Controllable synthesis of Cu₇Te₄ nanoparticles and sheet-like particles through the delayed reaction and their thermal stability

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• 作者：Qun Wang ; ^a ; ^{wangqun5992@tom.com} ; Gang Chen ; ^a ; ^{gchen@hit.edu.cn} ; Xiaorui Shi^a ; Rencheng Jin^a ; Lin Wang^a ; Dahong Chen^a
• 关键词：Cu₇Te₄ ; Nanoparticle ; Sheet-like particles ; Formation mechanism ; Thermal stability
• 刊名：Powder Technology
• 出版年：2011
• 出版时间：15 February 2011
• 年：2011
• 卷：207
• 期：1-3
• 页码：192-198
• 全文大小：1425 K

文摘

Cu₇Te₄ nanoparticles and sheet-like particles have been successfully synthesized using different organic solvents (acetone and cyclohexanone) by a solvothermal process. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) were employed to characterize the as-obtained products. From the experimental results, it has been revealed that the reaction temperature and types of organic solvent have crucial effects on the morphology of the prepared products. The possible formation mechanism for diverse microstructures was put forward. Furthermore, the oxidation process of Cu₇Te₄ nanoparticles and sheet-like particles under air indicates morphology-dependent property.