Carbon nanotube-metal oxide nanocomposite gas sensing mechanism assessed via NO2 adsorption on n-WO3/p-MWCNT nanocomposites

2020 ◽  
Vol 46 (18) ◽  
pp. 29233-29243 ◽  
Author(s):  
Nguyen Manh Hung ◽  
Nguyen Duc Chinh ◽  
Tien Dai Nguyen ◽  
Eui Tae Kim ◽  
GyuSeok Choi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Metal Oxide ◽  
Gas Sensing ◽  
Sensing Mechanism ◽  
No2 Adsorption

scholarly journals Explosive Molecule Sensing at Lattice Defect Sites in Metallic Carbon Nanotubes

2021 ◽  
Author(s):  
Manasi Doshi ◽  
Eric Paul Fahrenthold
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Experimental Research ◽  
Gas Sensing ◽  
Lattice Defect ◽  
Sensing Mechanism ◽  
Defect Sites ◽  
Chemiresistive Sensing ◽  
Hazardous Gas

Explosives and hazardous gas sensing using carbon nanotube (CNT) based sensors has been a focus of considerable experimental research. The simplest sensors have employed a chemiresistive sensing mechanism, and rely...

Synthesis and gas sensing characteristic based on metal oxide modification multi wall carbon nanotube composites

2012 ◽  
Vol 258 (6) ◽  
pp. 1991-1994 ◽  
Author(s):  
Hongzhong Liu ◽  
Hui Ma ◽  
Weiman Zhou ◽  
Weihua Liu ◽  
Zheng Jie ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Metal Oxide ◽  
Gas Sensing ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Multi Wall Carbon Nanotube

B121 Gas sensing mechanism of carbon nanotube thin film

2015 ◽  
Vol 2015 (0) ◽  
pp. _B121-1_-_B121-2_
Author(s):  
Takuya Kokabu ◽  
Shuhei Inoue ◽  
Yukihiko Matsumura
Keyword(s):  
Thin Film ◽  
Carbon Nanotube ◽  
Gas Sensing ◽  
Sensing Mechanism

Thickness Effect and Mesoscopic Character of the Metal Oxide Gas Sensing Nano-Thin Films

2007 ◽  
Vol 121-123 ◽  
pp. 1341-1346
Author(s):  
Jian Ping Xing ◽  
Juan Li ◽  
Lei Zhou ◽  
Jian Ming Li ◽  
Nan Yuan Qiu
Keyword(s):  
Thin Films ◽  
Metal Oxide ◽  
Film Thickness ◽  
Characteristic Time ◽  
Gas Sensing ◽  
Diffusion Reaction ◽  
Thickness Effect ◽  
Optimum Thickness ◽  
Sensing Mechanism ◽  
Activity Energy

The characters of metal oxide gas sensing nano-thin films are studied. The formula of the dynamical thickness effect characteristic time is given. The relation of the sensitivity Sn and the film thickness l, the character of existing the optimum thickness, the character of the change of conductance activity energy with the film thickness are given also. The idea of diffusion reaction of gas sensing mechanism and the idea of mesoscopic effect in the nano-thin films are proposed.

Hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing

2007 ◽  
Vol 127 (1) ◽  
pp. 137-142 ◽  
Author(s):  
E ESPINOSA ◽  
R IONESCU ◽  
B CHAMBON ◽  
G BEDIS ◽  
E SOTTER ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Low Temperature ◽  
Metal Oxide ◽  
Gas Sensing ◽  
Multiwall Carbon Nanotube ◽  
Hybrid Metal Oxide ◽  
Multiwall Carbon ◽  
Nanotube Films

scholarly journals The Gas Sensing Mechanism of the Low-Dimension Carbon Composites with Metal Oxide Quantum Dots

2012 ◽  
Vol 32 ◽  
pp. 31-38 ◽  
Author(s):  
Hui Ma ◽  
Weiman Zhou ◽  
Wu Yuan ◽  
Zheng Jie ◽  
Hongzhong Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Metal Oxide ◽  
Gas Sensing ◽  
Carbon Composites ◽  
Sensing Mechanism ◽  
Low Dimension

Metal-oxide based ammonia gas sensors: A review

2020 ◽  
Vol 10 ◽  
Author(s):  
Priya Gupta ◽  
Savita Maurya ◽  
Narendra Kumar Pandey ◽  
Vernica Verma
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Review Paper ◽  
Gas Sensing ◽  
Gas Sensitivity ◽  
Ammonia Gas ◽  
Ammonia Sensing ◽  
Ammonia Gas Sensors

: This review paper encompasses a study of metal-oxide and their composite based gas sensors used for the detection of ammonia (NH3) gas. Metal-oxide has come into view as an encouraging choice in the gas sensor industry. This review paper focuses on the ammonia sensing principle of the metal oxides. It also includes various approaches adopted for increasing the gas sensitivity of metal-oxide sensors. Increasing the sensitivity of the ammonia gas sensor includes size effects and doping by metal or other metal oxides which will change the microstructure and morphology of the metal oxides. Different parameters that affect the performances like sensitivity, stability, and selectivity of gas sensors are discussed in this paper. Performances of the most operated metal oxides with strengths and limitations in ammonia gas sensing application are reviewed. The challenges for the development of high sensitive and selective ammonia gas sensor are also discussed.

scholarly journals Advanced development of metal oxide nanomaterials for H2 gas sensing applications

2021 ◽  
Author(s):  
Yushu Shi ◽  
Huiyan Xu ◽  
Tongyao Liu ◽  
Shah Zeb ◽  
Yong Nie ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Gas Sensing ◽  
The Past ◽  
Sensing Applications ◽  
The Future ◽  
Metal Oxide Nanomaterials ◽  
Nanomaterials Synthesis ◽  
Advanced Development

The scheme of the structure of this review includes an introduction from the metal oxide nanomaterials’ synthesis to application in H2 gas sensors—a vision from the past to the future.

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