Facile Fabrication of Polyaniline Nanocapsule Modified Zinc Oxide Hexagonal Microdiscs for H2S Gas Sensing Applications

2019 ◽  
Vol 58 (5) ◽  
pp. 1906-1913 ◽  
Author(s):  
Dongzhi Zhang ◽  
Xin Fan ◽  
Xianfeng Hao ◽  
Guokang Dong
Keyword(s):  
Zinc Oxide ◽  
Gas Sensing ◽  
Sensing Applications ◽  
Facile Fabrication

scholarly journals ZnO Nanostructures for Gas Sensing Applications: From Tetrapods-Based Chemoresistive Devices to Carbon Fiber Integration

Proceedings ◽  
2019 ◽  
Vol 14 (1) ◽  
pp. 42 ◽  
Author(s):  
Davide Calestani
Keyword(s):  
Zinc Oxide ◽  
Carbon Fiber ◽  
Gas Sensing ◽  
Zno Nanostructures ◽  
Sensing Applications ◽  
Wide Range

Zinc oxide (ZnO) nanostructures can be grown in different morphologies by means of a wide range of techniques. […]

scholarly journals Flame-Spray-Made Undoped Zinc Oxide Films for Gas Sensing Applications

Sensors ◽  
2010 ◽  
Vol 10 (8) ◽  
pp. 7863-7873 ◽  
Author(s):  
Nittaya Tamaekong ◽  
Chaikarn Liewhiran ◽  
Anurat Wisitsoraat ◽  
Sukon Phanichphant
Keyword(s):  
Zinc Oxide ◽  
Gas Sensing ◽  
Oxide Films ◽  
Flame Spray ◽  
Zinc Oxide Films ◽  
Sensing Applications

Growth of Zinc Oxide Nanowires and Nanobelts for Gas Sensing Applications

2005 ◽  
Vol 23 ◽  
pp. 27-30 ◽  
Author(s):  
M.K. Hossain ◽  
S.C. Ghosh ◽  
Y. Boontongkong ◽  
Chanchana Thanachayanont ◽  
Joydeep Dutta
Keyword(s):  
Zinc Oxide ◽  
Electrical Resistance ◽  
Gas Sensing ◽  
Electrical Conductance ◽  
Analyte Molecule ◽  
Sensor Material ◽  
Surface And Interface ◽  
Sensing Applications ◽  
Sensing Material ◽  
Specific Material

Zinc Oxide (ZnO) is a very useful as a solid state gas sensor material. In chemical sensing the surface and interface interactions between the analyte molecules and the sensing material is all but important that is read through the changes in electrical conductance. In that sense, nano-objects with a large surface atom/bulk atom ratio, like nanoparticles and nanowires, are potentially the best chemical sensors. The mechanism envisioned involves the adsorption (and eventually diffusion) of the analyte molecule at the surface that induces a change in the electrical resistance of the nano-object. The most convenient way to measure changes in electrical resistance in such devices is to obtain the specific material as nanowires or as connected nanoparticles. Here, we will discuss about a low-temperature wet-chemical process of synthesizing ZnO nanoparticles, nanowires and nanobelts for application as gas sensors.

Zinc oxide nanostructured layers for gas sensing applications

Laser Physics ◽  
2011 ◽  
Vol 21 (3) ◽  
pp. 588-597 ◽  
Author(s):  
A. P. Caricato ◽  
A. Cretí ◽  
A. Luches ◽  
M. Lomascolo ◽  
M. Martino ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Gas Sensing ◽  
Sensing Applications ◽  
Nanostructured Layers

scholarly journals Facile Fabrication of an Ammonia-Gas Sensor Using Electrochemically Synthesised Polyaniline on Commercial Screen-Printed Three-Electrode Systems

Sensors ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 169
Author(s):  
Anja Korent ◽  
Kristina Žagar Soderžnik ◽  
Sašo Šturm ◽  
Kristina Žužek Rožman ◽  
Nathalie Redon ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Electrode System ◽  
Ammonia Gas ◽  
Sensing Applications ◽  
Sensor Fabrication ◽  
Electrochemically Deposited ◽  
Facile Fabrication ◽  
Gas Measurements ◽  
The Individual ◽  
Screen Printed

Polyaniline (PANI) is a conducting polymer, widely used in gas-sensing applications. Due to its classification as a semiconductor, PANI is also used to detect reducing ammonia gas (NH3), which is a well-known and studied topic. However, easier, cheaper and more straightforward procedures for sensor fabrication are still the subject of much research. In the presented work, we describe a novel, more controllable, synthesis approach to creating NH3 PANI-based receptor elements. The PANI was electrochemically deposited via cyclic voltammetry (CV) on screen-printed electrodes (SPEs). The morphology, composition and surface of the deposited PANI layer on the Au electrode were characterised with electron microscopy, Fourier-transform infrared spectroscopy and profilometry. Prior to the gas-chamber measurement, the SPE was suitably modified by Au sputtering the individual connections between the three-electrode system, thus showing a feasible way of converting a conventional three-electrode electrochemical SPE system into a two-electrode NH3-gas detecting system. The feasibility of the gas measurements’ characterisation was improved using the gas analyser. The gas-sensing ability of the PANI-Au-SPE was studied in the range 32–1100 ppb of NH3, and the sensor performed well in terms of repeatability, reproducibility and sensitivity.

ZnAl2 O4 -Functionalized Zinc Oxide Microstructures for Highly Selective Hydrogen Gas Sensing Applications

2018 ◽  
Vol 215 (7) ◽  
pp. 1700772 ◽  
Author(s):  
Mathias Hoppe ◽  
Oleg Lupan ◽  
Vasile Postica ◽  
Niklas Wolff ◽  
Viola Duppel ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Gas Sensing ◽  
Hydrogen Gas ◽  
Sensing Applications
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