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Shape Changes of Pt Nanoparticles Induced by Deposition on Mesoporous Silica
(Wiley, 2012-01)
Polyvinylpyrollidone (PVP)-capped platinum nanoparticles (NPs) are found to change shape from spherical to flat when deposited on mesoporous silica substrates (SBA-15). Transmission electron microscopy (TEM), small-angle ...
Local order around rare earth ions during the devitrification of oxyfluoride glasses
(American Institute of Physics (AIP), 2008-06-28)
Erbium L-3-edge extended x-ray absorption fine structure (EXAFS) measurements were performed on rare earth doped fluorosilicate and fluoroborate glasses and glass ceramics. The well known nucleating effects of erbium ions ...
Local order around rare earth ions during the devitrification of oxyfluoride glasses
(American Institute of Physics (AIP), 2008-06-28)
Erbium L-3-edge extended x-ray absorption fine structure (EXAFS) measurements were performed on rare earth doped fluorosilicate and fluoroborate glasses and glass ceramics. The well known nucleating effects of erbium ions ...
Synthesis of Highly Stable Surfactant-free Cu5 Clusters in Water
(American Chemical Society, 2016-07)
We report the synthesis, for the first time, of small, highly monodisperse Cu5 clusters in water without any surfactant or protective agent. For this purpose, we used a new approach based on the kinetic control of the ...
Study of the Nature and Location of Silver in Ag-Exchanged Mordenite Catalysts. Characterization by Spectroscopic Techniques
(American Chemical Society, 2013-11)
Catalysts based on Na-mordenite (symbolized as M) exchanged with 5, 10, and 15 wt % of Ag were characterized by X-ray photoelectron spectroscopy (XPS), extended X-ray absorption fine line structure (EXAFS), X-ray absorption ...
Estudo de perfis em profundidade de dopantes magnéticos em óxidos semicondutores usando técnicas espectroscópicas de raio X sob incidência rasanteStudy of magnetic dopants depth profile in oxide-semiconductors using grazing incidence x-ray spectroscopic techniques
(Universidade Federal de Viçosa, 2016)
Sintering and crystallite growth of nanocrystalline copper doped tin oxide
(Amer Chemical Soc, 1999-04-08)
The effect of Cu2+ contents and of firing temperature on sintering and crystallite growth of nanocrystalline SnO2 xerogels was analyzed by thermoanalysis (mass loss (TG), linear shrinkage, and differential thermal analysis ...