Polyvinyl alcohol–In2O3 nanocomposite films: synthesis, characterization and gas sensing properties

RSC Advances ◽  
2012 ◽  
Vol 2 (18) ◽  
pp. 7180 ◽  
Author(s):  
Anshu Singhal ◽  
M. Kaur ◽  
K.A. Dubey ◽  
Y.K. Bhardwaj ◽  
D. Jain ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Gas Sensing ◽  
Nanocomposite Films ◽  
Sensing Properties ◽  
Gas Sensing Properties

Enhancing the NO2 gas sensing properties of rGO/SnO2 nanocomposite films by using microporous substrates

2017 ◽  
Vol 248 ◽  
pp. 560-570 ◽  
Author(s):  
Xiangyi Zhu ◽  
Yongcai Guo ◽  
Hao Ren ◽  
Chao Gao ◽  
Yong Zhou
Keyword(s):  
Gas Sensing ◽  
Nanocomposite Films ◽  
Sensing Properties ◽  
Gas Sensing Properties

scholarly journals Synthesis, Characterization and Gas Sensing Study of ZnO-SnO2 Nanocomposite Thin Films

Chemosensors ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 124
Author(s):  
Victor V. Petrov ◽  
Victor V. Sysoev ◽  
Aleksandra P. Starnikova ◽  
Maria G. Volkova ◽  
Zamir Kh. Kalazhokov ◽  
...  
Keyword(s):  
Low Temperature ◽  
Tin Dioxide ◽  
Gas Sensing ◽  
Solid Phase ◽  
Nanocomposite Films ◽  
Oxide Material ◽  
X Ray ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Low Temperature Pyrolysis

Thin nanocomposite films composed of ZnO and SnO2 at 0.5–5 mol.% concentrations were synthesized by a new solid-phase low-temperature pyrolysis under the developed protocols. This hetero-oxide material was thoroughly studied by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES) techniques to be compared with electrical and gas-sensing properties. We have found that the films have a poly-nanocrystal structure of ZnO and SnO2 crystals with characteristic grain sizes at 10–15 nm range. When comparing the chemiresistive response of the films with varied tin dioxide content, the sample of Sn:Zn optimum ratio taken as 1:99 yields 1.5-fold improvement upon to 5–50 ppm NO2 exposure at 200 °C. We argue that these remarkable changes have matured from both a reducing the intergrain potential barrier down to 0.58 eV and increasing the concentration of anionic vacancies at this rational composite. The results demonstrate that solid-phase low-temperature pyrolysis is a powerful technique for adjusting the functional gas-sensing properties of hetero-oxide film via modifying the ratio of the oxide components.

Preparation of One-dimensional Pt/SnO2 Nanofibers and NOx Gas-sensing Properties

2013 ◽  
Vol 28 (6) ◽  
pp. 584-588 ◽  
Author(s):  
Shuang XU ◽  
Ying YANG ◽  
Hong-Yuan WU ◽  
Chao JIANG ◽  
Li-Qiang JING ◽  
...  
Keyword(s):  
Gas Sensing ◽  
One Dimensional ◽  
Sensing Properties ◽  
Gas Sensing Properties

Controllable biomolecule-assisted synthesis and gas sensing properties of In 2 O 3 micro/nanostructures with double phases

2017 ◽  
Vol 239 ◽  
pp. 270-278 ◽  
Author(s):  
Wenhui Zhang ◽  
Wenchao Zhang ◽  
Bin Chen ◽  
Rong Shao ◽  
Rongfeng Guan ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties
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