Au@NiO core-shell nanoparticles as a p-type gas sensor: Novel synthesis, characterization, and their gas sensing properties with sensing mechanism

2018 ◽  
Vol 268 ◽  
pp. 223-231 ◽  
Author(s):  
Sanjit Manohar Majhi ◽  
Gautam Kumar Naik ◽  
Hu-Jun Lee ◽  
Ho-Geun Song ◽  
Cheul-Ro Lee ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Gas Sensing ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Sensing Properties ◽  
Sensing Mechanism ◽  
Novel Synthesis ◽  
Gas Sensing Properties ◽  
P Type ◽  
Core Shell Nanoparticles

Porous, n–p type ultra-long, ZnO@Bi2O3 heterojunction nanorods - based NO2 gas sensor: new insights towards charge transport characteristics

2020 ◽  
Vol 22 (14) ◽  
pp. 7524-7536 ◽  
Author(s):  
Vishnuraj Ramakrishnan ◽  
Keerthi G. Nair ◽  
Jayaseelan Dhakshinamoorthy ◽  
K. R. Ravi ◽  
Biji Pullithadathil
Keyword(s):  
Charge Transport ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Solvothermal Method ◽  
Sensing Properties ◽  
No2 Gas Sensor ◽  
Gas Sensing Properties ◽  
P Type

Porous n–p type ultra-long ZnO@Bi2O3 heterojunction nanorods have been synthesized through a solvothermal method and their complex charge transport characteristics pertaining to NO2 gas sensing properties have been investigated.

The effect of shell thickness on gas sensing properties of core-shell fibers

2021 ◽  
Vol 332 ◽  
pp. 129456
Author(s):  
Ming Zhang ◽  
Ning Sui ◽  
Rui Wang ◽  
Tong Zhang
Keyword(s):  
Shell Thickness ◽  
Gas Sensing ◽  
Core Shell ◽  
Sensing Properties ◽  
Gas Sensing Properties

Gas sensing properties of Zn-doped p-type nickel ferrite

2012 ◽  
Vol 171-172 ◽  
pp. 354-360 ◽  
Author(s):  
A. Sutka ◽  
G. Mezinskis ◽  
A. Lusis ◽  
M. Stingaciu
Keyword(s):  
Nickel Ferrite ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
P Type ◽  
Type Nickel

scholarly journals Preparation of Nanostructured SnO2-NiO Composite Semiconductor for Gas Sensor Applications

2021 ◽  
pp. 391-403
Author(s):  
S. Kumar ◽  
P. Gowthaman ◽  
J. Deenathayalan
Keyword(s):  
Gas Sensor ◽  
Composite Nanofibers ◽  
Volume Fraction ◽  
Gas Sensing ◽  
Precipitation Method ◽  
Response Sensitivity ◽  
X Ray ◽  
Sensing Properties ◽  
Working Temperature ◽  
Gas Sensing Properties

Electro spinning technology combined with chemical precipitation method and high-temperature calcination was used to prepare SnO2-NiO composite semiconductor nanofibers with different Sn content. Scanning electron microscope (SEM), X-ray diffractometer (XRD) and energy dispersive X-ray spectrometer (EDS) were used to characterize the morphology, structure and content of various elements of the sample. Using ethanol as the target gas, the gas sensing properties of SnO2-NiO nanofibers and the influence of Sn content on the gas sensing properties of composite nanofibers were explored. The research results show that SnO2-NiO composite nanofibers have a three-dimensional network structure, and the SnO2 composite can significantly enhance the gas sensitivity of NiO nanofibers. With increase of SnO2 content, the response sensitivity of composite fibers to ethanol gas increases, and the response sensitivity of composite nanofibers with the highest response to ethanol gas with a volume fraction of 100×10-6 at the optimal working temperature of 160℃ are13.4;It is 8.38 times the maximum response sensitivity of NiO nanofibers. Compared with the common ethanol gas sensor MQ-3 on the market, SnO2-NiO composite nanofibers have a lower optimal working temperature and higher response sensitivity, which has certain practical application value

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