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Mostrando ítems 1-10 de 2067
Anomalous X-ray diffraction study of Pr-substituted BaCeO3 − δ
(Wiley Blackwell Publishing, Inc, 2015-08)
The effect of Pr doping on the crystal structure and site occupancy was studied for the nominally synthesized BaCe1 − xPrxO3 − δ (x = 0, 0.2, 0.4, 0.6 and 0.8) perovskites using anomalous X‐ray powder diffraction (AXRD) ...
Classes multisseriadas nas escolas do campo de Ibitit??: da proposta de interven????o formativa de professores ??s efetivas pr??ticas pedag??gicas.
(Faculdade de Educa????oMestrado Profissional em Educa????o, Curr??culo, Linguagens e Inova????es Pedag??gicas.UFBA/Facedbrasil, 2018-12-05)
Increasing Conductivity in Proton Conductors BaCeO3-d doped with Pr
(Electrochemical Society, 2013-10)
In this work we explore the effect of partial substitution of Ce for<br />Pr ions in BaCe1-xPrxO3-δ (0 ≤ x ≤0.8) perovskites with the aim of increasing the oxygen vacancies concentration and H+ charge carriers. The oxides ...
Study of BaCe0.4Zr0.4Y0.2O3-δ/BaCe0.8Pr0.2O3-δ (BCZY/BCP) bilayer membrane for Protonic Conductor Solid Oxide Fuel Cells (PC-SOFC)
(Pergamon-Elsevier Science Ltd, 2020-02)
This paper address the blocking of the electronic conductivity for a BaCe0.8Pr0.2O3-δ (BCP) material due to the addition of a BaCe0.4Zr0.4Y0.2O3-δ (BCZY) thin layer. Barium cerates (BCP and BCZY) show interesting features ...
ESTUDO DOS SISTEMAS CeO2(1-x) :Pr6O11(x); CeO2(1-x):Fe2O3(x) E CeO2(0,95-x): Pr6O11(0,05):Fe2O3(x) PARA APLICAÇÃO COMO PIGMENTOS INORGÂNICOS DE BAIXA TOXICIDADE
(UNIVERSIDADE ESTADUAL DE PONTA GROSSABRQuímicaPrograma de Pós-Graduação em Química AplicadaUEPG, 2017)
Pr??ticas de higiene em uma feira livre da cidade de Salvador (BA)
(Associa????o Brasileira de P??s-Gradua????o em Sa??de Coletiva, 2010-06)
XPS study of the surface properties and Ni particle size determination of Ni supported catalysts
(Wiley, 2014-04)
The surface properties of Ni/MgAl2O4 catalysts doped with Ce or Pr were analyzed by XPS after treatment in an inert and reductive atmosphere at 400 °C. The Ce-promoted solids presented the Ce3+/Ce4+ couple on the surface ...
Desenvolvimento de material BaCexPr1-xO3 (0 ≤ X ≤ 1) com estrutura perovskita para oxidação catalítica do CO a CO2 em reator de leito fixo
(Universidade Federal do Rio Grande do NorteBrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA QUÍMICA, 2015-06-19)
Barium Cerate (BaCeO3) is perovskite type structure of ABO3, wherein A and B are metal
cations. These materials, or doped, have been studied by having characteristics that make them
promising for the application in fuel ...
Structures, Phase Fields, and Mixed Protonic-Electronic Conductivity of Ba-Deficient, Pr-Substituted BaZr 0.7 Ce 0.2 Y 0.1 O 3-δ
(American Chemical Society, 2018-12)
The BaZr 0.7 Ce 0.2 Y 0.1 O 3-δ -BaPrO 3-δ perovskite system, of interest for high-temperature electrochemical applications involving mixed protonic-electronic conductivity, forms a solid-solution with a wide interval of ...