One-Pot Synthesis of Mn-Doped CeO2 Nanospheres for CO Oxidation

被引：64

作者：

Zhang, Xueying ^{[1
]}

Wei, Jingjing ^{[1
]}

Yang, Hongxiao ^{[1
]}

Liu, Xiufang ^{[1
]}

Liu, Wei ^{[1
]}

Zhang, Cong ^{[1
]}

Yang, Yanzhao ^{[1
]}

机构：

[1] Shandong Univ, Key Lab Special Funct Aggregate Mat, Educ Minist, Sch Chem & Chem Engn, Jinan 250100, Shandong, Peoples R China

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2013年 / 2013卷 / 25期

基金：

中国国家自然科学基金;

关键词：

Supported catalysts; Doping; Nanoparticles; Hydrothermal synthesis; Ceria; CATALYTIC-ACTIVITY; SOLID-SOLUTIONS; OXYGEN STORAGE; CERIA; NANOCRYSTALS; TEMPERATURE; OXIDES; COMBUSTION; BEHAVIOR; SURFACE;

D O I：

10.1002/ejic.201300370

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Ceria nanoparticles with 4 and 7 atom-% manganese dopant were synthesized through a template-free solvothermal method. The structure of the samples was characterized by powder X-ray diffraction (XRD). Monodispersed nanospheres of average size 130 nm were observed in transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), and field-emission scanning electron microscopy (FE-SEM) analyses. Manganese ions were introduced into the system and it is confirmed that the Mn species dissolve within the CeO2 lattice by Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). Furthermore, the as-obtained Mn-doped ceria nanoparticles revealed superior catalytic performance in CO oxidation in contrast with pure CeO2 prepared by the same route.

引用

页码：4443 / 4449

页数：7

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