A Novel Simple Route to Synthesize Aqueous Niobium and Tantalum Precursors for Ferroelectric and Photocatalytic Applications

摘要

A simple novel route to synthesize aqueous tantalum and niobium precursors has been developed using cheap and stable Nb{sub}2O{sub}5 or Ta{sub}2O{sub}5 as starting source, based on basic flux technique. Various analytical techniques have been employed to characterize the purity, and thermal decomposition features of the precursors. Using home-made Ta and Nb precursors, several photocatalysts and ferroelectric powders such as LiNbO{sub}3, LiTaO{sub}3, Sr{sub}0.75Ba{sub}0.25Nb{sub}2O{sub}6, and SrBi{sub}2Ta{sub}2O{sub}9 have been prepared at lower processing temperature by a polymerizable complex route successfully.