In-situ self-assembled polyaniline/carbon nanotubes nanofiber thin films for ammonia gas sensors

2010 ◽  
Author(s):  
Huiling Tai ◽  
Yadong Jiang ◽  
Guangzhong Xie
Keyword(s):  
Thin Films ◽  
Carbon Nanotubes ◽  
Gas Sensors ◽  
Ammonia Gas ◽  
Self Assembled ◽  
Ammonia Gas Sensors

Ammonia Gas Sensors Based on In Situ and Drop-Coated Polyaniline Nanostructures

2013 ◽  
Vol 685 ◽  
pp. 134-138 ◽  
Author(s):  
Houria Kebiche ◽  
D. Debarnot ◽  
A. Merzouki ◽  
F. Poncin-Epaillard ◽  
N. Haddaoui
Keyword(s):  
Gas Sensors ◽  
Strong Dependence ◽  
Deposition Method ◽  
Ammonia Gas ◽  
Optical Absorbance ◽  
Glass Substrates ◽  
Mechanism Of Interaction ◽  
Ammonia Gas Sensors

Polyaniline (PANI) nanostructures are successfully prepared and deposited by in-situ and drop-coating on glass substrates without using any template. By changing synthesis and deposition method, a new morphology of nanostructures, “the cauliflower-like structure”, is developed. These nanostructures were then tested as optical ammonia gas sensors by measuring the optical absorbance variations at 632 nm at different NH3 concentrations. The results show a strong dependence of the morphology on the deposition method. The in-situ one leads to better performances compared to the drop coated one. Protonation /deprotonation is the mechanism of interaction between NH3 molecules and PANI nanostructures.

Ammonia gas sensors with Au-decorated carbon nanotubes

2018 ◽  
Vol 24 (10) ◽  
pp. 4207-4210 ◽  
Author(s):  
S. J. Young ◽  
Z. D. Lin
Keyword(s):  
Carbon Nanotubes ◽  
Gas Sensors ◽  
Ammonia Gas ◽  
Ammonia Gas Sensors

Synthesis and characterization of V2O5/PANI thin films for application in amperometric ammonia gas sensors

2019 ◽  
Vol 65 ◽  
pp. 116-120 ◽  
Author(s):  
M.C. Santos ◽  
O.H.C. Hamdan ◽  
S.A. Valverde ◽  
E.M. Guerra ◽  
R.F. Bianchi
Keyword(s):  
Thin Films ◽  
Gas Sensors ◽  
Synthesis And Characterization ◽  
Ammonia Gas ◽  
Ammonia Gas Sensors

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.

Development of low-cost ammonia gas sensors and data analysis algorithms to implement a monitoring grid of urban environmental pollutants

2012 ◽  
Vol 14 (6) ◽  
pp. 1565 ◽  
Author(s):  
Maria Chiesa ◽  
Federica Rigoni ◽  
Maria Paderno ◽  
Patrizia Borghetti ◽  
Giovanna Gagliotti ◽  
...  
Keyword(s):  
Data Analysis ◽  
Gas Sensors ◽  
Low Cost ◽  
Environmental Pollutants ◽  
Ammonia Gas ◽  
Ammonia Gas Sensors

scholarly journals High-Performance Wireless Ammonia Gas Sensors Based on Reduced Graphene Oxide and Nano-Silver Ink Hybrid Material Loaded on a Patch Antenna

Sensors ◽  
2017 ◽  
Vol 17 (9) ◽  
pp. 2070 ◽  
Author(s):  
Bian Wu ◽  
Xingfei Zhang ◽  
Beiju Huang ◽  
Yutong Zhao ◽  
Chuantong Cheng ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gas Sensors ◽  
Hybrid Material ◽  
Patch Antenna ◽  
High Performance ◽  
Ammonia Gas ◽  
Silver Ink ◽  
Reduced Graphene ◽  
Ammonia Gas Sensors
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