摘要
本文利用溶液均相成核的特性和影响晶体生长因素作为理论指导,通过用乙二醇、三乙醇胺作为诱导溶剂及十六烷基三甲基溴化铵(CTAB)为模板剂分别制备出了形貌均一的晶须状、椭球状,球状、棒状、壳状和散片状碳酸镁,以此不同形貌碳酸镁为前驱物,控制煅烧制度制备出了与前驱物形貌基本一致的氧化镁,并对氧化镁形貌和前驱物形貌关系作了进一步探讨。
Based on the characteristics of solution homogeneous nucleation and the influence factors on crystal growth, different morphological magnesium carbonates （whisker, ellipsoid, sphere, rod, shell and leaf like） are respectively prepared by a solvent-induced method （ethylene glycol, triethanolamine as induced solvents） and a template-mediated method （cetyltrimethylammonium bromide as template agent）. And using the obtained magnesium carbonate as precursors, magnesium oxides with the same morphologies as precursors’ are prepared by controlling the calcinations regulation. The morphology relations between magnesium oxide and its precusors are also further studied.
基金
辽宁省政府镁资源保护办公室研究基金(PYF095)
关键词
无机化学工程
氧化镁
液相法
形貌
inorganic chemical engineering
magnesium oxide
liquid phase method
morphology
