Buscar
Mostrando ítems 21-30 de 97
SnO2 nanoparticles functionalized in amorphous silica and glass
(Elsevier B.V. Sa, 2009-10-25)
Two different routes to obtain SnO2 nanoparticles, undoped and doped with rare earth metals (Eu or Pr), are described herein. The first route was based on the polymeric precursor method that led to the obtainment of SnO2 ...
Engineering of the band gap induced by Ce surface enrichment in Ce-doped SnO2 nanocrystals
(Elsevier B.V., 2020-10-15)
Surface modification of oxide semiconductors nanocrystals can promote news effects mainly in nanocrystals up to 10 nm in diameter. In these systems, the ratio surface/core is increased, and the quantum effect can not rule ...
Development of metal oxide nanoparticles by soft chemical method
(Elsevier ScienceOxford, 2009)
An extensive work for the study of SnO2 samples doped with x-mol% of Sb (x = 0, 6, 10, 14 and 18) is reported. The materials were prepared by
the polymeric precursor method (Pechini method), calcined for 4 h between 800 ...
Development of metal oxide nanoparticles by soft chemical method
(Elsevier B.V., 2009-01-01)
An extensive work for the study of SnO(2) samples doped with x-mol% of Sb (x = 0, 6, 10, 14 and 18) is reported. The materials were prepared by the polymeric precursor method (Pechini method), calcined for 4 h between 800 ...
Development of metal oxide nanoparticles by soft chemical method
(Elsevier B.V., 2009-01-01)
An extensive work for the study of SnO(2) samples doped with x-mol% of Sb (x = 0, 6, 10, 14 and 18) is reported. The materials were prepared by the polymeric precursor method (Pechini method), calcined for 4 h between 800 ...
Experimental study of the structural, microscopy and magnetic properties of Ni-doped SnO(2) nanoparticles
(ELSEVIER SCIENCE BV, 2010)
A polymer precursor method has been used to synthesize Ni-doped SnO(2) nanoparticles. X-ray diffraction (XRD) data analyses indicate the exclusive formation of nanosized particles with rutile-type phase (tetragonal SnO(2)) ...
Nanoparticle characterization of Er-doped SnO2 pellets obtained with different pH of colloidal suspension
(2013-08-28)
SnO2:2 at. %Er xerogel samples were obtained by sol-gel technique from colloidal suspensions with distinct pHs. The evaluation of critical regions inside the nanocrystallite is fundamental for the interpretation of the ...
Nanoparticle characterization of Er-doped SnO2 pellets obtained with different pH of colloidal suspension
(2013-08-28)
SnO2:2 at. %Er xerogel samples were obtained by sol-gel technique from colloidal suspensions with distinct pHs. The evaluation of critical regions inside the nanocrystallite is fundamental for the interpretation of the ...
Compressibility and structural behavior of pure and Fe-doped SnO 2 nanocrystals
(Elsevier Science, 2017-02)
We have performed high-pressure synchrotron X-ray diffraction experiments on nanoparticles of pure tin dioxide (particle size ~30nm) and 10 mol % Fe-doped tin dioxide (particle size ~18nm). The structural behavior of undoped ...