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

Rational design and in situ growth of SnO2/CMF composites: insightful understanding of the formaldehyde gas sensing mechanism and enhanced gas sensing properties

2020 ◽  
Vol 8 (36) ◽  
pp. 12418-12426 ◽  
Author(s):  
Yuxi Li ◽  
Na Luo ◽  
Wenshuang Zhang ◽  
Qingmin Hu ◽  
Xiaohong Wang ◽  
...  
Keyword(s):  
Rational Design ◽  
Gas Sensing ◽  
In Situ Growth ◽  
Sensing Properties ◽  
Sensing Mechanism ◽  
Gas Sensing Properties ◽  
And Performance ◽  
Excellent Selectivity

In this paper, 3D porous hierarchical structured SnO2/CMF showed excellent selectivity and sensitivity to HCHO. In addition, the sensing mechanism and performance of SnO2/CMF were studied in depth.

In situ growth of SnO2 nanosheets on a substrate via hydrothermal synthesis assisted by electrospinning and the gas sensing properties of SnO2/polyaniline nanocomposites

RSC Advances ◽  
2016 ◽  
Vol 6 (78) ◽  
pp. 74944-74956 ◽  
Author(s):  
Yang Li ◽  
Huitao Ban ◽  
Mingfei Jiao ◽  
Mujie Yang
Keyword(s):  
Hydrothermal Synthesis ◽  
Gas Sensor ◽  
High Performance ◽  
Gas Sensing ◽  
In Situ Growth ◽  
Sensing Properties ◽  
Gas Sensing Properties

In situ preparation of SnO2 nanosheet/polyaniline composite on a substrate and its applications as a high performance gas sensor.

Enhanced acetone sensing properties based on in situ growth SnO2 nanotube arrays

2021 ◽  
Vol 32 (24) ◽  
pp. 245503
Author(s):  
Pengfei Cheng ◽  
Chen Wang ◽  
Yinglin Wang ◽  
Luping Xu ◽  
Fan Dang ◽  
...  
Keyword(s):  
Nanotube Arrays ◽  
In Situ Growth ◽  
Sensing Properties ◽  
Sno2 Nanotube

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.

Effect of Au Doped WO3 Gas Sensors for NO2 Detection

2011 ◽  
Vol 492 ◽  
pp. 308-311 ◽  
Author(s):  
Wu Bin Gao ◽  
Cheng Dong ◽  
Xu Liu ◽  
Yun Han Ling ◽  
Jia Lin Sun
Keyword(s):  
Gas Sensors ◽  
Gas Sensing ◽  
Point Contact ◽  
X Ray ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Tungsten Filaments ◽  
Gas Response ◽  
Contact Sensors

Gas sensor based on point contact tungsten trioxide (WO3) was prepared by in-situ induction-heating thermal oxidation of tungsten filaments. X-ray diffractometry (XRD) and field emission scanning electron microscopy (FESEM) were employed to analyze the phase and the morphology of the fabricated thin films. The results showed that the WO3films exhibited a monoclinic phase and were composed of hierarchical micro and nano crystals. The NO2(1-8 ppm) sensing properties of the point contact sensors based on Pure and Au-sputtering doped (2.5 at%) WO3films were investigated. The results showed that the gas sensing properties of the Au (2.5 at%) doped WO3sensors were superior to those of the undoped. The obtained point contact WO3sensor exhibited the maximum NO2gas response at 100°C.

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

scholarly journals Investigation of the structural, optical and gas sensing properties of PANI coated Cu–ZnS microsphere composite

RSC Advances ◽  
2020 ◽  
Vol 10 (45) ◽  
pp. 26604-26612
Author(s):  
Hemalatha Parangusan ◽  
Jolly Bhadra ◽  
Zubair Ahmad ◽  
Shoaib Mallick ◽  
Farid Touati ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Sensing Properties ◽  
Porous Microspheres ◽  
Gas Sensing Properties ◽  
Polymerization Method

Polyaniline (PANI)/Cu–ZnS composites with porous microspheres are prepared by a hydrothermal and in situ polymerization method.

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