Large-scale growth and shape evolution of bismuth ferrite particles with a hydrothermal method

被引：82

作者：

Chen, Xian-Zhi ^{[1
]}

Qiu, Zhong-Cheng ^{[1
]}

Zhou, Jian-Ping ^{[1
]}

Zhu, Gangqiang ^{[1
]}

Bian, Xiao-Bing ^{[1
]}

Liu, Peng ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 126卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Ceramics; Crystal growth; SEM; Crystal structure; LOW-TEMPERATURE SYNTHESIS; MAGNETIC-PROPERTIES; BIFEO3; POWDERS; SIZE; STABILITY;

D O I：

10.1016/j.matchemphys.2011.01.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Large-scale polyhedral bismuth ferrite (BiFeO3) particles were synthesized with a hydrothermal method under a series of experimental conditions. X-ray diffraction revealed that the BiFeO3 powders had a perovskite structure. Scanning electron microscopy images showed different BiFeO3 particles were formed, including sphere, octahedron, truncated octahedron, cubo-octahedron and truncated cube. The experimental results showed that the concentration of KOH, reaction time, heating and cooling rates had important impacts on the size and morphology of the BiFeO3 particles. The formation mechanism and change process of the large-scale polyhedral BiFeO3 particles were discussed in detail. The obtained BiFeO3 showed ferroelectric behavior and magnetic response, which approved the multiferroic property of the BiFeO3 crystallization. The optical behaviors of BiFeO3 particles revealed the band gap energy of about 2 eV, which is smaller than the BiFeO3 bulk due to the nano-crystallites. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：560 / 567

页数：8

共 39 条

[1] Ferroelectric-Paraelectric Transition in BiFeO3: Crystal Structure of the Orthorhombic β Phase [J].

Arnold, Donna C. ;

Knight, Kevin S. ;

Morrison, Finlay D. ;

Lightfoot, Philip .

PHYSICAL REVIEW LETTERS, 2009, 102 (02)

[2] Microstructure and properties of Co-, Ni-, Zn-, Nb- and W-modified multiferroic BiFeO3 ceramics [J].

Azough, Feridoon ;

Freer, Robert ;

Thrall, Michael ;

Cernik, Robert ;

Tuna, Floriana ;

Collison, David .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2010, 30 (03) :727-736

[3] Synthesis and magnetic properties of BiFeO3 and Bi0.98Y0.02FeO3 [J].

Bellakki, M. B. ;

Manivannan, V. ;

Madhu, C. ;

Sundaresan, A. .

MATERIALS CHEMISTRY AND PHYSICS, 2009, 116 (2-3) :599-602

[4] PHOTOELECTROLYSIS AND PHYSICAL-PROPERTIES OF SEMICONDUCTING ELECTRODE WO3 [J].

BUTLER, MA .

JOURNAL OF APPLIED PHYSICS, 1977, 48 (05) :1914-1920

[5] Physics and Applications of Bismuth Ferrite [J].

Catalan, Gustau ;

Scott, James F. .

ADVANCED MATERIALS, 2009, 21 (24) :2463-2485

[6]

Chen C, 2006, J CRYST GROWTH, V291, P135, DOI 10.1016/j.jcrysgro.2006.02.048

[7] Coalescence of the crystallites under hydrothermal conditions (II) - The morphology and stability energy calculation of cuprite [J].

Chen, ZZ ;

Shi, EW ;

Yuan, RL ;

Zheng, YQ ;

Li, WJ ;

Zhao, TR .

SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES, 2003, 46 (04) :423-431

[8] Band gap and Schottky barrier heights of multiferroic BiFeO3 [J].

Clark, S. J. ;

Robertson, J. .

APPLIED PHYSICS LETTERS, 2007, 90 (13)

[9] Synthesis of bismuth ferrite lead titanate nano-powders and ceramics using chemical co-precipitation [J].

Comyn, Tim P. ;

Kanguwe, David F. ;

He, Jingyan ;

Brown, Andrew P. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2008, 28 (11) :2233-2238

[10] Preparation and photoabsorption characterization of BiFeO3 nanowires [J].

Gao, F. ;

Yuan, Y. ;

Wang, K. F. ;

Chen, X. Y. ;

Chen, F. ;

Liu, J. -M. .

APPLIED PHYSICS LETTERS, 2006, 89 (10)

← 1 2 3 4 →