One-pot hydrothermal synthesis of CeO2 hollow microspheres

被引：17

作者：

Yang, Zhijie ^{[1
]}

Liu, Ling ^{[1
]}

Liang, Hui ^{[1
]}

Yang, Hongxiao ^{[1
]}

Yang, Yanzhao ^{[1
]}

机构：

[1] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Shandong, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2010年 / 312卷 / 03期

关键词：

Nanostructures; Hydrothermal crystal growth; Nanomaterials; Oxide; SPHERES; NANOPARTICLES; CERIA; NANOSPHERES; FABRICATION; NANOCRYSTALS; NANOCUBES; NANOCAGES;

D O I：

10.1016/j.jcrysgro.2009.11.027

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

In this work, we report a simple one-pot hydrothermal approach to prepare CeO2 hollow microspheres with a mean diameter of 1.5 mu m and a shell thickness of 90 nm. Structure and morphology of CeO2 hollow spheres were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), field-emission scanning electron microscope (FE-SEM), and N-2 adsorption-desorption. In the reaction system, L-asparagine and KBrO3 act as OH- provider and oxidizer, respectively. Reaction duration and L-asparagine content are shown to play important roles in the formation of the hollow structures. A hollowing mechanism is proposed based on the experimental results. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：426 / 430

页数：5

共 29 条

[1] Formation of colloidal CuO nanocrystallites and their spherical aggregation and reductive transformation to hollow CU2O nanospheres [J].

Chang, Y ;

Teo, JJ ;

Zeng, HC .

LANGMUIR, 2005, 21 (03) :1074-1079

[2] Controlled synthesis of self-assembled metal oxide hollow spheres via tuning redox potentials: Versatile nanostructured cobalt oxides [J].

Chen, Chun-Hu ;

Abbas, Shams F. ;

Morey, Aimee ;

Sithambaram, Shanthakumar ;

Xu, Lin-Ping ;

Garces, Hector F. ;

Hines, William A. ;

Suib, Steven L. .

ADVANCED MATERIALS, 2008, 20 (06) :1205-+

[3] Interface reaction route to two different kinds of CeO2 nanotubes [J].

Chen, Guozhu ;

Xu, Caixia ;

Song, Xinyu ;

Zhao, Wei ;

Ding, Yi ;

Sun, Sixiu .

INORGANIC CHEMISTRY, 2008, 47 (02) :723-728

[4] Biomolecule-Assisted Synthesis of In(OH)3 Hollow Spherical Nanostructures Constructed with Well-Aligned Nanocubes and Their Conversion into C-In2O3 [J].

Chen, Li-Yong ;

Zhang, Zu-De .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (48) :18798-18803

[5] Converting ceria polyhedral nanoparticles into single-crystal nanospheres [J].

Feng, Xiangdong ;

Sayle, Dean C. ;

Wang, Zhong Lin ;

Paras, M. Sharon ;

Santora, Brian ;

Sutorik, Anthony C. ;

Sayle, Thi X. T. ;

Yang, Yi ;

Ding, Yong ;

Wang, Xudong ;

Her, Yie-Shein .

SCIENCE, 2006, 312 (5779) :1504-1508

[6] Co3O4 nanoboxes:: Surfactant-templated fabrication and microstructure characterization [J].

He, T ;

Chen, DR ;

Jiao, XL ;

Wang, YL .

ADVANCED MATERIALS, 2006, 18 (08) :1078-+

[7] A lost-wax approach to monodisperse colloids and their crystals [J].

Jiang, P ;

Bertone, JF ;

Colvin, VL .

SCIENCE, 2001, 291 (5503) :453-457

[8] Fabrication of hollow palladium spheres and their successful application to the recyclable heterogeneous catalyst for Suzuki coupling reactions [J].

Kim, SW ;

Kim, M ;

Lee, WY ;

Hyeon, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (26) :7642-7643

[9] Preparation of mullite micro-vessels by a combined treatment of zeolite A [J].

Kosanovic, C ;

Subotic, B .

MICROPOROUS AND MESOPOROUS MATERIALS, 2003, 66 (2-3) :311-319

[10] Nickel-based ceria, zirconia, and ceria-zirconia catalytic systems for low-temperature carbon dioxide reforming of methane [J].

Kumar, Prashant ;

Sun, Yanping ;

Idem, Raphael O. .

ENERGY & FUELS, 2007, 21 (06) :3113-3123

← 1 2 3 →