Preparation of core-shell structured amorphous aluminum hydroxide ultra-fine powders via a microwave-hydrothermal route

被引：10

作者：

Wu, Xiuyong ^{[1
]}

Meng, Xianfeng ^{[1
]}

Ding, Jing ^{[1
]}

Kong, Qian ^{[1
]}

Wang, Debao ^{[2
]}

Hu, Zhengshui ^{[2
]}

机构：

[1] Taishan Med Coll, Dept Chem & Chem Engn, Tai An 271016, Shandong, Peoples R China

[2] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China

来源：

MATERIALS LETTERS | 2011年 / 65卷 / 14期

关键词：

Amorphous materials; Powder technology; Microstructure; BOEHMITE; NANOSTRUCTURES; NANOPARTICLES; SURFACTANT; GROWTH;

D O I：

10.1016/j.matlet.2011.04.072

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By using Al-2(SO4)(3) aqueous solution and urea as raw materials, spherical and laminar morphology amorphous aluminum hydroxide (Al(OH)(3)) ultra-fine powders were synthesized after 120 min reaction time at 150 degrees C via a microwave-hydrothermal route. It is interesting to note that the spherical particles could be self-encapsulated into the hollow shells which were constructed with the laminar morphology particles to form core-shell structured ultra-fine powders. The microscope analysis revealed that the spherical cores were around 1 mu m and the shells were about 2-3 mu m in diameter, respectively. To investigate the influencing factors and formation mechanism of the as-obtained core-shell structured amorphous aluminum hydroxide (Al (OH)(3)) ultra-fine powders, samples subjected to different reaction durations were also studied. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2133 / 2135

页数：3

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