DICP OpenIR
Structure characterization and monolayer dispersion phenomenon of MgO-ZrO2 prepared by co-precipitation
Guan, HB; Liang, J; Zhu, YX; Zhao, BY; Xie, YC
关键词Zro2 Mgo Binary Oxide Monolayer Dispersion Co-precipitation Solid Solution
刊名ACTA PHYSICO-CHIMICA SINICA
2005-09-01
DOI10.3866/PKU.WHXB20050914
21期:9页:1011-1016
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]SURFACE ; OXIDE ; PHASES ; EXAFS ; MGO
英文摘要A series of MgO-ZrO2 composites with various compositions were prepared by co-precipitation with NH4OH from mixed aqueous solution of nitrates and calcination at 500 degrees C and 600 degrees C respectively. The samples were characterized by XRD, XPS, BET, TEM, EXAFS and DTA measurements. The results exhibit that MgO tends to dissolve into the bulk phase of ZrO2 to form solid solution as Mg/Zr molar ratio is lower than 1. After the dissolution reaches saturation, MgO starts to disperse onto the surface of the solid solution, and at the same time the separate crystalline phase of MgO appears. However, when the content of MgO is high, ZrO2 does not dissolve into the bulk phase of MgO and not form the separate crystalline phase of ZrO2, but disperses onto the surface of the crystallite of MgO. And the properties of the surfaces of the samples were obviously affected by the dispersion of ZrO2. These results suggest that in the samples prepared by co-pre-cipitation, one component can disperse as a monolayer onto the surface of the separate crystalline phase of the other component or the solid solutions composed of the two components. in a certain content range. This phe-nomenon might exist in many binary oxide systems and deserves much more attention.
语种英语
WOS记录号WOS:000231990900014
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139877
专题中国科学院大连化学物理研究所
作者单位Peking Univ, Coll Chem & Mol Engn, Inst Chem Phys, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Guan, HB,Liang, J,Zhu, YX,et al. Structure characterization and monolayer dispersion phenomenon of MgO-ZrO2 prepared by co-precipitation[J]. ACTA PHYSICO-CHIMICA SINICA,2005,21(9):1011-1016.
APA Guan, HB,Liang, J,Zhu, YX,Zhao, BY,&Xie, YC.(2005).Structure characterization and monolayer dispersion phenomenon of MgO-ZrO2 prepared by co-precipitation.ACTA PHYSICO-CHIMICA SINICA,21(9),1011-1016.
MLA Guan, HB,et al."Structure characterization and monolayer dispersion phenomenon of MgO-ZrO2 prepared by co-precipitation".ACTA PHYSICO-CHIMICA SINICA 21.9(2005):1011-1016.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Guan, HB]的文章
[Liang, J]的文章
[Zhu, YX]的文章
百度学术
百度学术中相似的文章
[Guan, HB]的文章
[Liang, J]的文章
[Zhu, YX]的文章
必应学术
必应学术中相似的文章
[Guan, HB]的文章
[Liang, J]的文章
[Zhu, YX]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。