The effect of Eu doping on the growth, structure and red-ox activity of ceria nanocubes

被引：24
作者：
Bezkrovnyi, Oleksii [1 ]
Malecka, Malgorzata A. [1 ]
Lisiecki, Radoslaw [1 ]
Ostroushko, Volodymyr [2 ]
Thomas, Andrew G. [3 ,4 ]
Gorantla, Sandeep [5 ]
Kepinski, Leszek [1 ]
机构：
[1] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, Wroclaw, Poland
[2] NSC Kharkov Inst Phys & Technol, Kharkov, Ukraine
[3] Univ Manchester, Sch Mat, Manchester M13 9PL, Lancs, England
[4] Univ Manchester, Photon Sci Inst, Manchester M13 9PL, Lancs, England
[5] Wroclaw Res Ctr EIT, Wroclaw, Poland
来源：
CRYSTENGCOMM | 2018年 / 20卷 / 12期
基金：
英国工程与自然科学研究理事会;
关键词：
ORIENTED-ATTACHMENT; SOLID-SOLUTIONS; NANOPARTICLES; NANOCRYSTALS; CATALYSTS; SEGREGATION; MECHANISMS; MORPHOLOGY; NANORODS; BEHAVIOR;
D O I：
10.1039/c8ce00155c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ce1-xEuxO2 nanocubes, with maximum Eu content x = 0.4, were synthesized by a simple hydrothermal method. Application of various experimental techniques (SEM-EDS, STEM-EDS, XPS, ICP-AES) revealed a uniform distribution of Eu and Ce in the nanocubes, but some oxygen depletion near the surface was detected. A model explaining the effect of the Eu doping on the growth of ceria nanocubes by the oriented attachment mechanism is proposed. The oxygen vacancy ordering in high-doped (x 0.1) ceria nanoparticles was found, and its effect on the reduction of ceria nanocubes is discussed.
引用
收藏
页码：1698 / 1704
页数：7
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