Gas sensing properties of WO3 doped rutile TiO2 thick film at high operating temperature

2009 ◽  
Vol 9 (4) ◽  
pp. e235-e238 ◽  
Author(s):  
Sung-Eun Jo ◽  
Byeong-Geun Kang ◽  
Sungmoo Heo ◽  
Soonho Song ◽  
Yong-Jun Kim
Keyword(s):  
Thick Film ◽  
Gas Sensing ◽  
Operating Temperature ◽  
Rutile Tio2 ◽  
Sensing Properties ◽  
High Operating Temperature ◽  
Gas Sensing Properties

TUNGSTEN-DOPED TiO2 NANOLAYERS WITH IMPROVED CO2 GAS SENSING PROPERTIES FOR ENVIRONMENTAL APPLICATIONS

2017 ◽  
Vol 24 (Supp02) ◽  
pp. 1850024 ◽  
Author(s):  
MALIHEH SABERI ◽  
ALI AKBAR ASHKARRAN
Keyword(s):  
Electron Microscopy ◽  
Gas Sensing ◽  
Operating Temperature ◽  
Sol Gel ◽  
Optimum Operating ◽  
Optimum Operating Temperature ◽  
Sensing Properties ◽  
Vis Spectroscopy ◽  
Gas Sensing Properties ◽  
Tungsten Concentration

Tungsten-doped TiO2 gas sensors were successfully synthesized using sol–gel process and spin coating technique. The fabricated sensor was characterized by field emission scanning electron microscopy (FE-SEM), ultraviolet visible (UV–Vis) spectroscopy, transmission electron microscopy (TEM), X-Ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. Gas sensing properties of pristine and tungsten-doped TiO2 nanolayers (NLs) were probed by detection of CO2 gas. A series of experiments were conducted in order to find the optimum operating temperature of the prepared sensors and also the optimum value of tungsten concentration in TiO2 matrix. It was found that introducing tungsten into the TiO2 matrix enhanced the gas sensing performance. The maximum response was found to be (1.37) for 0.001[Formula: see text]g tungsten-doped TiO2 NLs at 200[Formula: see text]C as an optimum operating temperature.

In situ growth of WO3 nanotube arrays and their H2S gas sensing properties for reduced operating temperature

2020 ◽  
Vol 271 ◽  
pp. 127716
Author(s):  
Xiaoguang San ◽  
Yiming Lu ◽  
Guosheng Wang ◽  
Dan Meng ◽  
Xiaohui Gong ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Operating Temperature ◽  
Nanotube Arrays ◽  
In Situ Growth ◽  
Sensing Properties ◽  
Gas Sensing Properties

Microstructure and gas sensing properties of the ZnO thick film treated by hydrothermal method

2010 ◽  
Vol 151 (1) ◽  
pp. 107-113 ◽  
Author(s):  
Zikui Bai ◽  
Changsheng Xie ◽  
Shunping Zhang ◽  
Liuxian Zhang ◽  
Qinyi Zhang ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Thick Film ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties

Gas sensing properties of thin- and thick-film tin-oxide materials

2001 ◽  
Vol 77 (1-2) ◽  
pp. 55-61 ◽  
Author(s):  
Th Becker ◽  
S Ahlers ◽  
Chr Bosch-v.Braunmühl ◽  
G Müller ◽  
O Kiesewetter
Keyword(s):  
Thick Film ◽  
Tin Oxide ◽  
Gas Sensing ◽  
Oxide Materials ◽  
Sensing Properties ◽  
Gas Sensing Properties

Gas sensing properties of nanocrystalline La0.75Ba0.25FeO3 thick-film sensors

2012 ◽  
Vol 171-172 ◽  
pp. 302-308 ◽  
Author(s):  
Kai Fan ◽  
Hongwei Qin ◽  
Zhongli Zhang ◽  
Li Sun ◽  
Lihui Sun ◽  
...  
Keyword(s):  
Thick Film ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties

Enhanced gas sensing properties of chemiresistors based on ZnO nanorods electrodecorated with Au and Pd nanoparticles

MRS Advances ◽  
2017 ◽  
Vol 2 (18) ◽  
pp. 1001-1007 ◽  
Author(s):  
E. Dilonardo ◽  
M. Alvisi ◽  
G. Cassano ◽  
M. Penza
Keyword(s):  
Chemical Nature ◽  
Gas Sensing ◽  
Operating Temperature ◽  
Zno Nanorods ◽  
Pd Nanoparticles ◽  
Zno Nanostructures ◽  
Sensing Properties ◽  
Deposited Metal ◽  
Gas Sensing Properties ◽  
Pollutant Gases

ABSTRACTColloidal Au and Pd nanoparticles (NPs) were directly electrochemically synthesized, by sacrificial anode electrolysis (SAE), on hydrothermal ZnO nanostructures, previously desiccated; further, the functionalized ZnO nanostructures were subjected to thermal annealing at 550°C to obtain stable ZnO nanorods (NRs), superficially decorated by naked metal NPs. The both pristine and metal functionalized ZnO NRs were proposed as active layer in chemiresistive sensors for environmental monitoring to detect pollutant gases (e.g. NO2, C4H10).The effect of the presence and of the chemical nature of the deposited metal NPs on the performance of ZnO NRs-based gas sensor (e.g. sensitivity, selectivity and recovery) was evaluated, comparing the sensing results with those of pristine ZnO NRs. In particular, the gas sensing properties of pristine and metal-functionalized ZnO NRs were studied at an operating temperature of 300°C towards a various range of concentration of different gaseous pollutants.

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