Synthesis of SrAl₂O₄ from a mixed-metal citrate precursor

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• 作者：Xiaolin Qiu ; Yebin Xu ; Xueliang Qiao
• 关键词：SrAl₂O₄ ; Synthesis ; Citric acid
• 刊名：Materials Letters
• 出版年：2007
• 出版时间：May 2007
• 年：2007
• 卷：61
• 期：13
• 页码：2731-2734
• 全文大小：556 K

文摘

A mixed-metal citrate precursor method was used to synthesize SrAl₂O₄. The effects of the pH of the starting solutions and the molar ratio of citric acid to total metal cations concentration (CA/M) on the formation of SrAl₂O₄ were studied. DTA, TG, FT-IR, XRD and field emission scanning electron microscopy (FESEM) were used to characterize the precursors and the derived oxide powders. XRD analysis showed that single-phase SrAl₂O₄ was synthesized from CA/M = 2 precursors at a temperature of 900 °C for 2 h, without the formation of any intermediate phase.