Structural organization and thermal properties of the Sb2O3-SbPO4 glass system
Carregando...
Fontes externas
Fontes externas
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Royal Soc Chemistry
Royal Society of Chemistry (RSC)
Royal Society of Chemistry (RSC)
Tipo
Artigo
Direito de acesso
Acesso restrito
Fontes externas
Fontes externas
Resumo
The structural organization of Sb2O3-SbPO4 glasses has been studied by FTIR, Raman, P-31 MAS and spin echo NMR, Mossbauer and X-ray absorption spectroscopy (EXAFS and XANES at K and L-3,L-1-Sb edges). The combined results can be explained in terms of two potential mechanisms describing the change of the Sb(m) local environment upon incorporation of Q((4))-type phosphate. The formation of the latter species requires anionic compensation that may be adjusted by (a) formation of non bridging oxygen or (b) formation of SbO4E- groups (E = non-bonding electron pair). The second model is favored.
Descrição
Palavras-chave
Idioma
Inglês
Citação
Journal of Materials Chemistry. Cambridge: Royal Soc Chemistry, v. 14, n. 23, p. 3398-3405, 2004.
