Buscar
Mostrando ítems 1-10 de 25
Microstructural development and oxygen ion mobility in Sr, Ba, and Ca-doped LaAlO3 perovskites
(Univ Fed Rio De Janeiro, Lab Hidrogenio, 2020-01-01)
Perovskite-type materials have been extensively investigated in the attempt to find new electrolyte materials for Solid Oxide Fuel Cell that work at low temperatures. Among these materials, LaAlO3 stands out for presenting ...
Cerâmica de titanato de lantânio e lítio: sistematização de obtenção e crescimento de grão orientado induzido via cristais de aluminato de lantânio
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2018-09-10)
The research based on ionic conductive ceramics is part of the scientific innovation efforts applied to the industry of solid state batteries and sensors, which are fundamental for the development of new, more efficient ...
Effects of the Pechini's modified synthetic route on structural and photophysical properties of Eu3+ or Tb3+-doped LaAlO3
(2021-11-01)
Herein, it is reported the Pechini's synthesis of LaAlO3:Ln3+ (Ln = Eu3+ or Tb3+) varying doping concentration from 1 to 9 at.% to evaluate its influence on structure and luminescence. Sub-micrometric, high-crystalline and ...
Hydrogen production by steam reforming of ethanol over Ni-based catalysts promoted with noble metals
(ELSEVIER SCIENCE BV, 2009)
The catalytic activity of Ni/La(2)O(3)-Al(2)O(3) Catalysts modified with noble metals(Pt and Pd) was investigated in the steam reforming of ethanol. The catalysts were characterized by ICP, S(BFT), X-ray diffraction, ...
Aluminato de lantânio no planejamento de sistemas core@shell luminescentes funcionalizados contendo os íons Eu3+ e Tb3+ para aplicação em dispositivos conversores de luz
(Universidade Estadual Paulista (Unesp), 2019-03-01)
Neste trabalho desenvolveu-se novos materiais híbridos inorgânico-orgânico do tipo multi shell com potencial aplicação em dispositivos conversores de luz. Como componente inorgânico utilizou-se um sistema do tipo core/shell ...
Síntese e estudo das propriedades luminescentes de cristais LaAlO3:C para aplicação em dosimetria da radiação ultravioleta
(Universidade Federal de Minas GeraisUFMG, 2018-06-28)
In this work it was performed the synthesis of undoped and 0,1 wt.% carbon-doped polycrystalline lanthanum aluminate (LaAlO3). Their thermoluminescent properties were investigated for application in ultraviolet radiation ...
Stability of the Photocatalytic Activity of TiO2 Deposited by Reactive Sputtering
(ABM, ABC, ABPol, 2021-07-05)
The photocatalytic activity and stability of TiO2 thin films deposited by reactive sputtering were evaluated through many cycles of aqueous methylene blue solutions photodegradation. Tests were performed in TiO2 films ...
Síntesis, procesamiento vía spray-dryer y caracterización de compositos de sistemas RE2Zr2O7 y REAlO3
(Universidad Michoacana de San Nicolás de Hidalgo, 2017-07)
The synthesis, characterization and measurement of mechanical and thermal properties of the ceramic composites based on the gadolinium-gadolinium zirconate and lanthanum-aluminate zirconate zirconate systems is reported. ...
Preparation and characterization of a homemade Josephson junction prepared from a thin film sintered in a domestic microwave oven
(2016-03-01)
A homemade Josephson junction was successfully obtained using a superconductor thin film of the BSCCO system. The film was deposited on a lanthanum aluminate, produced from a commercial powder with a nominal composition ...