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Synthesis of Rare Earth Iron‐Mixed Oxide Nanoparticles by Solvothermal Methods
Author(s) -
Hosokawa Saburo,
Jeon HyungJoon,
Iwamoto Shinji,
Inoue Masashi
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03295.x
Subject(s) - solvothermal synthesis , orthorhombic crystal system , materials science , crystallite , inorganic chemistry , nanoparticle , chemistry , nuclear chemistry , crystal structure , crystallography , nanotechnology , metallurgy
We investigated the effects of starting materials, solvents, and amine additives on solvothermal reaction of the rare earth (RE) compounds with iron (III) compounds. Hexagonal YbFeO 3 was formed by the solvothermal reactions of ytterbium acetate and iron acetylacetonate in the absence and presence of amines. On the other hand, the solvothermal reaction of Yb chlorides and iron acetylacetonate in 1,4‐butanediol in the presence of 1,6‐hexanediamine (N/Cl=15) yielded orthorhombic YbFeO 3 ( o ‐YbFeO 3 ) having a perovskite structure. o ‐YbFeO 3 crystals were also formed by the reaction in 1,5‐pentanediol and 1,6‐hexanediol. The crystallite sizes of o ‐YbFeO 3 obtained by the reaction in 1,5‐pentanediol and 1,6‐hexanediol were 59 and 49 nm, respectively, which were much smaller than that obtained in 1,4‐butanediol (76 nm). XRD‐pure orthorhombic REFeO 3 phases for Dy–Er with small ionic sizes were synthesized by the solvothermal reactions of RE chlorides and iron acetylacetonate.