Trimethylamine and ethanol sensing properties of NiGa2O4 nano-materials prepared by co-precipitation method

2018 ◽  
Vol 255 ◽  
pp. 2058-2065 ◽  
Author(s):  
Xiangfeng Chu ◽  
Jiulin Wang ◽  
Linshan Bai ◽  
Yongping Dong ◽  
Wenqi Sun ◽  
...  
Keyword(s):  
Precipitation Method ◽  
Nano Materials ◽  
Sensing Properties ◽  
Ethanol Sensing ◽  
Co Precipitation

Gas sensing properties of magnesium ferrite prepared by co-precipitation method

2009 ◽  
Vol 488 (1) ◽  
pp. 270-272 ◽  
Author(s):  
P.P. Hankare ◽  
S.D. Jadhav ◽  
U.B. Sankpal ◽  
R.P. Patil ◽  
R. Sasikala ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Precipitation Method ◽  
Magnesium Ferrite ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Co Precipitation

Synthesis and Gas Sensing Properties of SnO2-CuO Nanocomposites

2013 ◽  
Vol 645 ◽  
pp. 129-132 ◽  
Author(s):  
Jantasom Khanidtha ◽  
Suttinart Noothongkaew ◽  
Supakorn Pukird
Keyword(s):  
Room Temperature ◽  
Gas Sensing ◽  
Precipitation Method ◽  
Monoclinic Structure ◽  
X Ray Diffraction ◽  
Sem Images ◽  
X Ray ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Co Precipitation

SnO2-CuO nanocomposites have been synthesized with the simple co-precipitation method for gas sensing properties. Sn and CuO powder were the starting materials. The synthesized products were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results show that SnO2-CuO nanocomposites have a tetragonal and monoclinic structure, respectively. SEM images verify that the some microballs are up to 10 µm and nanorods have a diameter range from 10-100 nm, while length ranges a few micrometers. The nanocomposite products were highly sensitivity to CO2gas at room temperature.

scholarly journals Gas sensing properties of CuFe2 O4 nanoparticles prepared by spray co-precipitation method

2019 ◽  
Vol 57 (1) ◽  
pp. 32-38
Author(s):  
Pham Thi Thanh Hoa ◽  
Nguyen Phuc Duong ◽  
To Thanh Loan ◽  
Luong Ngoc Anh ◽  
Nguyen Minh Hong
Keyword(s):  
Gas Sensing ◽  
Precipitation Method ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Co Precipitation

The formaldehyde sensing properties of CdGa2O4 prepared by co-precipitation method

2021 ◽  
pp. 129834
Author(s):  
Xue Li ◽  
Yin Zhang ◽  
Anish Bhattacharya ◽  
Xiangfeng Chu ◽  
Shiming Liang ◽  
...  
Keyword(s):  
Precipitation Method ◽  
Sensing Properties ◽  
Formaldehyde Sensing ◽  
Co Precipitation

scholarly journals Gas Sensing Properties of ZnO-SnO2 Nanocomposite

2019 ◽  
Vol 32 (1) ◽  
pp. 64-68 ◽  
Author(s):  
Pushpendra Kumar ◽  
Deepak Kumar
Keyword(s):  
Gas Sensing ◽  
Rutile Phase ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
Wurtzite Phase ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Response And Recovery ◽  
Uv Visible ◽  
Co Precipitation

In present study, ZnO-SnO2 nanocomposite was synthesized by co-precipitation method and its sensing properties with respect to carbon monoxide gas were investigated. X-ray diffraction pattern shows the exhaustive evolution of hexagonal wurtzite phase of ZnO and rutile phase of SnO2. Morphological study was done by FE-SEM and optical characterization was done by UV-visible spectrophotometer. To study the sensing properties, material was layered on conducting substrate and resistance was recorded in the presence of air and CO gas at different operating temperature. Sensing responses of pure ZnO and ZnO-SnO2 composite was also compared. ZnO-SnO2 showed much enhanced response along with better response and recovery time compared to pure ZnO.

scholarly journals Characteristics and Sensing Properties of the La1-xNdxCo0.3Fe0.7O3 System for CO Gas Sensors

2016 ◽  
Vol 1 (1) ◽  
pp. 36
Author(s):  
J.C. Ding ◽  
Z.P. Wu ◽  
H.Y. Li ◽  
Z.X. Cai ◽  
X.X. Wang ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Gas Sensing ◽  
Precipitation Method ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Co Precipitation ◽  
Perovskite Type ◽  
Co Gas

<p>A series of nanostructured La<sub>1-x</sub>Nd<sub>x</sub>Co<sub>0.3</sub>Fe<sub>0.7</sub>O<sub>3</sub> perovskite-type (x ranging from 0 to 1) were prepared using the co-precipitation method. CO gas sensing properties of La<sub>1-x</sub>Nd<sub>x</sub>Co<sub>0.3</sub>Fe<sub>0.7</sub>O<sub>3</sub> sensors were performed. La<sub>0.7</sub>Nd<sub>0.3</sub>Co<sub>0.3</sub>Fe<sub>0.7</sub>O<sub>3</sub> sensor showed the highest response at 250 °C (S=52.8).</p>

scholarly journals Study on the Synthesis of ZnO Nanoparticles Using Azadirachta indica Extracts for the Fabrication of a Gas Sensor

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7685
Author(s):  
Tirtha Raj Acharya ◽  
Pradeep Lamichhane ◽  
Rizwan Wahab ◽  
Dinesh Kumar Chaudhary ◽  
Bhanu Shrestha ◽  
...  
Keyword(s):  
Thin Films ◽  
Spray Pyrolysis Technique ◽  
Precipitation Method ◽  
Plant Proteins ◽  
Zno Nps ◽  
Crystallite Sizes ◽  
Response And Recovery ◽  
The Fourier Transform ◽  
Ethanol Sensing ◽  
Co Precipitation

This paper compared the effects of A. indica plant proteins over chemical methods in the morphology of zinc oxide nanoparticles (ZnO NPs) prepared by a co-precipitation method, and ethanol sensing performance of prepared thin films deposited over a fluorene-doped tin oxide (FTO) bind glass substrate using spray pyrolysis technique. The average crystallite sizes and diameters of the grain-sized cluster ZnO NPs were 25 and (701.79 ± 176.21) nm for an undoped sample and 20 and (489.99 ± 112.96) nm for A. india dye-doped sample. The fourier transform infrared spectroscopy (FTIR) analysis confirmed the formation of the Zn–O bond at 450 cm−1, and also showed the presence of plant proteins due to A. indica dye extracts. ZnO NPs films exhibited good response (up to 51 and 72% for without and with A. indica dye-doped extracts, respectively) toward ethanol vapors with quick response-recovery characteristics at a temperature of 250 °C for undoped and 225 °C for A. indica dye-doped ZnO thin films. The interaction of A. indica dye extracts helps to decrease the operating temperature and increased the response and recovery rates of the sensor, which may be due to an increase in the specific surface area, resulting in adsorption of more oxygen and hence high response results.

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