One-step microwave-solvothermal rapid synthesis of Sb doped PbTe/Ag2Te core/shell composite nanocubes

被引：22

作者：

Dong, Guo-Hui ^{[1
]}

Zhu, Ying-Jie ^{[1
]}

机构：

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

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 193卷

基金：

中国国家自然科学基金;

关键词：

Microwave; Core-shell; Composite; Nanocube; PbTe; Ag2Te; THERMOELECTRIC TRANSPORT-PROPERTIES; THERMAL-CONDUCTIVITY; CORE-SHELL; COLLOIDAL NANOCRYSTALS; CHEMICAL-SYNTHESIS; HIGH FIGURE; PBTE; MERIT; NANOSTRUCTURES; PERFORMANCE;

D O I：

10.1016/j.cej.2012.04.056

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Sb doped PbTe/Ag2Te core/shell composite nanocubes were synthesized by a rapid one-step microwave-assisted solvothermal method. The as-prepared composite nanocubes consisted of crystalline Sb doped PbTe as the core and amorphous Ag2Te as the shell. The reactants used were SbCl3, AgNO3, Pb(CH3COO)(2)center dot 3H(2)O, Na2TeO3, NaOH and NaBH4 in the solvent of ethylene glycol. The reaction mechanism of Sb doped PbTe/Ag2Te core/shell composite nanocubes was proposed. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), energy dispersive spectroscopy (EDS), selected-area electron diffraction (SAED), and X-ray photoelectron spectroscopy (XPS). (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：227 / 233

页数：7

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