Synthesis of Zero, One, and Three Dimensional CeO2 Particles and CO Oxidation over CuO/CeO2

被引：12

作者：

Shan Wenjuan ^{[1
]}

Liu Chang ^{[1
]}

Guo Hongjuan ^{[1
]}

Yang Lihua ^{[1
]}

Wang Xiaonan ^{[1
]}

Feng Zhaochi ^{[2
]}

机构：

[1] Liaoning Normal Univ, Coll Chem & Chem Engn, Inst Chem Functionalized Mat, Dalian 116029, Liaoning, Peoples R China

[2] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China

来源：

CHINESE JOURNAL OF CATALYSIS | 2011年 / 32卷 / 08期

基金：

中国国家自然科学基金;

关键词：

ceria; copper oxide; carbon monoxide; oxidation; nanostructure; Raman spectroscopy; CERIUM OXIDE NANOPARTICLES; DOPED CERIA; CATALYSTS; NANOTUBES; NANORODS; NANOCUBES; NANOSTRUCTURES; COMBUSTION; METHANE;

D O I：

10.1016/S1872-2067(10)60251-3

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A method to synthesize zero, one, and three dimensional (OD, ID, 3D) CeO2 from single crystal cerium formate by a surfactant-free route using H2O, ethanol and ethylene glycol as solvents is shown. OD CeO2 was composed of aggregated particles of 0.2-0.5 mu m. 1D CeO2 was hexagonal rods that were 25-30 mu m in width and more than 500 mu m in length. The pine needle shaped 3D CeO2 was assembled from smooth rods of 1 to 5 mu m diameter and up to 50 mu m length that had CeO2 nanoparticles as building units to give 3D micro/nanocomposite structures with a high BET surface area of 234 m(2)/g. Both 5 wt% CuO/1D CeO2 and 5 wt% CuO/3D CeO2 exhibited high catalytic activities for CO conversion due to the high BET surface area and the facile reducibility of surface CeO2.

引用

页码：1336 / 1341

页数：6

共 29 条

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