摘要
采用液相反应法合成钒酸钇原料 .为了寻求最佳合成点 ,测定了氧化钇 (Y2 O3)和偏钒酸铵 (NH4 VO3)在硝酸和氨水中的溶解度 -浓度曲线 ;分析了温度对溶解度的影响 .钒酸钇粉末在 10 0℃的条件下烘干 ,5 0 0℃条件下烧结4 8h.XRD粉末衍射表明 。
Liquid phase reaction method was adopted to synthesize raw material of yttrium orthovanadate. In order to fit the optimum reaction condition, the solubilities of yttrium oxide in nitric acid and ammonium metavanadate in ammonia have been measured. Meanwhile the relationship between temperature and solubility was investigated. Raw material of YVO 4 in aqueous solution by reacting yttrium nitrate with ammonium metavanadate was obtained. White powder was obtained after filtrating, baking at 100 ℃ and sintering at 500 ℃. The investigation of XRD of the powder indicated that the powder was identified as the tetragonal crystal of yttrium orthovanadate.
出处
《上海大学学报（自然科学版）》
CAS
CSCD
2002年第2期124-126,共3页
Journal of Shanghai University:Natural Science Edition
基金
国家自然科学基金 (60 0 470 0 3 )资助项目
