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A New Method for Synthesizing Li 2.06 Nb 0.18 Ti 0.76 O 3 Powder at Low Temperatures
Author(s) -
Wang Xia,
Li Wei,
Gu Jinlou,
Li Yongsheng,
Li Liang,
Shi Jianlin
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.1551-2916.2009.03208.x
Subject(s) - calcination , materials science , solid solution , phase (matter) , triethanolamine , raw material , citric acid , inert , chemical engineering , hydrogen peroxide , nuclear chemistry , analytical chemistry (journal) , metallurgy , chemistry , catalysis , organic chemistry , engineering , biochemistry , chromatography
Li 2.06 Nb 0.18 Ti 0.76 O 3 powder has been successfully prepared at low temperatures via a facile and manageable, activated pretreatment on the inert raw Nb 2 O 5 . It is demonstrated that with triethanolamine, citric acid, and hydrogen peroxide, this simple pretreatment process could activate Nb 2 O 5 efficiently. Pure Li 2 TiO 3 solid solution phase was thus obtained by calcining the mixture of the activated Nb 2 O 5 , LiOH·H 2 O, and Ti(C 4 H 9 O) 4 at temperatures as low as 650°C, which is about 200°C lower than that of the traditional solid‐state method. To the best of our knowledge, this temperature is the lowest one for preparing Li 2 TiO 3 solid solution. Additionally, the phase transformation and the morphology of the final powder are also discussed.