Light irradiation effect on the gas sensing properties of the ZnO nanostructures

2019 ◽  
Author(s):  
Anna O. Dikovska ◽  
Georgi Avdeev ◽  
Nikolay Nedyalkov ◽  
Genoveva Atanasova ◽  
Tina Dilova ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Light Irradiation ◽  
Irradiation Effect ◽  
Zno Nanostructures ◽  
Sensing Properties ◽  
Gas Sensing Properties

scholarly journals Evaluation of gas-sensing properties of ZnO nanostructures electrochemically doped with Au nanophases

2016 ◽  
Vol 7 ◽  
pp. 22-31 ◽  
Author(s):  
Elena Dilonardo ◽  
Michele Penza ◽  
Marco Alvisi ◽  
Cinzia Di Franco ◽  
Francesco Palmisano ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Gas Sensing ◽  
Low Cost ◽  
Sol Gel ◽  
Zno Nanostructures ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Zno Powders ◽  
One Step ◽  
Chemiresistive Gas Sensors

A one-step electrochemical method based on sacrificial anode electrolysis (SAE) was used to deposit stabilized gold nanoparticles (Au NPs) directly on the surface of nanostructured ZnO powders, previously synthesized through a sol–gel process. The effect of thermal annealing temperatures (300 and 550 °C) on chemical, morphological, and structural properties of pristine and Au-doped ZnO nancomposites (Au@ZnO) was investigated. Transmission and scanning electron microscopy (TEM and SEM), as well as X-ray photoelectron spectroscopy (XPS), revealed the successful deposition of nanoscale gold on the surface of spherical and rod-like ZnO nanostructures, obtained after annealing at 300 and 550 °C, respectively. The pristine ZnO and Au@ZnO nanocomposites are proposed as active layer in chemiresistive gas sensors for low-cost processing. Gas-sensing measurements towards NO2 were collected at 300 °C, evaluating not only the Au-doping effect, but also the influence of the different ZnO nanostructures on the gas-sensing properties.

scholarly journals From 1D and 2D ZnO nanostructures to 3D hierarchical structures with enhanced gas sensing properties

Nanoscale ◽  
2014 ◽  
Vol 6 (1) ◽  
pp. 235-247 ◽  
Author(s):  
Mohammad R. Alenezi ◽  
Simon J. Henley ◽  
Neil G. Emerson ◽  
S. Ravi P. Silva
Keyword(s):  
Gas Sensing ◽  
Hierarchical Structures ◽  
Zno Nanostructures ◽  
Sensing Properties ◽  
Gas Sensing Properties

Point defects assisted NH3 gas sensing properties in ZnO nanostructures

2015 ◽  
Vol 212 ◽  
pp. 10-17 ◽  
Author(s):  
P. Sundara Venkatesh ◽  
P. Dharmaraj ◽  
V. Purushothaman ◽  
V. Ramakrishnan ◽  
K. Jeganathan
Keyword(s):  
Point Defects ◽  
Gas Sensing ◽  
Zno Nanostructures ◽  
Sensing Properties ◽  
Gas Sensing Properties

A comparative study of the gas sensing properties of hierarchical ZnO nanostructures

2016 ◽  
Vol 13 (7-9) ◽  
pp. 688-692 ◽  
Author(s):  
Martine Capochichi-Gnambodoe ◽  
Yamina Ghozlane Habba ◽  
Yamin Leprince-Wang
Keyword(s):  
Comparative Study ◽  
Gas Sensing ◽  
Zno Nanostructures ◽  
Sensing Properties ◽  
Gas Sensing Properties

Room-temperature gas sensing properties of cobalt-doped ZnO Nanobelts with visible light irradiation

2011 ◽  
Vol 105 (2) ◽  
pp. 387-392 ◽  
Author(s):  
Liang Peng ◽  
Qingru Zeng ◽  
Huijuan Song ◽  
Pufeng Qin ◽  
Ming Lei ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Gas Sensing ◽  
Light Irradiation ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Doped Zno
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