抄録
Potassium niobate (KNbO3) is a perovskite oxide functional material that has been attracting attention as dielectric materials. The present work describes the fabrication of the KNbO3 nanocubes by wet chemical reaction. The preparation and characterization of the KNbO3 nanocubes were investigated. KNbO3 was prepared using a solvothermal method. 40 mL organic solvent was used such as methanol, ethanol, 2-(2-methoxyethoxy)ethanol, 2-(2-ethoxyethoxy)ethanol, and 2-(2-n-butoxyethoxy)ethanol while niobium oxide (Nb2O5) and potassium hydroxide (KOH) were used as raw materials. The reaction was performed at 230 - 250℃ for 18 h. The characterization was carried out using X-ray diffraction (XRD) and scanning electron microscopy (SEM). When solvothermal syntheses were performed with various organic solvents, KNbO3 was formed from the XRD measurement and KNbO3 nanocubes were obtained from SEM observations. Particularly, KNbO3 nanocubes were the smallest size when the methanol solvent was used in this study.
