田皓;崔建国;王荣;高婷;陈禹夫;张洋;

• 1:白云鄂博稀土资源研究与综合利用国家重点实验室包头稀土研究院稀土冶金及功能材料国家工程研究中心

摘要(Abstract)：

采用液相沉淀法以CeCl_3为铈源, NH_4HCO_3为沉淀剂,快速反应生成无定形沉淀,再引入较低压力和温度的强化条件,制备出晶型完整、分散性良好的球形纳米稀土氧化物。利用X射线衍射、扫描电子显微镜、粒度分析和热重-差热分析等测试方法对晶相组成、晶体粒度、形貌特征和热分解过程进行了研究,推测出化学反应原理并分析了晶体的形成过程。结果表明:在不使用分散剂条件下,通过晶型转变的控制能够获得符合市场需求的纳米球形稀土氧化物,该工艺容易进行工业推广。

关键词(KeyWords)： 纳米稀土氧化物;无定形;晶体;制备;表征

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金重点项目(51634005);; 内蒙古自然科学基金重大项目(2016ZD03);; 中国北方稀土课题项目(BFXT2017D0008)资助

作者(Author): 田皓;崔建国;王荣;高婷;陈禹夫;张洋;

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DOI:

参考文献(References)：

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