Short Range Order Evolution in the Preparation of SnO2 Based Materials
Carregando...
Fontes externas
Fontes externas
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Springer Nature
Tipo
Artigo
Direito de acesso
Acesso restrito
Fontes externas
Fontes externas
Resumo
The evolution of Eu3+ doped SnO2 xerogels to the cassiterite structure observed during sintering was studied by means of Eu3+ spectroscopy, XRD and EXAFS at the Sn K-edge. Eu3+ ions adsorbed at the surface of colloidal particles present a broad distribution of sites, typical of oxide glasses. With sintering at 300°C, this distribution is still broadened. Crystallization is clearly observed by the three techniques with increasing sintering temperature. It is found that the addition of Eu3+ limits the crystallite growth.
Descrição
Palavras-chave
Eu3+ spectroscopy , EXAFS , Sintering , SnO2 xerogel , XRD , Adsorption , Composition effects , Crystal growth , Crystallization , Doping (additives) , Europium , Particles (particulate matter) , Spectroscopic analysis , Thermal effects , Tin compounds , X ray diffraction analysis , Extended X ray absorption fine structures (EXAFS) , Xerogels , Gels
Idioma
Inglês
Citação
Journal of Sol-Gel Science and Technology, v. 8, n. 1-3, p. 261-268, 1997.
