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Synthesis and Characterization of Nanocrystalline Lanthanide Oxysulfide via a La(OH) 3 Gel Solvothermal Route
Author(s) -
Jiang Yang,
Wu Yue,
Xie Yi,
Qian YiTai
Publication year - 2000
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.1151-2916.2000.tb01603.x
Subject(s) - nanocrystalline material , lanthanide , nanorod , materials science , solvothermal synthesis , transmission electron microscopy , solvent , characterization (materials science) , crystallography , hexagonal crystal system , nanocrystal , powder diffraction , chemical engineering , nuclear chemistry , nanotechnology , chemistry , organic chemistry , ion , engineering
A La(OH) 3 gel solvothermal process has been developed for the preparation of nanocrystalline lanthanide oxysulfide (La 2 O 2 S) in polar solvents at 300°C through a reaction between a La(OH) 3 gel and K 2 S. X‐ray powder diffraction (XRD) indicated that the product was hexagonal La 2 O 2 S with cell parameters a = 4.046 Å and c = 6.951 Å. Transmission electronic microscopy (TEM) showed that different morphology nanocrystallites were formed, including particles with diameters of about 10 nm and nanorods about 10 nm in diameter and 300 nm in length, depending on the solvent.