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›› 2005, Vol. 5 ›› Issue (5): 532-534.

• 过程与工艺 • 上一篇    下一篇

两种多元醇水热条件下还原所得产物铜的形貌

陈庆春,邓慧宇,刘晓东   

  1. 东华理工学院材料科学与工程系
  • 出版日期:2005-10-20 发布日期:2005-10-20

Morphologies of Cu Reduced by Two Kinds of Polyols under Hydrothermal Conditions

CHEN Qin-chun,DENG Hui-yu,LIU Xiao-dong   

  1. Department of Materials Science and Engineering, East China Institute of Technology
  • Online:2005-10-20 Published:2005-10-20

摘要: 借助X射线衍射和扫描电镜,研究了180℃水热条件下,以CuSO4×5H2O和NaOH为原料,当[Cu2+]/[OH-]为1:4时,分别添加不同质量的两种多元醇D-山梨醇和核糖醇时还原产物铜的形貌. 结果表明,在两种质量下,添加不同多元醇的产物有很明显的区别,添加D-山梨醇所得产物为叶形,添加核糖醇所得产物大多为表面粗糙的八面体. 其机理是,当[Cu2+]/[OH-]为1:4时,D-山梨醇不仅作还原剂,而且可能与[Cu(OH)4]2-配位作导向剂决定晶体生长,而核糖醇仅作为还原剂.

关键词: 水热还原, D-山梨醇, 核糖醇, 铜, 形貌

Abstract: Via characterization of XRD and SEM, the morphologies of Cu reduced by two kinds of polyols with different additions, D-sorbitol and adonitol, under 180℃ hydrothermal conditions were demonstrated, when CuSO4×5H2O and NaOH were taken as main sources and the ratio of [Cu2+]/[OH-] was 1:4. The results show that the reduced products are obviously different with addition of different polyols at both 0.100 g and 0.255 g weights. The reduced products are leaf-like Cu with addition of D-sorbitol and octahedrons with addition of adonitol, respectively. The mechanism is that the D-sorbitol is not only reductive, but also plays as an orientation cooperating with [Cu(OH)4]2- to decide the crystal growth, while the adonitol is only as reductive, when the ratio of [Cu2+]/[OH-] is 1:4.

Key words: hydrothermal reduction, D-sorbitol, adonito, Cu, morphology