Abstract In this work, the obtaining of Cu7.2S4 hexapods by a hydrothermal process of two stages is reported. First, hexapods of Cu2O were obtained using copper chloride, and then in the second stage, sodium sulfite was used at different weight ratios in relation with Cu2O for the transformation into Cu7.2S4. The XRD, SEM, Raman, and XPS studies show that at 1:1 wt-ratio the conversion is not completely achieved and the presence of the two phases in the hexapod is detected. By increasing the weight-ratio to 1:2, Cu7.2S4 hexapods with smooth surface were totally transformed into Cu7.2S4 ones with modified surface completely covered by nanosheets.

中文翻译：

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简单水热法合成亚硫酸铜六足体

摘要 在这项工作中，报道了通过两阶段水热法获得Cu7.2S4 六足体。首先，使用氯化铜获得 Cu2O 的六足体，然后在第二阶段，使用与 Cu2O 不同重量比的亚硫酸钠转化为 Cu7.2S4。XRD、SEM、拉曼和 XPS 研究表明，在 1:1 的重量比下，转化率并未完全实现，并且检测到六足体中存在两相。通过将重量比增加到 1:2，表面光滑的 Cu7.2S4 六足体完全转化为表面完全被纳米片覆盖的 Cu7.2S4 六足体。