scholarly journals Carbon-Nanotube Loaded Antenna-Based Ammonia Gas Sensor

2011 ◽  
Vol 59 (10) ◽  
pp. 2665-2673 ◽  
Author(s):  
Hoseon Lee ◽  
George Shaker ◽  
Krishna Naishadham ◽  
Xiaojuan Song ◽  
Michael McKinley ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensor ◽  
Ammonia Gas ◽  
Loaded Antenna

Doping effect on self-assembled films of polyaniline and carbon nanotube applied as ammonia gas sensor

2017 ◽  
Vol 245 ◽  
pp. 25-33 ◽  
Author(s):  
Marcelo Eising ◽  
Carlos Eduardo Cava ◽  
Rodrigo Villegas Salvatierra ◽  
Aldo José Gorgatti Zarbin ◽  
Lucimara Stolz Roman
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensor ◽  
Doping Effect ◽  
Ammonia Gas ◽  
Self Assembled

Role of Electric Field on Sensing Mechanism of Carbon Nanotube Based Ammonia Gas Sensor

2013 ◽  
Vol 11 (8) ◽  
pp. 1460-1464 ◽  
Author(s):  
Prabhash Mishra ◽  
Prerna Balyan ◽  
. Harsh ◽  
S. S. Islam
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
Gas Sensor ◽  
Ammonia Gas ◽  
Sensing Mechanism

Bead Necklace-Shaped Single Walled Carbon Nanotube-Polypyrrole Nanocomposites for Ammonia Gas Sensor

2021 ◽  
Vol 29 (6) ◽  
pp. 418-422
Author(s):  
Wen Xuan Du ◽  
Jun-Ho Byeon ◽  
Sungmin Kang ◽  
Masaki Takada ◽  
Jin-Yeol Kim
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensor ◽  
Ammonia Gas ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon

Carbon nanotube ammonia gas sensor: a comparative analysis between impedance spectroscopy and resistive measurements

2021 ◽  
Author(s):  
Ali Douaki ◽  
Martina Aurora Costa Angeli ◽  
Mukhtar Ahmad ◽  
Mattia Petrelli ◽  
Bajramshahe Shkodra ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Carbon Nanotube ◽  
Impedance Spectroscopy ◽  
Gas Sensor ◽  
Ammonia Gas

Enhanced performance of core-shell structured polyaniline at helical carbon nanotube hybrids for ammonia gas sensor

2014 ◽  
Vol 105 (20) ◽  
pp. 203109 ◽  
Author(s):  
Xin Tian ◽  
Qiang Wang ◽  
Xiangnan Chen ◽  
Weiqing Yang ◽  
Zuquan Wu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensor ◽  
Core Shell ◽  
Ammonia Gas

Synthesis of Polyaniline-Zinc Oxide Composites and Its Usage as Ammonia Gas Sensor

2014 ◽  
Vol 1 (4) ◽  
pp. 16-19
Author(s):  
Vivek Talwar ◽  
◽  
Ravi Chand Singh ◽  
Keyword(s):  
Zinc Oxide ◽  
Gas Sensor ◽  
Ammonia Gas ◽  
Oxide Composites

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.

Carbon Nanotube Gas Sensor Fabricated on Anodic Aluminum Oxide

2007 ◽  
Vol 124-126 ◽  
pp. 1309-1312
Author(s):  
Nguyen Duc Hoa ◽  
Nguyen Van Quy ◽  
Gyu Seok Choi ◽  
You Suk Cho ◽  
Se Young Jeong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Gas Sensor ◽  
Chemical Vapor ◽  
Fast Response ◽  
Device Fabrication ◽  
Alumina Oxide ◽  
Response And Recovery ◽  
New Type ◽  
P Type

A new type of gas sensor was realized by directly depositing carbon nanotube on nano channels of the anodic alumina oxide (AAO) fabricated on p-type silicon substrate. The carbon nanotubes were synthesized by thermal chemical vapor deposition at a very high temperature of 1200 oC to improve the crystallinity. The device fabrication process was also developed. The contact of carbon nanotubes and p-type Si substrate showed a Schottky behavior, and the Schottky barrier height increased with exposure to gases while the overall conductivity decreased. The sensors showed fast response and recovery to ammonia gas upon the filling (400 mTorr) and evacuation.

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