Solvothermal Reaction of Rare-Earth Metals in 2-Methoxyethanol and 2-Aminoethanol

In a previous paper, we reported that the reaction of cerium metal in 2‐methoxyethanol yielded a transparent colloidal solution of ultrafine (2 nm) ceria particles [M. Inoue, M. Kimura, T. Inui, Chem. Commun., 957 (1999)]. In this paper, the solvothermal reaction of other rare‐earth metals in 2‐meth...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2006-04, Vol.89 (4), p.1205-1211
Main Authors: Kobayashi, Takeo, Hosokawa, Saburo, Iwamoto, Shinji, Inoue, Masashi
Format: Article
Language:English
Subjects:
Acetic acid
Ceramics
Cerium
Cerium oxide
Cerium oxides
Chemistry
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Colloids
Ethanol
Exact sciences and technology
General and physical chemistry
Metals
Oxides
Rare earth metals
Tables
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Summary:In a previous paper, we reported that the reaction of cerium metal in 2‐methoxyethanol yielded a transparent colloidal solution of ultrafine (2 nm) ceria particles [M. Inoue, M. Kimura, T. Inui, Chem. Commun., 957 (1999)]. In this paper, the solvothermal reaction of other rare‐earth metals in 2‐methoxyethanol has been examined. Reactions of Sm and Yb metals in 2‐methoxyethanol at 300°C yielded transparent colloidal solutions of Sm2O3 and Yb2O3 particles. However, the reaction of rare‐earth metals of Y, Eu, Gd, and Tb in 2‐methoxyethanol at 300°C resulted in recovery of the starting materials. Transparent colloidal solutions of the oxides of these elements were obtained by reaction in the presence of a small amount of acetic acid. The solvothermal reaction of rare‐earth metals in 2‐aminoethanol was also examined.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2005.00870.x