高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (2): 261.

• 研究快报 • 上一篇    下一篇

胶体分形聚集体分维数与随时间变化的SERS强度关系研究

张宏光, 刘凡镇, 何天敬, 辛厚文   

  1. 中国科学技术大学近代化学系, 结构分析开放实验室, 合肥 230026
  • 收稿日期:1992-09-11 修回日期:1992-12-11 出版日期:1993-02-24 发布日期:1993-02-24
  • 通讯作者: 张宏光
  • 基金资助:

    国家自然科学基金

A Study of Relationship Between Time Dependent SERS Intensity and Fractional Dimension of Colloidal Fractional Aggregates

ZHANG Hong-Guang, LIU Fan-Zhen, HE Tian-Jing, XIN Hou-Wen   

  1. Department of Modern Chemistry, Structure Research Laboratory, University of Science and Technology of China, Hefei, 230026
  • Received:1992-09-11 Revised:1992-12-11 Online:1993-02-24 Published:1993-02-24

关键词: 胶体聚集, 分维数, 表面增强Raman散射

Abstract: The relations between time dependent SERSintensity and fractional dimension of colloidal fractional aggregates formed in both the diffusion and the reaction limited regimes were established in the paper.According to the relationship, the fractional dimensions of silver bromide colloid aggregates formed in the two regimes were given by the time dependent SERSintensity of adsorbed pyridine in AgBr sol, they are in good agreement with the universal value and suggest that SERSwill be a useful tool in the study of kinetics of colloid aggregation, especially in the study of fractional structure of colloidal aggregates.

Key words: Colloidal aggregation.Fractional dimension, Surface enhanced Raman scattering(SERS)

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