scholarly journals Gas Sensing Properties of Ordered Mesoporous SnO2

Sensors ◽  
2006 ◽  
Vol 6 (4) ◽  
pp. 318-323 ◽  
Author(s):  
Thorsten Wagner ◽  
Claus-Dieter Kohl ◽  
Michael Fröba ◽  
Michael Tiemann
Keyword(s):  
Gas Sensing ◽  
Sensing Properties ◽  
Ordered Mesoporous ◽  
Gas Sensing Properties ◽  
Mesoporous Sno2

Gas-sensing properties of ordered mesoporous SnO2 and effects of coatings thereof

2003 ◽  
Vol 93 (1-3) ◽  
pp. 590-600 ◽  
Author(s):  
Takeo Hyodo ◽  
Shunji Abe ◽  
Yasuhiro Shimizu ◽  
Makoto Egashira
Keyword(s):  
Gas Sensing ◽  
Sensing Properties ◽  
Ordered Mesoporous ◽  
Gas Sensing Properties ◽  
Mesoporous Sno2

Enhanced NO x Gas Sensing Properties of Ordered Mesoporous WO3 /ZnO Prepared by Electroless Plating

2017 ◽  
Vol 5 (9) ◽  
pp. 1701167 ◽  
Author(s):  
Ji Han ◽  
Tian-yang Wang ◽  
Tian-tian Li ◽  
Hui Yu ◽  
Ying Yang ◽  
...  
Keyword(s):  
Electroless Plating ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Ordered Mesoporous ◽  
Gas Sensing Properties

Preparation and gas-sensing properties of thermally stable mesoporous SnO2

2002 ◽  
Vol 83 (1-3) ◽  
pp. 209-215 ◽  
Author(s):  
Takeo Hyodo ◽  
Norihiro Nishida ◽  
Yasuhiro Shimizu ◽  
Makoto Egashira
Keyword(s):  
Gas Sensing ◽  
Thermally Stable ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Mesoporous Sno2

scholarly journals Nanometric morpho-structural characterization of mesoporous metal oxide semiconductors for chemo-resistive gas sensors

2019 ◽  
Vol 1 (1) ◽  
pp. 34-35
Keyword(s):  
Gas Sensors ◽  
Metallic Nanoparticles ◽  
Gas Sensing ◽  
Analytical Electron Microscopy ◽  
Experimental Conditions ◽  
Nano Structure ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Pd Clusters ◽  
Mesoporous Sno2

SnO2 and ZnO are among the most studied semiconductor oxides for applications as gas sensing devices for detecting and monitoring the presence of toxic gases such as CO, NO, NO2. Enhanced sensing properties have been recently reported on gas sensor based on SnO2-ZnO composites due to the formation of hetero-junction between ZnO and SnO2 grains and the contribution of a depleted layer at the intergrain ZnO-SnO2 interfaces. The sensing characteristics can be further improved by adding metallic nanoparticles with a catalytic activity, like Pt or Pd. Along with the electrical properties of such a complex system, morphology plays an essential role in facilitating and enhancing the interaction with the surrounding gas. In our work, ZnO doped SnO2 mesoporous system for gas sensors has been prepared using solvothermal methods in various experimental conditions. Aiming for a proper optimization of the gas sensing properties, the above mentioned system has been decorated with Pd using wet spray method. This work presents an in depth structural and morphological study by combined techniques of analytical electron microscopy on the mesoporous SnO2-ZnO systems decorated with Pd in function of the synthesis conditions. Electron tomography has been employed for a complete, 3D investigation of the Pd clusters distribution within the mesoporous SnO2-ZnO matrix. By a proper image segmentation Pd clusters have been successfully isolated in the surrounding ZnO-doped SnO2 matrix, thus allowing more complex correlations between the micro/nano-structure and the gas sensing properties.

Sign in / Sign up

Export Citation Format

Share Document