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

详细信息	查看全文 | 推荐本文 |

• 作者：Guo-Hui Dong ; Ying-Jie Zhu ; ^{y.j.zhu@mail.sic.ac.cn}
• 关键词：Microwave ; Core-shell ; Composite ; Nanocube ; PbTe ; Ag2Te
• 刊名：Chemical Engineering Journal
• 出版年：2012
• 期刊代码：16_13858947
• 类别：ce
• 出版时间：15 June, 2012
• 卷：193-194
• 期：Complete
• 页码：227-233
• 文件大小：1374 K

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路3H₂O, 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).