NDLI: Features of the sol-gel process of formation of nanostructured gadolinium oxide

Content Provider	Springer Nature Link
Author	Bakovets, V. V. Trushnikova, L. N. Plyusnin, P. E. Korolkov, I. V. Dolgovesova, I. P. Pivovarova, T. D. Savintseva, S. A.
Copyright Year	2013
Abstract	The process of dehydration of Gd(OH)$_{3}$·nH$_{2}$O obtained by the sol-gel method from a solution of Gd(NO$_{3}$)$_{3}$, to Gd$_{2}$O$_{3}$ in the temperature range of 50–700°C was explored. The hydrogel and Gd$_{2}$O$_{3}$ structurization is shown to depend on the additives (AF-12 and 2-propanol). The final average particle size of Gd$_{2}$O$_{3}$ after annealing at 700°C is 20±2 nm, depending on the conditions of the synthesis. The resulting oxide particles are larger than the particles of yttrium oxide Y$_{2}$O$_{3}$ (17±2) obtained under the same conditions of the process due to the higher basicity of gadolinium and its higher coordination number with respect to the OH groups. This promotes the formation of crystalline phases of Gd(OH)$_{3}$ at lower temperature, 50–250°C, while maintaining a favorable structural short-range order in passing through an amorphous state to a crystalline Gd$_{2}$O$_{3}$.
Starting Page	1808
Ending Page	1814
Page Count	7
File Format	PDF
ISSN	10703632
Journal	Russian Journal of General Chemistry
Volume Number	83
Issue Number	10
e-ISSN	16083350
Language	English
Publisher	Springer US
Publisher Date	2013-11-14
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chemistry/Food Science
Content Type	Text
Resource Type	Article
Subject	Chemistry

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Features of the sol-gel process of formation of nanostructured gadolinium oxide