ISSN:
1573-4846
Keywords:
SnO2 xerogel
;
sintering
;
Eu3+ spectroscopy
;
XRD
;
EXAFS
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract 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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1026458212142
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