高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (2): 227.

• 研究简报 • 上一篇    下一篇

高温液相还原法制备钴纳米晶及其二维有序阵列

苏轶坤1,2, 申承民1, 杨天中1, 杨海涛1, 高鸿钧2, 力虎林1   

  1. 1. 兰州大学化学化工学院, 兰州 730000;
    2. 中国科学院物理研究所纳米物理与器件实验室, 北京 100080
  • 收稿日期:2003-05-20 出版日期:2004-02-24 发布日期:2004-02-24
  • 通讯作者: 力虎林(1936年出生),男,教授,博士生导师,从事电化学、材料化学和应用化学研究.E-mail;lihl@lzu.edu.cn E-mail:lihl@lzu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号;90206028)资助

Synthesis of Cobalt Nanocrystals by High Temperature Solution Phase Reducing Method and Their Two-dimensional Ordered Superlattices

SU Yi-Kun1,2, SHEN Cheng-Min1, YANG Tian-Zhong1, YANG Hai-Tao1, GAO Hong-Jun2, LI Hu-Lin1   

  1. 1. Department of Chemistry, Lanzhou University, Lanzhou 730000, China;
    2. Nanoscale Physics and Devices Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-05-20 Online:2004-02-24 Published:2004-02-24

关键词: 钴纳米晶, 高温液相还原法, 自组装, 超晶格

Abstract: The monodisperse magnetic cobalt nanocrystals(NCs) of 7 nm in diameter were prepared by using high temperature solution phase reducing method. The UV-Vis spectrum showed that the cobalt NCs was stable. The structure of the cobalt NCs were determined by XRD. The results showed that each of the cobalt nanoparticles is a single crystal with a complex cubic structure relating to the β phase of manganese. The XPS spectra indicate that the surface of Co nanoparticles was not oxidized or formed other compound. Two-dimensional order superlattices of the Co nanoparticles were formed by self-assembly technique.

Key words: Cobalt nanocrystals, High temperature solution phase reduction method, Self-assembly, Superlattice

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