Buscar
Mostrando ítems 41-50 de 690
Effects of electron-electron interactions on excitonic absorption in charged self-assembled quantum dots
(Amer Physical SocCollege PkEUA, 2000)
Novos materiais multifuncionais para aplicação em fotocatálise
(Universidade Estadual Paulista (Unesp), 2016-03-30)
Este trabalho teve como objetivo a preparação, a caracterização estrutural e análise do potencial fotocatalítico de nanopartículas do tipo core@shell de ZnO@Cr, ZnO@Ni e dos compósitos de C/Zn@Cr e C/ZnO@Ni, combinando ...
Core Shell PdNi@Pd en la evaluación de la reacción de oxidación de ácido fórmico
(Universidad Autónoma Metropolitana (México). Unidad Azcapotzalco. División de Ciencias Básicas e Ingeniería., 2020)
Se sintetizaron estructuras core-shell con núcleo de la aleación Ni0.525Pd0.475 obtenida por aleado mecánico durante 30 horas de molienda y coraza de Pd mediante la técnica de crecimiento de semilla la cual se caracterizó ...
Hydrogenation of diacetyl over composite-supported egg-shell noble metal catalysts
(Springer, 2017-09)
Two composite supports with a mixed inorganic–organic structure were synthesized: BTAl and UTAl. Hydrophilic–hydrophobic dual properties of the supports were suitable for preparing egg-shell-supported metal catalysts for ...
Interfacial photoluminescence emission properties of core/shell Al2O3/ZrO2
(Royal Soc Chemistry, 2012-01-01)
This research investigated the synthesis of the Al2O3/ZrO2 core-shell system using a polymeric precursor method. The interfacial features emission show the possibility for control of the luminescence behaviour. X-ray ...
Interfacial photoluminescence emission properties of core/shell Al2O3/ZrO2
(Royal Soc Chemistry, 2012-01-01)
This research investigated the synthesis of the Al2O3/ZrO2 core-shell system using a polymeric precursor method. The interfacial features emission show the possibility for control of the luminescence behaviour. X-ray ...
Combined use of electron and light microscopy techniques reveals false secondary shell units in Megaloolithidae eggshells
(Public Library of Science, 2016-05-04)
Abnormalities in the histo- and ultrastructure of the amniote eggshell are often related to diverse factors, such as ambient stress during egg formation, pathologies altering the physiology of the egg-laying females, or ...
Photoluminescence of core-shell nanoparticles made from yttrium stabilized zirconia powder grain coated with alumina
(2013-05-07)
A YSZ@Al2O3 nanocomposite was obtained by Al 2O3 coating on the surface of yttrium stabilized zirconia via a polymeric precursor method. The resulting core-shell structures were characterized by X-ray diffraction, scanning ...
Photoluminescence of core-shell nanoparticles made from yttrium stabilized zirconia powder grain coated with alumina
(2013-05-07)
A YSZ@Al2O3 nanocomposite was obtained by Al 2O3 coating on the surface of yttrium stabilized zirconia via a polymeric precursor method. The resulting core-shell structures were characterized by X-ray diffraction, scanning ...
Influence of the surface band structure on electron emission spectra from metal surfaces
(American Physical Society, 2014-04)
Electron distributions produced by grazing impact of fast protons on Mg(0001), Cu(111), Ag(111), and Au(111) surfaces are investigated, focusing on the effects of the electronic band structure. The process is described ...