[1]韩志伟,解立峰,倪欧琪,等.爆轰法制备微米级球形氧化铈[J].南京理工大学学报(自然科学版),2013,37(03):76.
 Han Zhiwei,Xie Lifeng,Ni Ouqi,et al.Preparation of micro-size spherical ceria by detonation method[J].Journal of Nanjing University of Science and Technology,2013,37(03):76.
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爆轰法制备微米级球形氧化铈
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
37卷
期数:
2013年03期
页码:
76
栏目:
出版日期:
2013-06-30

文章信息/Info

Title:
Preparation of micro-size spherical ceria by detonation method
作者:
韩志伟解立峰倪欧琪李 斌陈际洋
南京理工大学 化工学院,江苏 南京 210094
Author(s):
Han ZhiweiXie LifengNi OuqiLi BinChen Jiyang
School of Chemical Engineering,NUST,Nanjing 210094,China
关键词:
爆轰合成 氧化铈 微米 球形 X射线衍射仪 扫描电子显微镜
Keywords:
detonation synthesis ceria micrometer spherical X-ray diffraction scanning electron microscope
分类号:
O381
摘要:
以Ce(NO3)3·3H2O和黑索金(RDX)为原料,探索了爆轰合成方法制备氧化铈,实验获得了灰白色氧化铈粉末。采用X射线衍射仪(XRD)和扫描电子显微镜(SEM)对氧化铈粉末进行了表征,研究了混合炸药中Ce(NO3)3·3H2O质量分数对氧化铈晶粒粒径的影响。XRD结果表明,得到的氧化铈为立方晶系。SEM图表明,氧化铈晶粒具有规则的球形外观,且具有较好的分散性。混合炸药中Ce(NO3)3·3H2O质量分数对氧化铈晶粒的平均粒径具有显著影响。混合炸药中Ce(NO3)3·3H2O质量分数越高,其对应的氧化铈晶粒平均粒径越大。当混合炸药中Ce(NO3)3·3H2O质量分数由15%增加到60%时,氧化铈的粒径相应地由2.2 μm增加至4.6 μm。
Abstract:
Ceria is synthesized by detonation method with Ce(NO3)3·3H2O and RDX,ceria powder of off-white appearance is obtained.The ceria powder is characterized by X-ray diffraction(XRD)and scanning electron microscope(SEM).The effect of the content of Ce(NO3)3·3H2O in the composite explosives on the size of ceria grain is discussed.XRD patterns show that the ceria is of cubic crystal structure.The SEM pictures present that the ceria grain has regularly spherical appearance and better dispersity.The content of Ce(NO3)3·3H2O in the composite explosives has significant effect on the size of ceria grain.The higher the contents of Ce(NO3)3·3H2O in the composite explosives are,the largger the cerium oxide particles diameters are.The size of cerium oxide increases from 2.2 μm to 4.6 μm as the content of Ce(NO3)3·3H2O in the composite explosives increasing from 15% to 60%.

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备注/Memo

备注/Memo:
收稿日期:2011-10-18 修回日期:2013-03-02
基金项目:国家自然科学基金(11102091); 江苏省普通高校研究生科研创新计划(CXZZ12_0178)
作者简介:韩志伟(1984-),男,博士生,主要研究方向:爆炸力学及其应用技术,E-mail:hzw997@163.com; 通讯作者:倪欧琪(1953-),男,教授,主要研究方向:工业炸药的研究及其应用,E-mail:7040niqi@vip.sina.com。
更新日期/Last Update: 2013-03-25