反相微乳液合成单分散的四方形SnO2纳米晶

doi:10.3724/SP.J.1077.2010.10282

无机材料学报 ›› 2010, Vol. 25 ›› Issue (12): 1340-1344.DOI: 10.3724/SP.J.1077.2010.10282 CSTR: 32189.14.SP.J.1077.2010.10282

• 研究快报 • 上一篇

反相微乳液合成单分散的四方形SnO₂纳米晶

余长林¹, 周晚琴², 杨凯¹, 李立清¹

(江西理工大学 1. 材料与化学工程学院; 2. 信息工程学院, 赣州 341000)

收稿日期:2010-05-05 修回日期:2010-07-23 出版日期:2010-12-20 网络出版日期:2010-11-24
基金资助:
National Natural Science Foundation of China (21067004); Young Science Foundation of Jiangxi Province Education Office (GJJ10150); Open Foundation of State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University (200906)

Reverse Microemulsion Synthesis of Monodispersed Square-shaped SnO₂ Nanocrystals

YU Chang-Lin¹, ZHOU Wan-Qin², YANG Kai¹, LI Li-Qing¹, CHAO Fang-Fang¹, LI Xin¹

(1. School of Materials and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China; 2. School of Information Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China)

Received:2010-05-05 Revised:2010-07-23 Published:2010-12-20 Online:2010-11-24
Supported by:
National Natural Science Foundation of China (21067004); Young Science Foundation of Jiangxi Province Education Office (GJJ10150); Open Foundation of State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University (200906)

摘要/Abstract

摘要： 通过设计反相微乳液反应体系, 在水热条件下缓慢氧化SnF₂, 合成了单分散的四方形SnO₂纳米晶. 利用X射线多晶粉末衍射、扫描电镜、高分辩透射电镜对合成样品的形貌和结构进行了表征. 实验结果表明, 通过控制油胺的添加量调控微乳液水相的pH值, 可以对SnO₂的形貌进行调控. 使用适当量的油胺, 可以获得分散性极好、大小为10 nm左右的规则四方SnO₂纳米晶. 合适的pH值有利于晶核的定向生长, 从而在微乳液反应器中形成了规则的SnO₂四方纳米晶.

关键词: 反相微乳液, 四方SnO₂纳米晶, 油胺, 水热

Abstract: A nanosized reverse microemulsion reactor was designed for the fabrication of monodispersed SnO₂ nanosquares by oxidation of SnF₂ under hydrothermal conditions. As-prepared samples were characterized by X-ray diffraction, scanning electron microscope, transmission electron microscope and high resolution transmission electron microscope. The results show that the morphology of the SnO₂ nanocrystals can be controlled by regulating the amount of the used oleylamine which direct influenced the pH values of the aqueous phase. Well monodispersed SnO₂ nanosquares with the size around 10nm can be obtained. A proper pH value could benefit the oriented attachments of the crystalline seeds which gradually grew into a square-plate NCs shape in the microemulsion reactor.

Key words: reverse microemulsion, SnO2 nanosquares, oleylamine, hydrothermal

中图分类号:

TB383
TP212

余长林, 周晚琴, 杨凯, 李立清. 反相微乳液合成单分散的四方形SnO₂纳米晶[J]. 无机材料学报, 2010, 25(12): 1340-1344.

YU Chang-Lin, ZHOU Wan-Qin, YANG Kai, LI Li-Qing, CHAO Fang-Fang, LI Xin. Reverse Microemulsion Synthesis of Monodispersed Square-shaped SnO₂ Nanocrystals[J]. Journal of Inorganic Materials, 2010, 25(12): 1340-1344.

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反相微乳液合成单分散的四方形SnO₂纳米晶

Reverse Microemulsion Synthesis of Monodispersed Square-shaped SnO₂ Nanocrystals

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