Sol-gel based synthesis of ultrafine tetragonal BaTiO3

被引：7

作者：

Hao, Yanan ^{[1
]}

Wang, Xiaohui ^{[1
]}

Zhang, Hui ^{[1
]}

Guo, Limin ^{[1
]}

Li, Longtu ^{[1
]}

机构：

[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2013年 / 67卷 / 01期

基金：

中国国家自然科学基金;

关键词：

BaTiO3; Sol-gel; Synthesis; Tetragonal phase; Dielectrics; BARIUM-TITANATE; DIELECTRIC-PROPERTIES; CERAMICS;

D O I：

10.1007/s10971-013-3065-y

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ultrafine tetragonal BaTiO3 nanocrystals have been prepared by a sol-gel based method. By adjusting the volume ratio of H2O/DEG (diethylene glycol) in the solutions, hydrolysis rate of tetra-n-butyl titanate was strongly inhibited and the particle size could be controlled as small as 4-8 nm. The powder X-ray diffraction and transmission electron microscopy characterizations exhibit that the nanocrystals are spherical and well crystallized. The Raman spectrum shows the products are composed of the orthorhombic phase and tetragonal phase. The Fourier transform infrared spectrum revealed that a surface modification layer was formed around the BaTiO3 nanocrystals, which can prevent them from aggregation and help to form a stable, high solid content sol.

引用

页码：182 / 187

页数：6

共 24 条

[11] Heat capacity, thermal conductivity, and thermal expansion of barium titanate-based ceramics
He, Y
[J]. THERMOCHIMICA ACTA, 2004, 419 (1-2) : 135 - 141
[12] A water-soluble precursor of BaTiO3 and transparent BaTiO3 thin-films prepared from the solution by a water-based dip-coating technique
Iwase, Katsuhiko
Kasuga, Shinnosuke
Kawai, Takahiro
Matsushima, Yuta
[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2012, 64 (01) : 170 - 177
[13] Preparation and electrical properties of nanoporous BaTiO3
Ji, Botao
Chen, Dairong
Jiao, Xiuling
Zhao, Zhongqiang
Jiao, Yingxun
[J]. MATERIALS LETTERS, 2010, 64 (16) : 1836 - 1838
[14] Structure and electrorheological properties of nanoporous BaTiO3 crystalline powders prepared by sol-gel method
Jiang, Wanquan
Jiang, Chuanxia
Gong, Xinglong
Zhang, Zhong
[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2009, 52 (01) : 8 - 14
[15] The synthesis of stable, high solid content alumina sol
Jing, CB
Zhao, XJ
Tao, HZ
[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2006, 38 (01) : 19 - 23
[16] Size effect on crystal structures of barium titanate nanoparticles prepared by a sol-gel method
Kobayashi, Y
Nishikata, A
Tanase, T
Konno, M
[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2004, 29 (01) : 49 - 55
[17] Self-propagating high-temperature synthesis of barium titanate and subsequent densification by spark plasma sintering (SPS)
Licheri, Roberta
Fadda, Sarah
Orru, Roberto
Cao, Giacomo
Buscaglia, V.
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (05) : 2245 - 2253
[18] Direct synthesis of ultrafine tetragonal BaTiO3 nanoparticles at room temperature
Qi, Jian Quan
Peng, Tao
Hu, Yong Ming
Sun, Li
Wang, Yu
Chen, Wan Ping
Li, Long Tu
Nan, Ce Wen
Chan, Helen Lai Wah
[J]. NANOSCALE RESEARCH LETTERS, 2011, 6 : 1 - 4
[19] Structural Evolution of BaTiO3 Nanocrystals Synthesized at Room Temperature
Rabuffetti, Federico A.
Brutchey, Richard L.
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (22) : 9475 - 9487
[20] In situ investigation of chemical reactions between BaCO3 and anatase or rutile TiO2
Tsuzuku, Koichiro
Couzi, Michel
[J]. JOURNAL OF MATERIALS SCIENCE, 2012, 47 (10) : 4481 - 4487

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