Long-term stability of SnO2 gas sensors: The role of impurities

2008 ◽  
Author(s):  
R.G. Pavelko ◽  
A.A. Vasiliev ◽  
X. Vilanova ◽  
V.G. Sevastyanov
Keyword(s):  
Gas Sensors ◽  
Term Stability ◽  
Long Term Stability

Novel quaternary oxide semiconductor for the application of gas sensors with long-term stability

2021 ◽  
Author(s):  
Chong Wang ◽  
Yiqun Zhang ◽  
Lianjing Zhao ◽  
Chenguang Wang ◽  
Fangmeng Liu ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Oxide Semiconductor ◽  
Term Stability ◽  
Long Term Stability

On the Role of H2 as an Inhibitor of UO2 Matrix Dissolution

2007 ◽  
Author(s):  
Juan Merino ◽  
Xavier Gaona ◽  
Lara Duro ◽  
Jordi Bruno ◽  
Aurora Marti´nez-Esparza
Keyword(s):  
Chemical Composition ◽  
Partial Pressure ◽  
Water Radiolysis ◽  
Water Interface ◽  
Spent Fuel ◽  
Dissolution Rates ◽  
Term Stability ◽  
Long Term Stability

The study of spent fuel behaviour under disposal conditions is usually based on conservative approaches assuming oxidising conditions produced by water radiolysis at the fuel/water interface. However, the presence of H2 from container corrosion can inhibit the dissolution of the UO2 matrix and enhance its long-term stability. Several studies have confirmed the decrease in dissolution rates when H2 is present in the system, although the exact mechanisms of interaction have not been fully established. This paper deals with a radiolytic modelling exercise to explore the consequences of the interaction of H2 with radicals generated by radiolysis in the homogeneous phase. The main conclusion is that in all the modelled cases the presence of H2 in the system leads to a decrease in matrix dissolution. The extent of the inhibition, and the threshold partial pressure for the inhibition to take place, both depend in a complex way on the chemical composition of the water and the type of radiation present in the system.

Role of Carbon Nanotubes to Enhance the Long-Term Stability of Dye-Sensitized Solar Cells

ACS Photonics ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 653-664 ◽  
Author(s):  
Mahyar Mohammadnezhad ◽  
Gurpreet Singh Selopal ◽  
Zhiming M. Wang ◽  
Barry Stansfield ◽  
Haiguang Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Term Stability ◽  
Long Term Stability ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

A facile PDMS coating approach to room-temperature gas sensors with high humidity resistance and long-term stability

2020 ◽  
Vol 325 ◽  
pp. 128810 ◽  
Author(s):  
Zhimin Gao ◽  
Guoshuai Song ◽  
Xuemin Zhang ◽  
Qian Li ◽  
Shuang Yang ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Room Temperature ◽  
High Humidity ◽  
Term Stability ◽  
Long Term Stability ◽  
Humidity Resistance ◽  
Pdms Coating
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