Synthesis of Sb₂Se₃ and Bi₂Se₃ Nanoparticles in Ionic Liquids at Low Temperatures and Solid State Structure of [C₄C₁Im]₃[BiCl₆]

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• 作者：Manuel Loor ; Georg Bendt ; Julian Schaumann ; Ulrich Hagemann ; Markus Heidelmann ; Christoph Wö ; lper and Stephan Schulz
• 刊名：Zeitschrift für anorganische und allgemeine Chemie
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：643
• 期：1
• 页码：60-68
• 全文大小：1929K
• ISSN：1521-3749

文摘

Crystalline Sb₂Se₃ nanoparticles were prepared by reaction of SbCl₃ with (Et₃Si)₂Se in the presence of oleylamine (OA) in the ionic liquid [C₄C₁Im]Cl, whereas the reaction of (Et₃Si)₂Se with [C₄C₁Im]₃[BiCl₆] (1), which was obtained from the reaction of BiCl₃ with [C₄C₁Im]Cl and structurally characterized by single-crystal X-ray diffraction, yielded Bi-rich Bi₂Se₃ nanoparticles. In contrast, the reaction of the reactive IL [C₄C₁Im]₃[Bi₃I₁₂] with (Et₃Si)₂Se in the presence of oleylamine in [C₄C₁Im]I gave phase-pure Bi₂Se₃ nanoparticles. The chemical composition of the nanoparticles was investigated by EDX, while possible surface contaminations were studied by XPS and IR spectroscopy. The morphology of the nanoparticles was studied by SEM and TEM.