采用超声波辅助沉淀法在不同条件下制备了多组纳米氢氧化镍,用X射线衍射仪对样品晶相结构进行了测试分析.结果表明,反应条件如镍源、掺杂元素、缓冲剂、制备方法都对Ni(OH)2晶相有较大影响.镍源或缓冲剂较大的阴离子半径有助于α-Ni(OH)2的形成；二元掺杂比单元掺杂时其产物α-Ni(OH)2比例高；掺杂离子的种类、半径、价态都直接影响Ni(OH)2的晶相.本文还对微乳液法和超声波辅助沉淀法制备的样品进行了对比分析.
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