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Tetrahydrofuran Activation Assisted Synthesis of Nanosized Lithium Niobate and Lithium Tantalate
Author(s) -
Chien ChunHsiung,
Chang YuHsu,
Tsai ChihPin,
Peng ChihWei,
Wang LungShen,
Sheng PeiSun,
Lee ChiYoung,
Chiu HsinTien
Publication year - 2006
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200600035
Subject(s) - chemistry , lithium tantalate , tetrahydrofuran , lithium (medication) , tantalate , stoichiometry , lithium niobate , inorganic chemistry , organic chemistry , ferroelectricity , materials science , optoelectronics , medicine , solvent , dielectric , endocrinology
Black solid precursors obtained from reactions between MCl 5 (M = Nb, Ta) and alkyllithiums, n‐butyllithium ( n BuLi) and ethyllithium (EtLi), in tetrahydrofuran (THF) were heat treated under vacuum at 673–973 K to form nano‐sized particles (20–100 nm in diameter) of lithium niobate (LiNbO 3 ) and lithium tantalate (LiTaO 3 ). Stoichiometry of the reactants is critical and affects the phases of the products. Based on the volatile byproducts detected, a reaction pathway involving the activation of THF by alkyllithiums is proposed to be important for the formation of LiNbO 3 and LiTaO 3 precursors.