Analysis of electrical properties using complex impedance spectroscopy in solid solutions (PbTiO3)0.97-(LaFeO3)0.03 prepared by sol-gel technique

2020 ◽  
Vol 44 (1-2) ◽  
pp. 23-31 ◽  
Author(s):  
L. H. Omari ◽  
R. Moubah ◽  
A. Boutahar ◽  
L. Hajji ◽  
R. El Ouatib
2015 ◽  
Author(s):  
K. Gangaprasad ◽  
T. Durga Rao ◽  
Manish K. Niranjan ◽  
Saket Asthana

2010 ◽  
Vol 10 (1) ◽  
pp. e68-e70 ◽  
Author(s):  
Joonmyoung Lee ◽  
El Mostafa Bourim ◽  
Dongku Shin ◽  
Jong-Sook Lee ◽  
Dong-jun Seong ◽  
...  

MRS Advances ◽  
2019 ◽  
Vol 4 (61-62) ◽  
pp. 3433-3440
Author(s):  
E. Gonzalez-A ◽  
R. Rangel ◽  
J. Lara ◽  
J. J. Alvarado ◽  
P. Bartolo

AbstractPt/Ce1-xRuxO2 and Ir/Ce1-xRuxO2 catalysts were prepared through the sol-gel technique, under microwave heating. In a first step, the Ce1-xRuxO2 solid solutions were prepared. Subsequently, an incipient wet impregnation process was carried out to homogeneously achieve the dispersion, either of platinum or iridium nanoparticles. The Pt/Ce1-xRuxO2 and Ir/Ce1-xRuxO2 catalysts were characterized by means of SEM, XRD, XPS, TEM, and specific surface area measurements. Crystal size and shifting into the CeO2 structure were detected after ruthenium doping producing the Ce1-xRuxO2 solid-solutions. Trough XPS technique Pt and Ir nanoparticles were found evenly dispersed in a metallic state. Those features allow us to foresee that, in the near future, these materials could be used efficiently as catalysts for oxidation process.


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