Understanding the formation and growth of Ag nanoparticles on silver chromate induced by electron irradiation in electron microscope: A combined experimental and theoretical study
Ver/ Abrir
Impacto
Scholar |
Otros documentos de la autoría: Fabbro, Maria T.; Gracia, Lourdes; Silva, Gabriela S.; Santos, Luís P. S.; Andres, Juan; Cordoncillo, Eloisa; Longo, Elson
Metadatos
Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7013
comunitat-uji-handle3:10234/8638
comunitat-uji-handle4:
INVESTIGACIONMetadatos
Título
Understanding the formation and growth of Ag nanoparticles on silver chromate induced by electron irradiation in electron microscope: A combined experimental and theoretical studyAutoría
Fecha de publicación
2016Editor
ElsevierISSN
0022-4596Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.sciencedirect.com/science/article/pii/S0022459616301232Versión
info:eu-repo/semantics/acceptedVersionPalabras clave / Materias
Resumen
Ag2CrO4 microcrystals were synthesized using the co-precipitation method. These microcrystals were
characterized through X-ray diffraction (XRD) with Rietveld analysis, field-emission scanning electron
microscopy ... [+]
Ag2CrO4 microcrystals were synthesized using the co-precipitation method. These microcrystals were
characterized through X-ray diffraction (XRD) with Rietveld analysis, field-emission scanning electron
microscopy (FE-SEM), transmission electron microscopy (TEM) with energy-dispersive spectroscopy
(EDS), micro-Raman (MR). XRD patterns and Rietveld refinement data showed that the material exhibits
an orthorhombic structure without any deleterious phases. FE-SEM and TEM micrographs revealed the
morphology and the growth of Ag nanoparticles on Ag2CrO4 microcrystals during electron beam irradiation.
These events were directly monitored in real-time. Their optical properties were investigated
using ultraviolet-visible (UV–vis) diffuse reflectance spectroscopy that allowed the calculation of the
optical band gap energy. Theoretical analyses based on the density functional theory level indicate that
the incorporation of electrons is responsible for structural modifications and formation of defects on the
[AgO6] and [AgO4] clusters, generating ideal conditions for the growth of Ag nanoparticles. [-]
Publicado en
Journal of Solid State Chemistry 239 (2016) 220–227Derechos de acceso
Copyright Elsevier Inc. All rights reserved.
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
Aparece en las colecciones
- QFA_Articles [829]