新颖十二面体钛酸钡纳米晶体的水热生长机理

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Abstract In this study, using the surfactant PEG200, a novel dodecahedral nanocrystals of barium titanate with twelve (110) crystal surfaces were synthesized by hydrothermal method. The growth and structural characteristics of barium titanate nanoparticles under the hydrothermal conditions were analyzed by X-ray diffraction (XRD) and scanning electron microscope (SEM): In the initial stage of the reaction, under the strong alkaline condition, the surface of the precursor TiO₂ particles was dissolved and BaTiO₃ nucleation was produced rapidly; Under the action of PEG200, the crystal nucleus of BaTiO₃ regrew through the process of dissolution and precipitation, and finally grew into the dodecahedral nanocrystals. Using Johnson-Mehl-Avrami (JMA) equation, the kinetic simulation results show that the crystal nucleation is a control step, and the crystal growth is governed by the mechanism of “solution-precipitation”. It is revealed that the growth mechanism of barium titanate dodecahedral nanocrystals using TiO₂ particles as the precursor is the formation process of “solution-precipitation” under the surfactant control.

Key words： barium titanate dodecahedron JMA equation dissolution and precipitation mechanism

Published: 05 July 2019

CLC number:

O611

About author:: Hongquan Zhan, associate professor and master’s supervisor of Jingdezhen Ceramic Institute. His team’s research interest is the growth mechanism of inorganic micro-naocrystals.

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	Articles by authors
	ZHAN Hongquan
	DENG Ce
	WU Chuanqi
	LI Xiaohong
	XIE Zhipeng
	WANG Chang’an

Cite this article:

ZHAN Hongquan,DENG Ce,WU Chuanqi, et al. Hydrothermal Growth Mechanism of Barium Titanate Nanocrystals with a Novel Dodecahedral Morphology[J]. Materials Reports, 2019, 33(z1): 98-101.

URL:

http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2019/V33/Iz1/98

1 Ju L, Sabergharesou T, Radovanovic P V, et al. Journal of the American Chemical Society,2012,134(2),1136.
2 Bowen C R, Kim H A, Weaver P M, et al. Energy & Environmental Science,2014,7(1),25.
3 Wu J, Qin N, Bao D H, et al. ACS Applied Materials & Interfaces,2018,10(21),17842.
4 Li H, Liu H, Wang Z L, et al. Nano Letters,2015,15(4),2372.
5 Zhang G, Liu G, Irvine J T S, et al. Chemical Society Reviews,2016,45(21),5951.
6 Huang D, Wu Y, Miao J Y, et al. Chinese Journal of Inorganic Mate-rials,2017,32(2),219.
7 Hou Z W, Kang A G, Ma W Q, et al. Chinese Physics B,2014,23(11),117701.
8 杨晓磊, 卢亚平, 高玲香, 等. 无机材料学报,2016,31(12),1306.
9 黄咏安, 路标, 鲁圣国, 等. 无机材料学报,2018,33(7),767.
10 Zhan H Q, Jiang X P, Zhu M X, et al. Journal of Crystal Growth,2016,433,80.
11 Tang H X, Lin Y R, Sodano H A. Advanced Energy Materials,2013,3(4),451.
12 Li Y, Yang M Y, Mao C B, et al. ACS Applied Materials & Interfaces,2016,8(45),30714.
13 Yang W G, Yu Y H, Wang X D, et al. Nano Letters,2015,15(11),7574.
14 Koka A, Zhou Z, Sodano H A. Energy & Environmental Science,2014,7(1),288.
15 Modeshia D R, Walton R I. Chemical Society Reviews,2010,39(11),4303.
16 Eckert Jr J O, Lencka M M, Riman R E, et al. Journal of the American Ceramic Society,1996,79 (11),2929.
17 Zhang H F, Li Q J, Mao Y L, et al. The Journal of Physical Chemistry C,2018,122(9),5188.
18 Chen C K, Zhao S X, Nan C W, et al. Dalton Transactions,2017,46(15),5017
19 施畏尔, 夏长泰, 仲维卓, 等. 中国科学,1997,27(2),126.
20 仲维卓, 夏长泰, 施畏尔, 等. 中国科学,1997,27(1),9.
21 Li J, Hietala S, Tian X L. ACS Nano,2015,9(1),496.
22 Yasui K, Kato K. The Journal of Physical Chemistry C,2015,119(43),24597.
23 Zhan H Q, Wu M M, Zhou W Z, et al. Crystal Growth & Design,2012,12(3),1247.
24 展红全, 江向平, 陈超, 等. 无机化学学报,2011,27(10),1938.
25 展红全, 江向平, 李小红, 等. 物理化学学报,2011,27(12),2927.
26 Ren Z H, Xu G, Han G R, et al. Journal of the American Chemical So-ciety,2010,132(16),5572.