|本期目录/Table of Contents|

[1]邹菁,张远孝,马锦爱,等.米粒和微球状二氧化铈的水热法合成及表征[J].武汉工程大学学报,2012,(9):1-4.[doi:103969/jissn16742869201209001]
　ZOU Jing,ZHANG Yuan xiao,MA Jin ai,et al.Synthesis and characterization of grain of ricelike and microspherelike CeO2 by hydrothermal method[J].Journal of Wuhan Institute of Technology,2012,(9):1-4.[doi:103969/jissn16742869201209001]
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米粒和微球状二氧化铈的水热法合成及表征(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年9期
页码:
1-4
栏目:
化学与化学工程
出版日期:
2012-10-10

文章信息/Info

Title:
Synthesis and characterization of grain of ricelike and microsphere
like CeO2 by hydrothermal method
文章编号:
16742869(2012)09000104
作者:

 

邹菁; 张远孝; 马锦爱; 江吉周; 李露; 舒好

武汉工程大学化工与制药学院，绿色化工过程教育部重点实验室，湖北 武汉 430074
Author(s):
ZOU Jing;  ZHANG Yuanxiao;  MA Jinai;  JIANG Jizhou;  LI Lu;  SHU Hao
School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Key Laboratory for Green Chemical
Process of Ministry of Education, Wuhan 430074, China
关键词:
二氧化铈; 形貌; 电催化活性; 水热法
Keywords:
 ; cerium dioxide;  morphlogy;  electrocatalgtic activity;  hydrothermal method
分类号:
TB383
DOI:
103969/jissn16742869201209001
文献标志码:
A
摘要:
以硝酸铈、尿素为原料，双氧水为氧化剂，采用水热法制备了萤石型立方相米粒和微球状二氧化铈,并考察了沉淀剂的种类，氧化剂及其用量、煅烧时间等因素对产物性能的影响，确定了制备米粒和微球状二氧化铈的优化条件.通过X射线衍射仪(XRD)，扫描电子显微镜(SEM)，拉曼光谱仪(Raman)，紫外可见分光光度计(UVDRS)以及电化学工作站(CHI)对产物的结构，形貌和性质进行表征和研究.结果表明：据Scherrer 公式得到组成米粒和微球状的二氧化铈的平均粒径为38 nm，光学带隙能Eg为2.88 eV，具有良好的光、电催化活性.
Abstract:
The grain of ricelike and microspherelike CeO2 with fluoritetype cubic phase were synthesized by a hydrothermal method using the cerium (III) nitrate, urea and hydrogen peroxide as the reactants. The various factors on the influence of reaction products were studied, such as the type of precipitant, oxidant and its usage, calcination temperature and so on. The optimal conditions of preparation of CeO2 were investigated. The structure, morphology and properties of the samples were characterized and investigated by means of scanning electron microscopy (SEM), Xray diffraction (XRD), Raman, UVvisible diffuse reflectance spectroscopy (UVDRS) and electrochemical workstations (CHI). The results show that the synthesized CeO2  possesses a good optical, electrocatalytic activity with 38 nm average size, and Eg=2.88 eV.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20120705基金项目：国家自然科学基金（21077037）；湖北省教育厅科学技术研究重点项目（D20121503）作者简介：邹菁（1963），女，湖南新化人，教授，博士，硕士研究生导师.研究方向：催化纳米材料的设计、合成及在环境污染物降解中的应用、环境及材料分析.
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