Sb2Te3 nanobelts and nanosheets: Hydrothermal synthesis, morphology evolution and thermoelectric properties

被引：40

作者：

Dong, Guo-Hui ^{[1
]}

Zhu, Ying-Jie ^{[1
]}

Cheng, Guo-Feng ^{[1
]}

Ruan, Yin-Jie ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 550卷

基金：

中国国家自然科学基金;

关键词：

Antimony telluride; Nanostructured materials; Chemical synthesis; Hydrothermal; Thermoelectric; SOLVOTHERMAL SYNTHESIS; MERIT; NANOSTRUCTURES; CHALCOGENIDE; DEVICES; FIGURE; BULK;

D O I：

10.1016/j.jallcom.2012.09.061

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sb2Te3 nanobelts and nanosheets were synthesized by a hydrothermal method using SbCl3 and TeO2 as the antimony and tellurium source, hydrazine hydrate as a reducing reagent, polyvinyl alcohol as a surfactant and water as the solvent. The effects of experimental parameters on the product were investigated. The experiments indicated that the elemental Te formed during the reaction, acting as a reactive and self-sacrificial template for the formation of Sb2Te3 nanobelts. The morphology evolution from Sb2Te3 nanobelts to nanosheets with the prolonging hydrothermal time was observed. The products were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), selected area electron diffraction (SAED), Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC). The thermoelectric properties of the tablet samples of Sb2Te3 nanostructured powders with different morphologies prepared by a room-temperature pressurized method were investigated. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：164 / 168

页数：5

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