中华医学超声杂志

应用化学 ›› 2010, Vol. 27 ›› Issue (12): 1438-1443.DOI: 10.3724/SP.J.1095.2011.00281

• 研究论文 • 上一篇    下一篇

微波热解法制备Cu/Cu2O纳米材料

郭琦1,2,缪建军1,耿珺1,2,朱俊杰1*   

  1. (1.生命分析化学教育部重点实验室，南京大学化学化工学院 南京 210093;
    2.江苏教育学院化学系 南京)
  • 收稿日期:2010-05-13 修回日期:2010-07-04 出版日期:2010-12-10 发布日期:2010-12-10
  • 通讯作者: 朱俊杰，男，教授; E-mail:jjzhu@nju.edu.cn; 研究方向：生物传感器与功能纳米材料
  • 基金资助:
    国家自然科学基金(No.20635020，20605011，20805022) 资助项目

Synthesis of Cu/Cu2O nanomaterials by microwave thermo-decomposition method

GUO Qi1,2, MIAO Jian-Jun1, GENG Jun1,2, ZHU Jun-Jie1*   

  1. (1.College of Chemistry and Chemical Industry,Key Laboratory of Analytical Chemistry for
    Life Science,Nanjing University,Nanjing 210093;
    2.Department of Chemistry,Jiangsu Institute of Education,Nanjing)
  • Received:2010-05-13 Revised:2010-07-04 Published:2010-12-10 Online:2010-12-10

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摘要：

在二乙二醇溶剂体系中利用微波介电加热分解醋酸铜前体，进一步还原得到Cu2O和Cu纳米粒子以及Cu/Cu2O核壳结构。 采用X射线衍射、透射电子显微镜、扫描电子显微镜和紫外吸收光谱测试技术对产物的形貌、结构和组成进行了研究，结果表明，得到的Cu/Cu2O核壳结构直径为500 nm左右。 对比实验研究了不同聚合度乙二醇系列溶剂、反应时间以及表面活性剂或配位剂对产物形貌、组成的影响，表明低聚合度乙二醇和长的反应时间有利于醋酸铜还原形成铜。

关键词: Cu, Cu2O, 核壳结构, 微波法, 热解法

Abstract:

Copper acetate was decomposed by microwave heating to form Cu2O and Cu nanoparticles and Cu/Cu2O core/shell nanostructures. The crystal structures, compositions and morphologies of the products were characterized by powder X-ray diffraction(XRD), transmission electron microscopy(TEM) and scanning electron microscopy(SEM). The diameter of the as-prepared Cu/Cu2O core/shell nanostructures is about 500 nm. Controlled experiments found that polymerization degree of ethylene glycol, reaction time, surfactant or ligand have great effects on the morphology and composition of the products. Lower polymerization degree and longer reaction time facilitate the reduction of copper acetate to form Cu nanoparticles.

Key words: Cu, Cu2O, core/shell structure, microwave, heat decomposition

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