process at 500∘C for 2[Formula: see text]h. The morphology and structure results show that the rectangle-shaped ZnO bunches are assembled by ZnO disks. The as-prepared C-doped ZnO bunches exhibit the highest sensitivity to 100[Formula: see text]ppm ethanol vapor at 240∘C. In addition the C-doped ZnO bunches also show excellent response-recover properties and stability, and good linearity in the range of 5–400[Formula: see text]ppm for potential applications.

A novel SnO2 gas sensor doped with carbon nanotubes operating at room temperature

2004 ◽  
Vol 101 (1-2) ◽  
pp. 81-89 ◽  
Author(s):  
Bee-Yu Wei ◽  
Ming-Chih Hsu ◽  
Pi-Guey Su ◽  
Hong-Ming Lin ◽  
Ren-Jang Wu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gas Sensor ◽  
Room Temperature
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