Nanostructured Bi2Te3 Synthesized by Low Temperature Aqueous Chemical Route

Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (16): 1515-1519. Previous Articles Next Articles

Original Articles

纳米结构Bi₂Te₃化合物的低温湿化学合成

孙霆，朱铁军，赵新兵*

(浙江大学硅材料国家重点实验室杭州 310027)

投稿日期:2004-10-09 修回日期:2005-04-12 发布日期:2010-12-10
通讯作者: 赵新兵

Nanostructured Bi₂Te₃ Synthesized by Low Temperature Aqueous Chemical Route

SUN Ting,ZHU Tie-Jun,ZHAO Xin-Bing*

(State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027)

Received:2004-10-09 Revised:2005-04-12 Published:2010-12-10
Contact: ZHAO Xin-Bing

Abstract

Chemical and physical reactions during the low temperature aqueous chemical synthesis of nanostructured Bi₂Te₃ powders were investigated in situ by pH measurement and color observation of the solution and X-ray diffraction analysis of the powders. It was found that Bi₂Te₃ could be synthesized only in a strong alkaline solution. Bi₂Te₃ nanocapsules have been synthesized by the aqueous chemical route at 65 ℃ with the addition of disodium ethylenediaminetetraacetate salt. High-resolution transmission electron microscopy observation indicates that the nanocapsules are hollow structured with a wall thickness of about 6 nm.

Key words: Bi₂Te₃, nanocapsule, nanotube, aqueous chemical synthesis, thermoelectric material

Cite this article

SUN Ting,ZHU Tie-Jun,ZHAO Xin-Bing*. Nanostructured Bi₂Te₃ Synthesized by Low Temperature Aqueous Chemical Route[J]. Acta Chimica Sinica, 2005, 63(16): 1515-1519.

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纳米结构Bi₂Te₃化合物的低温湿化学合成

Nanostructured Bi₂Te₃ Synthesized by Low Temperature Aqueous Chemical Route

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纳米结构Bi2Te3化合物的低温湿化学合成