Accurate Sensors Offering Unrestricted Recal113ration And Long Term Stability For Determining High Temperatures On The Basis Of Gas-sensitive Effects Of Different Gases On Metal Oxides

1995 ◽  
Author(s):  
J. Gerblinger ◽  
U. Heppel ◽  
H. Meixner
Keyword(s):  
Metal Oxides ◽  
High Temperatures ◽  
Term Stability ◽  
Long Term Stability ◽  
Different Gases

Long-Term Stability at High Temperatures for Birefringence in PAZO/PAH Layer-by-Layer Films

2012 ◽  
Vol 4 (3) ◽  
pp. 1470-1477 ◽  
Author(s):  
Quirina Ferreira ◽  
Paulo A. Ribeiro ◽  
Osvaldo N. Oliveira ◽  
Maria Raposo
Keyword(s):  
High Temperatures ◽  
Layer By Layer ◽  
Term Stability ◽  
Long Term Stability

Investigation of long term stability of arc-induced gratings heat treated at high temperatures

2010 ◽  
Author(s):  
Gaspar Rego ◽  
Paulo Caldas ◽  
Oleg Ivanov ◽  
José Luís Santos
Keyword(s):  
High Temperatures ◽  
Term Stability ◽  
Long Term Stability ◽  
Heat Treated

scholarly journals Study of lifetime of Platinum Modified Metal Oxides Electrodes

2020 ◽  
Vol 14 (4) ◽  
pp. 1479-1488
Author(s):  
Lemeyonouin Aliou Guillaume Pohan ◽  
Ollo Kambiré ◽  
Mohamed Berté ◽  
Lassiné Ouattara
Keyword(s):  
Metal Oxides ◽  
Platinum Metal ◽  
Porous Structures ◽  
Term Stability ◽  
Long Term Stability ◽  
Physical Measurements ◽  
Platinum Coating ◽  
The One ◽  
A Current

Pt, IrO2, RuO2, Pt-IrO2 and Pt-RuO2 electrodes have been shown to be effective in their application in various fields. However, it is necessary to study their long-term stability. So, our objective is to prepare them and study their lifetime using intensiostatic measurement. Then they were prepared at 400 °C on titanium plates used as a substrate. Physical measurements (scanning electron microscopy) of these anodes revealed that their surface are rough and porous structures. Lifetime study was carried out in H2SO4 9 N and under a current density of 410 mA /cm2. The long-term stability of Pt improved when coupled to IrO2 in contrast to RuO2. From this study, the performance of the electrode was found to increase in the order: RuO2 < Pt-RuO2 < Pt < Pt-IrO2 < IrO2. For RuO2 and IrO2 pure electrodes, the deactivation would be due to the dissolution of precursors deposited on the titanium. For the Pt pure electrode, deactivation would be due to the detachment of platinum coating. The deactivation of the Pt-IrO2 and Pt-RuO2 electrode would be due, on the one hand to the platinum detachment from IrO2 or RuO2 and on the other hand to the metal oxides (IrO2 or RuO2) dissolution.Keywords: Electrodes, platinum, metal oxides, lifetime.

Investigation of the long-term stability of arc-induced gratings heat treated at high temperatures

2011 ◽  
Vol 284 (1) ◽  
pp. 169-171 ◽  
Author(s):  
Gaspar Rego ◽  
Paulo Caldas ◽  
Oleg Ivanov ◽  
José Luís Santos
Keyword(s):  
High Temperatures ◽  
Term Stability ◽  
Long Term Stability ◽  
Heat Treated
Sign in / Sign up

Export Citation Format

Share Document