高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (1): 124.

• 研究快报 • 上一篇    下一篇

纳米金刚石球晶的激光溅射产生与透射电镜表征

王育煌1, 余荣清1, 刘朝阳1, 黄荣彬1, 郑兰荪1, 章效锋2, 胡刚2, 张泽2   

  1. 1. 厦门大学, 厦门, 361005;
    2. 中国科学院北京电子显微镜研究室
  • 收稿日期:1996-06-04 出版日期:1997-01-24 发布日期:1997-01-24
  • 通讯作者: 郑兰蓀
  • 作者简介:王育煌, 男, 23岁, 硕士研究生.
  • 基金资助:

    国家杰出青年科学基金;国家教育委员会“跨世纪人才计划”基金

Production of Diamond Nanospherulite at Carbon-Water Interface by Laser Ablation and Its Characterization by TEM

WANG Yu-Huang1, YU Rong-Qing1, LIU Zhao-Yang1, HUANG Rong-Bin1, ZHENG Lan-Sun1, ZHANG Xiao-Feng2, HU Gang2, ZHANG Ze2   

  1. 1. State Key Laboratory for Physical Chemistry of Solid Surface, Xiamen University, Xiamen, 361005;
    2. Department of Chemistry, Xiamen University, Xiamen, 361005
  • Received:1996-06-04 Online:1997-01-24 Published:1997-01-24

关键词: 金刚石, 球晶, 激光溅射, 透射电镜

Abstract: Carbon nanoparticle appearing in perfect spherical shape, with sizes varying from tens nanometers to several micrometers, can be produced by pulsed-laser ablating different elementary carbon samples immersed in water.Avariety of samples including HOPG,graphite, arcdischarging deposite, glassy-carbon and imitation-diamond have been tried.The yield of the diamand nanospherulite is found to depend on the structure of the sample.The SAEDpattern of the carbon-sphere produced from arc-discharging deposite can be at-tributed to the hexagonal structure of diamond, and its HREMimage exihibits 0.38nm×0.31 nm lattice, which is just three times of the distances for (110) (d=0.126 nm) and (004) (d=0.1030nm) crystal layers of hexagonal diamond, respectively.While the SAEDpattern from glassy-carbon sample displays a cubic-diamond structure.Furthermore, Raman spectra and 13C NMRindicate tetrahedral network of the spheres.

Key words: Diamond, Nanospherulitic, Laser ablation, TEM

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