高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 207.

• Chemistry in Materials Sciences • 上一篇    下一篇

Syntheses of Nanocrystals Using Solid-state Double Decomposition Reactions at Room-temperature:CdS, ZnS and CaCO3

LI Si-Dian1,2, LI Sheng-Yun2, ZHAO Xiu-Feng2, HOU Yu-Cui2, CHEN Juan2, JIN Zhi-Hao1   

  1. 1. School of materials science and engineering at Xian JiaoTong University, Xian 710000;
    2. Institute of materials Science of Taiyuan Teachers'College, Taiyuan 030001
  • 出版日期:2000-12-31 发布日期:2000-12-31

Syntheses of Nanocrystals Using Solid-state Double Decomposition Reactions at Room-temperature:CdS, ZnS and CaCO3

LI Si-Dian1,2, LI Sheng-Yun2, ZHAO Xiu-Feng2, HOU Yu-Cui2, CHEN Juan2, JIN Zhi-Hao1   

  1. 1. School of materials science and engineering at Xian JiaoTong University, Xian 710000;
    2. Institute of materials Science of Taiyuan Teachers'College, Taiyuan 030001
  • Online:2000-12-31 Published:2000-12-31

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摘要：

Development of effective and reproducible approaches for preparing large amount of uniformly sized or narrowly size-distributed inorganic nanocrystals has remained as a great challenge in materials chemistry research in the past decade. Based upon Xiang and coworkers, work[1], in this paper we present a simple and effective approach directly utilizing solid-state double decomposition reactions at room temperature to produce nano-particles of CdS, ZnS and CaCO3 in the size range of 3-20 nm measured with x-ray diffraction. Transmission electron microscope (TEM) images of these nano-crystals confirm the existence of the aggregated "islands" of nano-crystals as the main body of the samples and the partially dispersed nano-particles in some areas. The processes of morphological variation and self-assembly of CdS nano-particles under electron beam bombardment are discussed as well.

Abstract:

Development of effective and reproducible approaches for preparing large amount of uniformly sized or narrowly size-distributed inorganic nanocrystals has remained as a great challenge in materials chemistry research in the past decade. Based upon Xiang and coworkers, work[1], in this paper we present a simple and effective approach directly utilizing solid-state double decomposition reactions at room temperature to produce nano-particles of CdS, ZnS and CaCO3 in the size range of 3-20 nm measured with x-ray diffraction. Transmission electron microscope (TEM) images of these nano-crystals confirm the existence of the aggregated "islands" of nano-crystals as the main body of the samples and the partially dispersed nano-particles in some areas. The processes of morphological variation and self-assembly of CdS nano-particles under electron beam bombardment are discussed as well.

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