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Synthesis of LaMeO 3 (Me = Cr, Mn, Fe, Co) Perovskite Oxides from Aqueous Solutions
Author(s) -
Yao Takeshi,
Ariyoshi Akira,
Inui Takashi
Publication year - 1997
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.1151-2916.1997.tb03141.x
Subject(s) - aqueous solution , hydrofluoric acid , perovskite (structure) , boric acid , materials science , inorganic chemistry , solid solution , chemical engineering , mineralogy , chemistry , metallurgy , organic chemistry , engineering
LaMeO 3 (Me = Cr, Mn, Fe, Co) perovskite oxides have many functional uses, and methods for forming films from aqueous solutions are advantageous compared with CVD, sputtering, sol‐gel methods, etc., because of lower cost, no requirement for a vacuum or high temperature, and applicability to films with wide areas and/or complicated shapes. A novel method for synthesizing LaMeO 3 from aqueous solutions at ordinary temperature and pressure has been discovered. LaMeO powder produced by solid‐state reaction was dissolved in hydrofluoric acid. Boric acid was added to shift the chemical equilibrium, then LaMeO 3 was synthesized. This method promises to lead to applications for preparing perovskite films for various uses.